./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ac653d5d4bd645822c87d49861fb2a5e304e57a9bdc7e425845f1dc10a0731d2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:47:33,141 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:47:33,214 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:47:33,220 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:47:33,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:47:33,257 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:47:33,258 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:47:33,259 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:47:33,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:47:33,262 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:47:33,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:47:33,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:47:33,264 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:47:33,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:47:33,265 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:47:33,265 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:47:33,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:47:33,266 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:47:33,267 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:47:33,277 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:47:33,277 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:47:33,278 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:47:33,279 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:47:33,279 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:47:33,279 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:47:33,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:33,280 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:47:33,281 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:47:33,281 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:47:33,282 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:47:33,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:47:33,283 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:47:33,283 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:47:33,284 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:47:33,284 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:47:33,284 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:47:33,284 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_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac653d5d4bd645822c87d49861fb2a5e304e57a9bdc7e425845f1dc10a0731d2 [2023-11-19 07:47:33,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:47:33,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:47:33,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:47:33,574 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:47:33,575 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:47:33,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i [2023-11-19 07:47:36,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:47:37,436 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:47:37,437 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i [2023-11-19 07:47:37,501 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/bin/uautomizer-verify-uCwYo4JHxu/data/0180d4cc8/61c54f6bcb0640b48d42300a694c40c7/FLAG74b3a32f4 [2023-11-19 07:47:37,741 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/bin/uautomizer-verify-uCwYo4JHxu/data/0180d4cc8/61c54f6bcb0640b48d42300a694c40c7 [2023-11-19 07:47:37,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:47:37,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:47:37,747 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:37,747 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:47:37,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:47:37,754 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:37" (1/1) ... [2023-11-19 07:47:37,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@542ccdac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:37, skipping insertion in model container [2023-11-19 07:47:37,763 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:37" (1/1) ... [2023-11-19 07:47:37,959 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:47:40,356 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_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i[258672,258685] [2023-11-19 07:47:40,464 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:40,501 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:47:40,584 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"); [3515] [2023-11-19 07:47:40,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; subl %2,%0; sete %1": "+m" (v->counter), "=qm" (c): "ir" (i): "memory"); [3563-3564] [2023-11-19 07:47:40,588 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"); [3575-3576] [2023-11-19 07:47:40,589 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"); [3579-3580] [2023-11-19 07:47:40,589 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"); [3583-3584] [2023-11-19 07:47:40,590 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"); [3587-3588] [2023-11-19 07:47:40,861 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)); [6907] [2023-11-19 07:47:40,861 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6914] [2023-11-19 07:47:40,862 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"); [6923-6924] [2023-11-19 07:47:40,862 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"); [6940-6941] [2023-11-19 07:47:40,863 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)); [6955-6956] [2023-11-19 07:47:40,864 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [6969] [2023-11-19 07:47:40,864 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6972] [2023-11-19 07:47:40,865 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6975] [2023-11-19 07:47:40,865 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6978] [2023-11-19 07:47:40,866 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& kernel_stack)); [7000] [2023-11-19 07:47:40,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [7003] [2023-11-19 07:47:40,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [7006] [2023-11-19 07:47:40,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [7009] [2023-11-19 07:47:40,941 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_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i[258672,258685] [2023-11-19 07:47:40,956 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:41,155 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:47:41,156 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:47:41,156 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:47:41,164 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:47:41,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:41 WrapperNode [2023-11-19 07:47:41,165 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:41,166 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:41,167 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:47:41,167 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:47:41,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:41" (1/1) ... [2023-11-19 07:47:41,270 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:41" (1/1) ... [2023-11-19 07:47:41,549 INFO L138 Inliner]: procedures = 373, calls = 3058, calls flagged for inlining = 174, calls inlined = 166, statements flattened = 6105 [2023-11-19 07:47:41,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:41,550 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:47:41,550 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:47:41,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:47:41,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:41" (1/1) ... [2023-11-19 07:47:41,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:41" (1/1) ... [2023-11-19 07:47:41,624 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:41" (1/1) ... [2023-11-19 07:47:41,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:41" (1/1) ... [2023-11-19 07:47:41,794 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:41" (1/1) ... [2023-11-19 07:47:41,829 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:41" (1/1) ... [2023-11-19 07:47:41,858 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:41" (1/1) ... [2023-11-19 07:47:41,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:41" (1/1) ... [2023-11-19 07:47:41,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:47:41,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:47:41,926 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:47:41,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:47:41,927 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:41" (1/1) ... [2023-11-19 07:47:41,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:41,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:41,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:42,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab9fbb94-1619-4cc8-833e-3ede9d5a1233/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:47:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2023-11-19 