./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:27:47,641 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:27:47,805 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 22:27:47,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:27:47,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:27:47,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:27:47,845 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:27:47,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:27:47,847 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:27:47,852 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:27:47,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:27:47,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:27:47,855 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:27:47,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:27:47,857 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:27:47,857 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:27:47,858 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:27:47,858 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:27:47,858 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:27:47,859 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:27:47,859 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:27:47,860 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:27:47,861 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:27:47,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:27:47,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:27:47,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:27:47,862 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:27:47,863 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:27:47,863 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:27:47,864 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:27:47,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:27:47,865 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:27:47,865 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:27:47,866 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:27:47,866 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:27:47,866 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:27:47,866 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d [2023-11-06 22:27:48,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:27:48,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:27:48,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:27:48,296 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:27:48,297 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:27:48,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2023-11-06 22:27:51,467 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:27:52,203 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:27:52,203 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2023-11-06 22:27:52,256 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/bin/uautomizer-verify-WvqO1wxjHP/data/db2613f32/4626b78415e24b9b9c17d6eb0a6f8fc1/FLAG3051ef027 [2023-11-06 22:27:52,273 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/bin/uautomizer-verify-WvqO1wxjHP/data/db2613f32/4626b78415e24b9b9c17d6eb0a6f8fc1 [2023-11-06 22:27:52,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:27:52,282 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:27:52,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:27:52,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:27:52,294 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:27:52,295 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:27:52" (1/1) ... [2023-11-06 22:27:52,296 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b3791a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:52, skipping insertion in model container [2023-11-06 22:27:52,296 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:27:52" (1/1) ... [2023-11-06 22:27:52,450 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:27:53,886 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2023-11-06 22:27:55,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:27:55,268 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:27:55,393 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"); [3760] [2023-11-06 22:27:55,396 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3794-3795] [2023-11-06 22:27:55,397 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3798-3799] [2023-11-06 22:27:55,397 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3802-3803] [2023-11-06 22:27:55,398 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3806-3807] [2023-11-06 22:27:55,410 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2023-11-06 22:27:55,733 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)); [7459] [2023-11-06 22:27:55,734 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7466] [2023-11-06 22:27:55,734 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 %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [7475-7476] [2023-11-06 22:27:55,735 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 %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [7492-7493] [2023-11-06 22:27:55,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [7507-7508] [2023-11-06 22:27:55,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [7521] [2023-11-06 22:27:55,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7524] [2023-11-06 22:27:55,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7527] [2023-11-06 22:27:55,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7530] [2023-11-06 22:27:55,739 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& kernel_stack)); [7547] [2023-11-06 22:27:55,740 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [7550] [2023-11-06 22:27:55,740 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [7553] [2023-11-06 22:27:55,740 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [7556] [2023-11-06 22:27:55,879 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:27:56,075 WARN L672 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:27:56,076 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:27:56,076 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:27:56,084 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:27:56,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:56 WrapperNode [2023-11-06 22:27:56,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:27:56,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:27:56,086 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:27:56,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:27:56,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:56" (1/1) ... [2023-11-06 22:27:56,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:56" (1/1) ... [2023-11-06 22:27:56,477 INFO L138 Inliner]: procedures = 371, calls = 3106, calls flagged for inlining = 200, calls inlined = 181, statements flattened = 6466 [2023-11-06 22:27:56,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:27:56,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:27:56,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:27:56,479 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:27:56,489 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:56" (1/1) ... [2023-11-06 22:27:56,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:56" (1/1) ... [2023-11-06 22:27:56,539 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:56" (1/1) ... [2023-11-06 22:27:56,556 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:56" (1/1) ... [2023-11-06 22:27:56,734 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:56" (1/1) ... [2023-11-06 22:27:56,833 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:56" (1/1) ... [2023-11-06 22:27:56,889 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:56" (1/1) ... [2023-11-06 22:27:56,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:56" (1/1) ... [2023-11-06 22:27:56,974 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:27:56,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:27:56,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:27:56,976 