./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_b51b568b-0810-4ed7-9f66-20468e05dad1/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b568b-0810-4ed7-9f66-20468e05dad1/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_b51b568b-0810-4ed7-9f66-20468e05dad1/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b568b-0810-4ed7-9f66-20468e05dad1/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b568b-0810-4ed7-9f66-20468e05dad1/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_b51b568b-0810-4ed7-9f66-20468e05dad1/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 ec1c916a4e8241683d3d78dd3b5f266227914917d53067d3c7741f08a3fdd65b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:42:02,331 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:42:02,439 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b568b-0810-4ed7-9f66-20468e05dad1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:42:02,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:42:02,445 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:42:02,469 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:42:02,469 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:42:02,470 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:42:02,471 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:42:02,472 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:42:02,473 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:42:02,474 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:42:02,474 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:42:02,475 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:42:02,476 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:42:02,477 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:42:02,477 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:42:02,478 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:42:02,478 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:42:02,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:42:02,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:42:02,480 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:42:02,481 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:42:02,481 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:42:02,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:42:02,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:02,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:42:02,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:42:02,484 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:42:02,484 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:42:02,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:42:02,485 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:42:02,486 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:42:02,486 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:42:02,487 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:42:02,487 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:42:02,488 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_b51b568b-0810-4ed7-9f66-20468e05dad1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b568b-0810-4ed7-9f66-20468e05dad1/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec1c916a4e8241683d3d78dd3b5f266227914917d53067d3c7741f08a3fdd65b [2023-11-19 07:42:02,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:42:02,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:42:02,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:42:02,881 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:42:02,882 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:42:02,884 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b568b-0810-4ed7-9f66-20468e05dad1/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-19 07:42:06,087 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:42:06,753 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:42:06,754 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b568b-0810-4ed7-9f66-20468e05dad1/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-19 07:42:06,824 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b568b-0810-4ed7-9f66-20468e05dad1/bin/uautomizer-verify-uCwYo4JHxu/data/10e8b2c2e/99fb3aec79ef4cabbe135c0c751b9342/FLAGd0af8ab67 [2023-11-19 07:42:06,847 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b568b-0810-4ed7-9f66-20468e05dad1/bin/uautomizer-verify-uCwYo4JHxu/data/10e8b2c2e/99fb3aec79ef4cabbe135c0c751b9342 [2023-11-19 07:42:06,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:42:06,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:42:06,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:06,863 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:42:06,870 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:42:06,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:06" (1/1) ... [2023-11-19 07:42:06,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@428c9e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:06, skipping insertion in model container [2023-11-19 07:42:06,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:06" (1/1) ... [2023-11-19 07:42:07,042 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:42:08,994 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_b51b568b-0810-4ed7-9f66-20468e05dad1/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point_ldv-val-v0.8.cil.out.i[218543,218556] [2023-11-19 07:42:09,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:09,120 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:42:09,221 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)); [3317-3318] [2023-11-19 07:42:09,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3355] [2023-11-19 07:42:09,230 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3358] [2023-11-19 07:42:09,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3361] [2023-11-19 07:42:09,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3364] [2023-11-19 07:42:09,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5603] [2023-11-19 07:42:09,447 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5608] [2023-11-19 07:42:09,447 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5613] [2023-11-19 07:42:09,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5618] [2023-11-19 07:42:09,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___0), "+m" (*__ptr___3): "0" (__x___0): "memory"); [5652] [2023-11-19 07:42:09,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___0), "+m" (*__ptr___4): "0" (__x___0): "memory"); [5657] [2023-11-19 07:42:09,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___0), "+m" (*__ptr___5): "0" (__x___0): "memory"); [5662] [2023-11-19 07:42:09,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___0), "+m" (*__ptr___6): "0" (__x___0): "memory"); [5667] [2023-11-19 07:42:09,490 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_b51b568b-0810-4ed7-9f66-20468e05dad1/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point_ldv-val-v0.8.cil.out.i[218543,218556] [2023-11-19 07:42:09,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:09,633 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:42:09,633 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:42:09,633 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:42:09,641 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:42:09,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:09 WrapperNode [2023-11-19 07:42:09,642 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:09,644 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:09,644 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:42:09,644 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:42:09,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:09" (1/1) ... [2023-11-19 07:42:09,758 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:09" (1/1) ... [2023-11-19 07:42:09,966 INFO L138 Inliner]: procedures = 187, calls = 2503, calls flagged for inlining = 73, calls inlined = 73, statements flattened = 5244 [2023-11-19 07:42:09,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:09,967 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:42:09,967 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:42:09,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:42:09,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:09" (1/1) ... [2023-11-19 07:42:09,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:09" (1/1) ... [2023-11-19 07:42:10,030 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:09" (1/1) ... [2023-11-19 07:42:10,031 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:09" (1/1) ... [2023-11-19 07:42:10,268 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:09" (1/1) ... [2023-11-19 07:42:10,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:09" (1/1) ... [2023-11-19 07:42:10,320 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:09" (1/1) ... [2023-11-19 07:42:10,352 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:09" (1/1) ... [2023-11-19 07:42:10,425 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:42:10,426 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:42:10,426 