07:47:42,008 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2023-11-19 07:47:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2023-11-19 07:47:42,009 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2023-11-19 07:47:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2023-11-19 07:47:42,009 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2023-11-19 07:47:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2023-11-19 07:47:42,010 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2023-11-19 07:47:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-19 07:47:42,010 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-19 07:47:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-19 07:47:42,010 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-19 07:47:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-19 07:47:42,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-19 07:47:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-19 07:47:42,011 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-19 07:47:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2023-11-19 07:47:42,011 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2023-11-19 07:47:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-11-19 07:47:42,012 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-11-19 07:47:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2023-11-19 07:47:42,012 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2023-11-19 07:47:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2023-11-19 07:47:42,013 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2023-11-19 07:47:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2023-11-19 07:47:42,013 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2023-11-19 07:47:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2023-11-19 07:47:42,013 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2023-11-19 07:47:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:47:42,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:47:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-19 07:47:42,014 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-19 07:47:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2023-11-19 07:47:42,014 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2023-11-19 07:47:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2023-11-19 07:47:42,014 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2023-11-19 07:47:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2023-11-19 07:47:42,015 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2023-11-19 07:47:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2023-11-19 07:47:42,015 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2023-11-19 07:47:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:47:42,015 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:47:42,016 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-19 07:47:42,016 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-19 07:47:42,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:47:42,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:47:42,016 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2023-11-19 07:47:42,016 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2023-11-19 07:47:42,017 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2023-11-19 07:47:42,017 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2023-11-19 07:47:42,017 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-19 07:47:42,017 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-19 07:47:42,017 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2023-11-19 07:47:42,017 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2023-11-19 07:47:42,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-19 07:47:42,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-19 07:47:42,018 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 07:47:42,018 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 07:47:42,018 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_get_by_index [2023-11-19 07:47:42,018 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_get_by_index [2023-11-19 07:47:42,019 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2023-11-19 07:47:42,019 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2023-11-19 07:47:42,019 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2023-11-19 07:47:42,019 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2023-11-19 07:47:42,019 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2023-11-19 07:47:42,019 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2023-11-19 07:47:42,020 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2023-11-19 07:47:42,020 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2023-11-19 07:47:42,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2023-11-19 07:47:42,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2023-11-19 07:47:42,020 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 07:47:42,020 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 07:47:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2023-11-19 07:47:42,021 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2023-11-19 07:47:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 07:47:42,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 07:47:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 07:47:42,021 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 07:47:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:47:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 07:47:42,022 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 07:47:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2023-11-19 07:47:42,022 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2023-11-19 07:47:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2023-11-19 07:47:42,023 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2023-11-19 07:47:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2023-11-19 07:47:42,023 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2023-11-19 07:47:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2023-11-19 07:47:42,023 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2023-11-19 07:47:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-11-19 07:47:42,024 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-11-19 07:47:42,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2023-11-19 07:47:42,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2023-11-19 07:47:42,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:47:42,024 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 07:47:42,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 07:47:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-19 07:47:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2023-11-19 07:47:42,025 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2023-11-19 07:47:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2023-11-19 07:47:42,025 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2023-11-19 07:47:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 07:47:42,026 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 07:47:42,026 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2023-11-19 07:47:42,026 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2023-11-19 07:47:42,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:47:42,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:47:42,026 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:47:42,027 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:47:42,027 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 07:47:42,027 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 07:47:42,027 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2023-11-19 07:47:42,027 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2023-11-19 07:47:42,027 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 07:47:42,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 07:47:42,028 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-19 07:47:42,028 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-19 07:47:42,028 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2023-11-19 07:47:42,028 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2023-11-19 07:47:42,028 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-11-19 07:47:42,028 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-11-19 07:47:42,029 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 07:47:42,029 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 07:47:42,029 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2023-11-19 07:47:42,029 