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:27:56,977 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:56" (1/1) ... [2023-11-06 22:27:56,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:27:56,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:27:57,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:27:57,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c414062-4b8c-4a2e-9930-6106dd1a7d73/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:27:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2023-11-06 22:27:57,062 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2023-11-06 22:27:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2023-11-06 22:27:57,063 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2023-11-06 22:27:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2023-11-06 22:27:57,063 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2023-11-06 22:27:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2023-11-06 22:27:57,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2023-11-06 22:27:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-06 22:27:57,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-06 22:27:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_14 [2023-11-06 22:27:57,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_14 [2023-11-06 22:27:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2023-11-06 22:27:57,066 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2023-11-06 22:27:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-06 22:27:57,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-06 22:27:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-11-06 22:27:57,069 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-11-06 22:27:57,070 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2023-11-06 22:27:57,070 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2023-11-06 22:27:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2023-11-06 22:27:57,071 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2023-11-06 22:27:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2023-11-06 22:27:57,071 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2023-11-06 22:27:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-11-06 22:27:57,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-11-06 22:27:57,072 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2023-11-06 22:27:57,072 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2023-11-06 22:27:57,072 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-06 22:27:57,072 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-06 22:27:57,072 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-06 22:27:57,073 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-06 22:27:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2023-11-06 22:27:57,073 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2023-11-06 22:27:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-06 22:27:57,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-06 22:27:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-06 22:27:57,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-06 22:27:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-11-06 22:27:57,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-11-06 22:27:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2023-11-06 22:27:57,074 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2023-11-06 22:27:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2023-11-06 22:27:57,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2023-11-06 22:27:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2023-11-06 22:27:57,075 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2023-11-06 22:27:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2023-11-06 22:27:57,076 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2023-11-06 22:27:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2023-11-06 22:27:57,077 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2023-11-06 22:27:57,078 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-06 22:27:57,078 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-06 22:27:57,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-06 22:27:57,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-06 22:27:57,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2023-11-06 22:27:57,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2023-11-06 22:27:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2023-11-06 22:27:57,080 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2023-11-06 22:27:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2023-11-06 22:27:57,080 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2023-11-06 22:27:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-06 22:27:57,081 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-06 22:27:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2023-11-06 22:27:57,081 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2023-11-06 22:27:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-06 22:27:57,081 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-06 22:27:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:27:57,082 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:27:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2023-11-06 22:27:57,082 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2023-11-06 22:27:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2023-11-06 22:27:57,083 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2023-11-06 22:27:57,083 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2023-11-06 22:27:57,084 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2023-11-06 22:27:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2023-11-06 22:27:57,084 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2023-11-06 22:27:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2023-11-06 22:27:57,084 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2023-11-06 22:27:57,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___2 [2023-11-06 22:27:57,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___2 [2023-11-06 22:27:57,085 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2023-11-06 22:27:57,085 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2023-11-06 22:27:57,085 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-06 22:27:57,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-06 22:27:57,086 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-06 22:27:57,086 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-06 22:27:57,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:27:57,086 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-06 22:27:57,086 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-06 22:27:57,087 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-06 22:27:57,087 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2023-11-06 22:27:57,087 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2023-11-06 22:27:57,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2023-11-06 22:27:57,087 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2023-11-06 22:27:57,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2023-11-06 22:27:57,088 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2023-11-06 22:27:57,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2023-11-06 22:27:57,089 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2023-11-06 22:27:57,089 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-11-06 22:27:57,089 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-11-06 22:27:57,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:27:57,090 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-06 22:27:57,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-06 22:27:57,090 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-06 22:27:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2023-11-06 22:27:57,091 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2023-11-06 22:27:57,092 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2023-11-06 22:27:57,092 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2023-11-06 22:27:57,092 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-06 22:27:57,092 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-06 22:27:57,092 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-06 22:27:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-06 22:27:57,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2023-11-06 22:27:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2023-11-06 22:27:57,093 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2023-11-06 22:27:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2023-11-06 22:27:57,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:27:57,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:27:57,094 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-06 22:27:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-06 22:27:57,094 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-06 22:27:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-06 22:27:57,095 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2023-11-06 22:27:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2023-11-06 22:27:57,095 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-06 22:27:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-06 22:27:57,096 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-11-06 22:27:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-11-06 22:27:57,096 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-06 22:27:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-06 22:27:57,096 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2023-11-06 22:27:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2023-11-06 22:27:57,098 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2023-11-06 22:27:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2023-11-06 22:27:57,099 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-06 22:27:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-06 22:27:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-06 22:27:57,103 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-06 22:27:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-06 22:27:57,104 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-06 22:27:57,104 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2023-11-06 22:27:57,105 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2023-11-06 22:27:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2023-11-06 22:27:57,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2023-11-06 22:27:57,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2023-11-06 22:27:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2023-11-06 22:27:57,112 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-06 22:27:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-06 22:27:57,112 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2023-11-06 22:27:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2023-11-06 22:27:57,112 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_bulk_callback [2023-11-06 22:27:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_bulk_callback [2023-11-06 22:27:57,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-06 22:27:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-06 22:27:57,113 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2023-11-06 22:27:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2023-11-06 22:27:57,113 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-06 22:27:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-06 22:27:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2023-11-06 22:27:57,114 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2023-11-06 22:27:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-06 22:27:57,114 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-06 22:27:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2023-11-06 22:27:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2023-11-06 22:27:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2023-11-06 22:27:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2023-11-06 22:27:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2023-11-06 22:27:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2023-11-06 22:27:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2023-11-06 22:27:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2023-11-06 22:27:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:27:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-11-06 22:27:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-11-06 22:27:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-06 22:27:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-06 22:27:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2023-11-06 22:27:57,117 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2023-11-06 22:27:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-06 22:27:57,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-06 22:27:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2023-11-06 22:27:57,117 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2023-11-06 22:27:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2023-11-06 22:27:57,118 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2023-11-06 22:27:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-06 22:27:57,118 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-06 22:27:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-06 22:27:57,118 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-06 22:27:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2023-11-06 22:27:57,119 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2023-11-06 22:27:57,119 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2023-11-06 22:27:57,119 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2023-11-06 22:27:57,119 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-06 22:27:57,119 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-06 22:27:57,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_41 [2023-11-06 22:27:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_41 [2023-11-06 22:27:57,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_42 [2023-11-06 22:27:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_42 [2023-11-06 22:27:57,120 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-11-06 22:27:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-11-06 22:27:57,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:27:57,121 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2023-11-06 22:27:57,121 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2023-11-06 22:27:57,121 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-06 22:27:57,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-06 22:27:57,121 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2023-11-06 22:27:57,121 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2023-11-06 22:27:57,121 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2023-11-06 22:27:57,122 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2023-11-06 22:27:57,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-06 22:27:57,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-06 22:27:57,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2023-11-06 22:27:57,122 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2023-11-06 22:27:57,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2023-11-06 22:27:57,123 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2023-11-06 22:27:57,123 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2023-11-06 22:27:57,123 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2023-11-06 22:27:57,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:27:57,123 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2023-11-06 22:27:57,123 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2023-11-06 22:27:57,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:27:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-06 