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2023-11-19 07:47:42,029 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2023-11-19 07:47:42,029 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2023-11-19 07:47:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 07:47:42,030 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 07:47:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 07:47:42,030 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 07:47:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2023-11-19 07:47:42,030 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2023-11-19 07:47:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2023-11-19 07:47:42,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2023-11-19 07:47:42,031 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 07:47:42,031 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 07:47:42,031 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2023-11-19 07:47:42,031 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2023-11-19 07:47:42,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-19 07:47:42,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-19 07:47:42,032 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-19 07:47:42,032 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-19 07:47:42,032 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2023-11-19 07:47:42,032 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2023-11-19 07:47:42,032 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 07:47:42,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 07:47:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 07:47:42,033 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 07:47:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2023-11-19 07:47:42,033 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2023-11-19 07:47:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2023-11-19 07:47:42,034 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2023-11-19 07:47:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2023-11-19 07:47:42,034 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2023-11-19 07:47:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-11-19 07:47:42,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-11-19 07:47:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2023-11-19 07:47:42,034 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2023-11-19 07:47:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2023-11-19 07:47:42,035 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2023-11-19 07:47:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:47:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-11-19 07:47:42,035 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-11-19 07:47:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-19 07:47:42,035 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-19 07:47:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-19 07:47:42,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-19 07:47:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2023-11-19 07:47:42,036 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2023-11-19 07:47:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2023-11-19 07:47:42,036 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2023-11-19 07:47:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 07:47:42,037 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 07:47:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-19 07:47:42,037 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-19 07:47:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2023-11-19 07:47:42,037 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2023-11-19 07:47:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-11-19 07:47:42,037 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-11-19 07:47:42,038 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:47:42,038 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:47:42,038 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-11-19 07:47:42,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-11-19 07:47:42,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:47:42,038 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 07:47:42,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 07:47:42,039 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2023-11-19 07:47:42,039 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2023-11-19 07:47:42,039 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2023-11-19 07:47:42,039 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-19 07:47:42,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-19 07:47:42,039 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-19 07:47:42,039 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-19 07:47:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:47:42,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:47:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2023-11-19 07:47:42,040 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2023-11-19 07:47:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2023-11-19 07:47:42,040 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2023-11-19 07:47:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2023-11-19 07:47:42,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2023-11-19 07:47:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:47:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2023-11-19 07:47:42,041 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2023-11-19 07:47:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:47:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:47:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 07:47:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:47:42,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:47:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 07:47:42,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 07:47:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2023-11-19 07:47:42,042 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2023-11-19 07:47:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_table_lock [2023-11-19 07:47:42,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_table_lock [2023-11-19 07:47:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-19 07:47:42,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-19 07:47:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-11-19 07:47:42,043 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-11-19 07:47:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_table_lock [2023-11-19 07:47:42,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_table_lock [2023-11-19 07:47:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-19 07:47:42,044 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-19 07:47:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2023-11-19 07:47:42,044 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2023-11-19 07:47:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2023-11-19 07:47:42,045 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2023-11-19 07:47:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 07:47:42,045 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 07:47:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2023-11-19 07:47:42,045 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2023-11-19 07:47:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 07:47:42,045 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 07:47:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2023-11-19 07:47:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2023-11-19 07:47:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 07:47:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 07:47:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2023-11-19 07:47:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2023-11-19 07:47:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 07:47:42,047 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 07:47:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:47:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 07:47:42,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 07:47:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:47:42,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:47:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2023-11-19 07:47:42,048 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2023-11-19 07:47:42,048 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2023-11-19 07:47:42,048 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2023-11-19 07:47:43,028 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:47:43,033 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:47:54,230 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:47:54,254 