22:27:57,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-06 22:27:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:27:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-06 22:27:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_18 [2023-11-06 22:27:57,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_18 [2023-11-06 22:27:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_4 [2023-11-06 22:27:57,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_4 [2023-11-06 22:27:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 22:27:57,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 22:27:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-06 22:27:57,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-06 22:27:57,126 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2023-11-06 22:27:57,126 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2023-11-06 22:27:57,126 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-06 22:27:57,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-06 22:27:57,126 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-11-06 22:27:57,126 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-11-06 22:27:57,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_22 [2023-11-06 22:27:57,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_22 [2023-11-06 22:27:57,127 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2023-11-06 22:27:57,127 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2023-11-06 22:27:57,127 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2023-11-06 22:27:57,127 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2023-11-06 22:27:57,127 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2023-11-06 22:27:57,128 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2023-11-06 22:27:57,128 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2023-11-06 22:27:57,128 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2023-11-06 22:27:57,128 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-06 22:27:57,128 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-06 22:27:57,128 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2023-11-06 22:27:57,129 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2023-11-06 22:27:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-06 22:27:57,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-06 22:27:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2023-11-06 22:27:57,129 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2023-11-06 22:27:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-06 22:27:57,130 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-06 22:27:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-11-06 22:27:57,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-11-06 22:27:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:27:57,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:27:57,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:27:57,135 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2023-11-06 22:27:57,135 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2023-11-06 22:27:57,136 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2023-11-06 22:27:57,136 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2023-11-06 22:27:57,136 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-06 22:27:57,136 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-06 22:27:58,141 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:27:58,147 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:27:58,768 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-06 22:27:59,824 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___2FINAL: assume true; [2023-11-06 22:28:08,754 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:28:08,789 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:28:08,789 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:28:08,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:28:08 BoogieIcfgContainer [2023-11-06 22:28:08,796 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:28:08,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:28:08,800 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:28:08,804 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:28:08,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:27:52" (1/3) ... [2023-11-06 22:28:08,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de5eb9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:28:08, skipping insertion in model container [2023-11-06 22:28:08,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:56" (2/3) ... [2023-11-06 22:28:08,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de5eb9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:28:08, skipping insertion in model container [2023-11-06 22:28:08,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:28:08" (3/3) ... [2023-11-06 22:28:08,810 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2023-11-06 22:28:08,834 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:28:08,834 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:28:08,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:28:08,990 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@713e3797, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:28:08,990 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:28:09,005 INFO L276 IsEmpty]: Start isEmpty. Operand has 2245 states, 1589 states have (on average 1.3272498426683448) internal successors, (2109), 1630 states have internal predecessors, (2109), 529 states have call successors, (529), 127 states have call predecessors, (529), 125 states have return successors, (515), 504 states have call predecessors, (515), 515 states have call successors, (515) [2023-11-06 22:28:09,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:28:09,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:28:09,028 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-06 22:28:09,029 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:28:09,033 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:09,034 INFO L85 PathProgramCache]: Analyzing trace with hash -310888403, now seen corresponding path program 1 times [2023-11-06 22:28:09,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:09,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171200270] [2023-11-06 22:28:09,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:09,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:10,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:28:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:10,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:28:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:10,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:28:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:10,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:28:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:10,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:28:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:10,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:28:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:10,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:28:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:10,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:28:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:10,387 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-06 22:28:10,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:10,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171200270] [2023-11-06 22:28:10,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171200270] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:10,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:10,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:28:10,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473206031] [2023-11-06 22:28:10,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:10,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:28:10,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:10,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:28:10,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:28:10,461 INFO L87 Difference]: Start difference. First operand has 2245 states, 1589 states have (on average 1.3272498426683448) internal successors, (2109), 1630 states have internal predecessors, (2109), 529 states have call successors, (529), 127 states have call predecessors, (529), 125 states have return successors, (515), 504 states have call predecessors, (515), 515 states have call successors, (515) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-06 22:28:15,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:22,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:28:22,961 INFO L93 Difference]: Finished difference Result 7103 states and 10448 transitions. [2023-11-06 22:28:22,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:28:22,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2023-11-06 22:28:22,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:28:23,030 INFO L225 Difference]: With dead ends: 7103 [2023-11-06 22:28:23,031 INFO L226 Difference]: Without dead ends: 4826 [2023-11-06 22:28:23,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:28:23,058 INFO L413 NwaCegarLoop]: 2591 mSDtfsCounter, 4261 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 1481 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4648 SdHoareTripleChecker+Valid, 6306 SdHoareTripleChecker+Invalid, 3562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1481 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:28:23,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4648 Valid, 6306 Invalid, 3562 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1481 Valid, 2080 Invalid, 1 Unknown, 0 Unchecked, 11.7s Time] [2023-11-06 22:28:23,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4826 states. [2023-11-06 22:28:23,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4826 to 4316. [2023-11-06 22:28:23,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4316 states, 3081 states have (on average 1.318078545926647) internal successors, (4061), 3124 states have internal predecessors, (4061), 989 states have call successors, (989), 246 states have call predecessors, (989), 245 states have return successors, (982), 960 states have call predecessors, (982), 982 states have call successors, (982) [2023-11-06 22:28:23,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4316 states to 4316 states and 6032 transitions. [2023-11-06 22:28:23,588 INFO L78 Accepts]: Start accepts. Automaton has 4316 states and 6032 transitions. Word has length 69 [2023-11-06 22:28:23,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:28:23,590 INFO L495 AbstractCegarLoop]: Abstraction has 4316 states and 6032 transitions. [2023-11-06 22:28:23,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-06 22:28:23,591 INFO L276 IsEmpty]: Start isEmpty. Operand 4316 states and 6032 transitions. [2023-11-06 22:28:23,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-06 22:28:23,610 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:28:23,610 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-06 22:28:23,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:28:23,612 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:28:23,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:23,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1656963247, now seen corresponding path program 1 times [2023-11-06 22:28:23,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:23,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235603603] [2023-11-06 22:28:23,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:23,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:24,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:28:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:24,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:28:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:24,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:28:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:24,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:28:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:24,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:28:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:24,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:28:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:24,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:28:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:24,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:28:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:24,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-06 22:28:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:24,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-06 22:28:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:24,300 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-06 22:28:24,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:24,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235603603] [2023-11-06 22:28:24,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235603603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:24,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:24,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:28:24,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003681953] [2023-11-06 22:28:24,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:24,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:28:24,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:24,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:28:24,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:28:24,309 INFO L87 Difference]: Start difference. First operand 4316 states and 6032 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:28:28,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:35,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:38,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:28:38,652 INFO L93 Difference]: Finished difference Result 13538 states and 19122 transitions. [2023-11-06 22:28:38,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:28:38,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 88 [2023-11-06 22:28:38,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:28:38,739 INFO L225 Difference]: With dead ends: 13538 [2023-11-06 22:28:38,740 INFO L226 Difference]: Without dead ends: 9243 [2023-11-06 22:28:38,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:28:38,767 INFO L413 NwaCegarLoop]: 2574 mSDtfsCounter, 4045 mSDsluCounter, 3628 mSDsCounter, 0 mSdLazyCounter, 2158 mSolverCounterSat, 1433 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4436 SdHoareTripleChecker+Valid, 6202 SdHoareTripleChecker+Invalid, 3593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1433 IncrementalHoareTripleChecker+Valid, 2158 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:28:38,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4436 Valid, 6202 Invalid, 3593 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1433 Valid, 2158 Invalid, 2 Unknown, 0 Unchecked, 13.5s Time] [2023-11-06 22:28:38,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9243 states. [2023-11-06 22:28:39,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9243 to 8186. [2023-11-06 22:28:39,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8186 states, 5846 states have (on average 1.3126924392747177) internal successors, (7674), 5927 states have internal predecessors, (7674), 1863 states have call successors, (1863), 477 states have call predecessors, (1863), 476 states have return successors, (1856), 1811 states have call predecessors, (1856), 1856 states have call successors, (1856) [2023-11-06 22:28:39,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8186 states to 8186 states and 11393 transitions. [2023-11-06 22:28:39,346 INFO L78 Accepts]: Start accepts. Automaton has 8186 states and 11393 transitions. Word has length 88 [2023-11-06 22:28:39,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:28:39,348 INFO L495 AbstractCegarLoop]: Abstraction