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:47:54,254 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:47:54,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:54 BoogieIcfgContainer [2023-11-19 07:47:54,268 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:47:54,271 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:47:54,271 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:47:54,275 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:47:54,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:47:37" (1/3) ... [2023-11-19 07:47:54,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36dc1910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:54, skipping insertion in model container [2023-11-19 07:47:54,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:41" (2/3) ... [2023-11-19 07:47:54,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36dc1910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:54, skipping insertion in model container [2023-11-19 07:47:54,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:54" (3/3) ... [2023-11-19 07:47:54,278 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i [2023-11-19 07:47:54,298 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:47:54,298 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:47:54,393 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:47:54,401 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@24785de4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:47:54,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:47:54,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 2018 states, 1371 states have (on average 1.2939460247994166) internal successors, (1774), 1405 states have internal predecessors, (1774), 527 states have call successors, (527), 118 states have call predecessors, (527), 118 states have return successors, (527), 513 states have call predecessors, (527), 527 states have call successors, (527) [2023-11-19 07:47:54,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 07:47:54,423 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:54,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:54,425 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:54,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:54,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1747742094, now seen corresponding path program 1 times [2023-11-19 07:47:54,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:54,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374871119] [2023-11-19 07:47:54,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:54,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:55,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:47:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:55,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:47:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:55,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:47:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:55,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-19 07:47:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:55,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:55,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:55,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374871119] [2023-11-19 07:47:55,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374871119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:55,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:55,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:47:55,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886538237] [2023-11-19 07:47:55,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:55,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:47:55,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:55,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:47:55,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:47:55,579 INFO L87 Difference]: Start difference. First operand has 2018 states, 1371 states have (on average 1.2939460247994166) internal successors, (1774), 1405 states have internal predecessors, (1774), 527 states have call successors, (527), 118 states have call predecessors, (527), 118 states have return successors, (527), 513 states have call predecessors, (527), 527 states have call successors, (527) Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:48:16,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:16,181 INFO L93 Difference]: Finished difference Result 6418 states and 9457 transitions. [2023-11-19 07:48:16,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:48:16,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2023-11-19 07:48:16,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:16,256 INFO L225 Difference]: With dead ends: 6418 [2023-11-19 07:48:16,257 INFO L226 Difference]: Without dead ends: 4403 [2023-11-19 07:48:16,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:48:16,285 INFO L413 NwaCegarLoop]: 1056 mSDtfsCounter, 5922 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 5721 mSolverCounterSat, 3435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6320 SdHoareTripleChecker+Valid, 2784 SdHoareTripleChecker+Invalid, 9156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3435 IncrementalHoareTripleChecker+Valid, 5721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:16,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6320 Valid, 2784 Invalid, 9156 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3435 Valid, 5721 Invalid, 0 Unknown, 0 Unchecked, 19.4s Time] [2023-11-19 07:48:16,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4403 states. [2023-11-19 07:48:16,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4403 to 3863. [2023-11-19 07:48:16,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3863 states, 2637 states have (on average 1.280242700037922) internal successors, (3376), 2694 states have internal predecessors, (3376), 974 states have call successors, (974), 231 states have call predecessors, (974), 251 states have return successors, (1077), 956 states have call predecessors, (1077), 958 states have call successors, (1077) [2023-11-19 07:48:16,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3863 states to 3863 states and 5427 transitions. [2023-11-19 07:48:16,778 INFO L78 Accepts]: Start accepts. Automaton has 3863 states and 5427 transitions. Word has length 32 [2023-11-19 07:48:16,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:16,779 INFO L495 AbstractCegarLoop]: Abstraction has 3863 states and 5427 transitions. [2023-11-19 07:48:16,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:48:16,779 INFO L276 IsEmpty]: Start isEmpty. Operand 3863 states and 5427 transitions. [2023-11-19 07:48:16,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 07:48:16,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:16,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:16,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:48:16,783 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:16,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:16,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1656625002, now seen corresponding path program 1 times [2023-11-19 07:48:16,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:16,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222002126] [2023-11-19 07:48:16,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:16,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:17,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:48:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:17,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:48:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:17,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:48:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:17,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-19 07:48:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:17,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:17,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:17,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222002126] [2023-11-19 07:48:17,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222002126] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:17,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:17,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:48:17,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681462740] [2023-11-19 07:48:17,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:17,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:48:17,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:17,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:48:17,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:17,262 INFO L87 Difference]: Start difference. First operand 3863 states and 5427 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4)