has 8186 states and 11393 transitions. [2023-11-06 22:28:39,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:28:39,349 INFO L276 IsEmpty]: Start isEmpty. Operand 8186 states and 11393 transitions. [2023-11-06 22:28:39,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:28:39,356 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:28:39,356 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-06 22:28:39,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:28:39,356 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:28:39,357 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:39,357 INFO L85 PathProgramCache]: Analyzing trace with hash 804007024, now seen corresponding path program 1 times [2023-11-06 22:28:39,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:39,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132477996] [2023-11-06 22:28:39,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:39,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:40,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:28:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:40,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:28:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:40,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:28:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:40,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:28:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:40,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:28:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:40,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:28:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:40,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:28:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:40,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:28:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:40,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:28:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:40,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-06 22:28:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:40,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:28:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:40,447 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-06 22:28:40,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:40,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132477996] [2023-11-06 22:28:40,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132477996] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:40,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:40,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:28:40,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961309781] [2023-11-06 22:28:40,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:40,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:28:40,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:40,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:28:40,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:28:40,450 INFO L87 Difference]: Start difference. First operand 8186 states and 11393 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:28:50,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:28:50,794 INFO L93 Difference]: Finished difference Result 27735 states and 40740 transitions. [2023-11-06 22:28:50,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:28:50,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 92 [2023-11-06 22:28:50,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:28:50,982 INFO L225 Difference]: With dead ends: 27735 [2023-11-06 22:28:50,983 INFO L226 Difference]: Without dead ends: 19570 [2023-11-06 22:28:51,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:28:51,078 INFO L413 NwaCegarLoop]: 2629 mSDtfsCounter, 6199 mSDsluCounter, 4039 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 2998 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6574 SdHoareTripleChecker+Valid, 6668 SdHoareTripleChecker+Invalid, 5025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2998 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:28:51,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6574 Valid, 6668 Invalid, 5025 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2998 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-11-06 22:28:51,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19570 states. [2023-11-06 22:28:52,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19570 to 17574. [2023-11-06 22:28:52,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17574 states, 12602 states have (on average 1.3090779241390256) internal successors, (16497), 12758 states have internal predecessors, (16497), 3887 states have call successors, (3887), 953 states have call predecessors, (3887), 1084 states have return successors, (4842), 3930 states have call predecessors, (4842), 3880 states have call successors, (4842) [2023-11-06 22:28:52,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17574 states to 17574 states and 25226 transitions. [2023-11-06 22:28:52,515 INFO L78 Accepts]: Start accepts. Automaton has 17574 states and 25226 transitions. Word has length 92 [2023-11-06 22:28:52,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:28:52,518 INFO L495 AbstractCegarLoop]: Abstraction has 17574 states and 25226 transitions. [2023-11-06 22:28:52,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:28:52,519 INFO L276 IsEmpty]: Start isEmpty. Operand 17574 states and 25226 transitions. [2023-11-06 22:28:52,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-06 22:28:52,527 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:28:52,527 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-06 22:28:52,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:28:52,527 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:28:52,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:52,528 INFO L85 PathProgramCache]: Analyzing trace with hash -847158491, now seen corresponding path program 1 times [2023-11-06 22:28:52,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:52,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818399859] [2023-11-06 22:28:52,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:52,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:53,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:28:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:53,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:28:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:53,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:28:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:53,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:28:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:53,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:28:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:53,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:28:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:53,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:28:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:53,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:28:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:53,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:28:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:53,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-06 22:28:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:53,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:28:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:53,417 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-06 22:28:53,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:53,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818399859] [2023-11-06 22:28:53,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818399859] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:53,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:53,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:28:53,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948919076] [2023-11-06 22:28:53,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:53,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:28:53,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:53,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:28:53,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:28:53,422 INFO L87 Difference]: Start difference. First operand 17574 states and 25226 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:28:58,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:07,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:29:07,439 INFO L93 Difference]: Finished difference Result 56615 states and 86191 transitions. [2023-11-06 22:29:07,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:29:07,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 93 [2023-11-06 22:29:07,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:29:07,921 INFO L225 Difference]: With dead ends: 56615 [2023-11-06 22:29:07,921 INFO L226 Difference]: Without dead ends: 39062 [2023-11-06 22:29:08,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:29:08,050 INFO L413 NwaCegarLoop]: 2624 mSDtfsCounter, 4815 mSDsluCounter, 5341 mSDsCounter, 0 mSdLazyCounter, 2691 mSolverCounterSat, 1665 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5198 SdHoareTripleChecker+Valid, 7965 SdHoareTripleChecker+Invalid, 4357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1665 IncrementalHoareTripleChecker+Valid, 2691 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:29:08,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5198 Valid, 7965 Invalid, 4357 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1665 Valid, 2691 Invalid, 1 Unknown, 0 Unchecked, 11.8s Time] [2023-11-06 22:29:08,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39062 states. [2023-11-06 22:29:11,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39062 to 35551. [2023-11-06 22:29:11,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35551 states, 25491 states have (on average 1.3063826448550468) internal successors, (33301), 25789 states have internal predecessors, (33301), 7831 states have call successors, (7831), 1905 states have call predecessors, (7831), 2228 states have return successors, (11318), 7992 states have call predecessors, (11318), 7824 states have call successors, (11318) [2023-11-06 22:29:11,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35551 states to 35551 states and 52450 transitions. [2023-11-06 22:29:11,374 INFO L78 Accepts]: Start accepts. Automaton has 35551 states and 52450 transitions. Word has length 93 [2023-11-06 22:29:11,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:29:11,375 INFO L495 AbstractCegarLoop]: Abstraction has 35551 states and 52450 transitions. [2023-11-06 22:29:11,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:29:11,375 INFO L276 IsEmpty]: Start isEmpty. Operand 35551 states and 52450 transitions. [2023-11-06 22:29:11,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-06 22:29:11,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:29:11,387 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-06 22:29:11,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:29:11,387 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:29:11,387 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:29:11,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1793320121, now seen corresponding path program 1 times [2023-11-06 22:29:11,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:29:11,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929474453] [2023-11-06 22:29:11,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:29:11,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:29:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:11,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:29:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:11,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:29:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:11,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:29:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:11,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:29:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:11,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:29:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:12,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:29:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:12,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:29:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:12,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:29:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:12,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:29:12,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:12,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:12,245 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-06 22:29:12,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:29:12,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929474453] [2023-11-06 22:29:12,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929474453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:29:12,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:29:12,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:29:12,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529680683] [2023-11-06 22:29:12,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:29:12,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:29:12,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:29:12,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:29:12,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:29:12,249 INFO L87 Difference]: Start difference. First operand 35551 states and 52450 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:29:15,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:23,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:37,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:29:37,249 INFO L93 Difference]: Finished difference Result 134127 states and 213610 transitions. [2023-11-06 22:29:37,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:29:37,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 96 [2023-11-06 22:29:37,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:29:38,464 INFO L225 Difference]: With dead ends: 134127 [2023-11-06 22:29:38,465 INFO L226 Difference]: Without dead ends: 98597 [2023-11-06 22:29:38,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:29:38,705 INFO L413 NwaCegarLoop]: 2312 mSDtfsCounter, 7727 mSDsluCounter, 4498 mSDsCounter, 0 mSdLazyCounter, 4093 mSolverCounterSat, 4286 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8260 SdHoareTripleChecker+Valid, 6810 SdHoareTripleChecker+Invalid, 8381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4286 IncrementalHoareTripleChecker+Valid, 4093 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:29:38,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8260 Valid, 6810 Invalid, 8381 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4286 Valid, 4093 Invalid, 2 Unknown, 0 Unchecked, 18.1s Time] [2023-11-06 22:29:38,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98597 states. [2023-11-06 22:29:46,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98597 to 90303. [2023-11-06 22:29:47,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90303 states, 64695 states have (on average 1.2940876420125202) internal successors, (83721), 65001 states have internal predecessors, (83721), 19819 states have call successors, (19819), 3745 states have call predecessors, (19819), 5788 states have return successors, (40580), 21884 states have call predecessors, (40580), 19812 states have call successors, (40580) [2023-11-06 22:29:48,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90303 states to 90303 states and 144120 transitions. [2023-11-06 22:29:48,647 INFO L78 Accepts]: Start accepts. Automaton has 90303 states and 144120 transitions. Word has length 96 [2023-11-06 22:29:48,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:29:48,648 INFO L495 AbstractCegarLoop]: Abstraction has 90303 states and 144120 transitions. [2023-11-06 22:29:48,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:29:48,649 INFO L276 IsEmpty]: Start isEmpty. Operand 90303 states and 144120 transitions. [2023-11-06 22:29:48,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-06 22:29:48,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:29:48,654 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-06 22:29:48,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:29:48,655 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:29:48,655 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:29:48,655 INFO L85 PathProgramCache]: Analyzing trace with hash -493677037, now seen corresponding path program 1 times [2023-11-06 22:29:48,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:29:48,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221802564] [2023-11-06 22:29:48,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:29:48,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:29:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:29:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:29:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:29:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:29:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:29:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:29:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:29:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:29:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:29:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-06 22:29:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,176 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-06 22:29:49,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:29:49,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221802564] [2023-11-06 22:29:49,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221802564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:29:49,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:29:49,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:29:49,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106749082] [2023-11-06 22:29:49,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:29:49,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:29:49,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:29:49,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:29:49,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:29:49,179 INFO L87 Difference]: Start difference. First operand 90303 states and 144120 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:30:03,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:30:03,947 INFO L93 Difference]: Finished difference Result 97788 states and 159260 transitions. [2023-11-06 22:30:03,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:30:03,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2023-11-06 22:30:03,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:30:04,878 INFO L225 Difference]: With dead ends: 97788 [2023-11-06 22:30:04,878 INFO L226 Difference]: Without dead ends: 97785 [2023-11-06 22:30:04,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:30:04,936 INFO L413 NwaCegarLoop]: 2635 mSDtfsCounter, 6195 mSDsluCounter, 4044 mSDsCounter, 0 mSdLazyCounter, 2021 mSolverCounterSat, 2987 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6579 SdHoareTripleChecker+Valid, 6679 SdHoareTripleChecker+Invalid, 5008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2987 IncrementalHoareTripleChecker+Valid, 2021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:30:04,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6579 Valid, 6679 Invalid, 5008 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2987 Valid, 2021 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2023-11-06 22:30:05,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97785 states. [2023-11-06 22:30:11,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97785 to 90304. [2023-11-06 22:30:11,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90304 states, 64696 states have (on average 1.294083096327439) internal successors, (83722), 65002 states have internal predecessors, (83722), 19819 states have call successors, (19819), 3745 states have call predecessors, (19819), 5788 states have return successors, (40580), 21884 states have call predecessors, (40580), 19812 states have call successors, (40580) [2023-11-06 22:30:12,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90304 states to 90304 states and 144121 transitions. [2023-11-06 22:30:12,332 INFO L78 Accepts]: Start accepts. Automaton has 90304 states and 144121 transitions. Word has length 94 [2023-11-06 22:30:12,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:30:12,333 INFO L495 AbstractCegarLoop]: Abstraction has 90304 states and 144121 transitions. [2023-11-06 22:30:12,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:30:12,333 INFO L276 IsEmpty]: Start isEmpty. Operand 90304 states and 144121 transitions. [2023-11-06 22:30:12,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-06 22:30:12,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:30:12,338 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-06 22:30:12,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:30:12,339 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:30:12,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:30:12,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1874318312, now seen corresponding path program 1 times [2023-11-06 22:30:12,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:30:12,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532384604] [2023-11-06 22:30:12,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:12,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:30:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:12,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:30:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:12,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:30:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:12,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:30:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:12,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:30:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:12,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:30:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:12,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:30:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:12,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:30:12,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:12,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:30:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:12,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:30:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:12,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-06 22:30:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:12,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:12,841 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-06 22:30:12,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:30:12,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532384604] [2023-11-06 22:30:12,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532384604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:30:12,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:30:12,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:30:12,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356946929] [2023-11-06 22:30:12,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:30:12,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:30:12,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:30:12,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:30:12,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:30:12,845 INFO L87 Difference]: Start difference. First operand 90304 states and 144121 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11)