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:42:10,426 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:42:10,427 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:09" (1/1) ... [2023-11-19 07:42:10,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:10,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b568b-0810-4ed7-9f66-20468e05dad1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:10,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b568b-0810-4ed7-9f66-20468e05dad1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:10,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b568b-0810-4ed7-9f66-20468e05dad1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:42:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 07:42:10,505 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 07:42:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:42:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure ti_bulk_in_callback [2023-11-19 07:42:10,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_bulk_in_callback [2023-11-19 07:42:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-19 07:42:10,506 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-19 07:42:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-19 07:42:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:42:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:42:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 07:42:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 07:42:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:42:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 07:42:10,509 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 07:42:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2023-11-19 07:42:10,510 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2023-11-19 07:42:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure ti_throttle [2023-11-19 07:42:10,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_throttle [2023-11-19 07:42:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_serial_deregister [2023-11-19 07:42:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_serial_deregister [2023-11-19 07:42:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2023-11-19 07:42:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2023-11-19 07:42:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure ti_command_out_sync [2023-11-19 07:42:10,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_command_out_sync [2023-11-19 07:42:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-19 07:42:10,515 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-19 07:42:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-19 07:42:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-19 07:42:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:42:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:42:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-19 07:42:10,517 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-19 07:42:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure ti_open [2023-11-19 07:42:10,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_open [2023-11-19 07:42:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure ti_bulk_out_callback [2023-11-19 07:42:10,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_bulk_out_callback [2023-11-19 07:42:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-19 07:42:10,518 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-19 07:42:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure ti_tiocmset [2023-11-19 07:42:10,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_tiocmset [2023-11-19 07:42:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:42:10,519 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:42:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2023-11-19 07:42:10,519 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2023-11-19 07:42:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure ti_set_mcr [2023-11-19 07:42:10,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_set_mcr [2023-11-19 07:42:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:42:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:42:10,520 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:42:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 07:42:10,520 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 07:42:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write_byte [2023-11-19 07:42:10,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write_byte [2023-11-19 07:42:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure ti_chars_in_buffer [2023-11-19 07:42:10,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_chars_in_buffer [2023-11-19 07:42:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:42:10,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:42:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 07:42:10,523 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 07:42:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure ti_startup [2023-11-19 07:42:10,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_startup [2023-11-19 07:42:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:42:10,524 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:42:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure ti_ioctl [2023-11-19 07:42:10,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_ioctl [2023-11-19 07:42:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2023-11-19 07:42:10,525 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2023-11-19 07:42:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write_room [2023-11-19 07:42:10,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write_room [2023-11-19 07:42:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 07:42:10,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 07:42:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:42:10,526 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:42:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_2 [2023-11-19 07:42:10,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_2 [2023-11-19 07:42:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2023-11-19 07:42:10,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2023-11-19 07:42:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure ti_tiocmget [2023-11-19 07:42:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_tiocmget [2023-11-19 07:42:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2023-11-19 07:42:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2023-11-19 07:42:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:42:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_free [2023-11-19 07:42:10,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_free [2023-11-19 07:42:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2023-11-19 07:42:10,529 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2023-11-19 07:42:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 07:42:10,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 07:42:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 07:42:10,530 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 07:42:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure ti_interrupt_callback [2023-11-19 07:42:10,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_interrupt_callback [2023-11-19 07:42:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:42:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2023-11-19 07:42:10,531 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2023-11-19 07:42:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 07:42:10,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 07:42:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:42:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:42:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 07:42:10,533 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 07:42:10,533 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_data [2023-11-19 07:42:10,533 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_data [2023-11-19 07:42:10,533 INFO L130 BoogieDeclarations]: Found specification of procedure ti_close [2023-11-19 07:42:10,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_close [2023-11-19 07:42:10,534 INFO L130 BoogieDeclarations]: Found specification of procedure ti_break [2023-11-19 07:42:10,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_break [2023-11-19 07:42:10,535 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-19 07:42:10,535 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-19 07:42:10,535 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16s [2023-11-19 07:42:10,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16s [2023-11-19 07:42:10,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:42:10,536 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-19 07:42:10,536 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-19 07:42:10,536 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-19 07:42:10,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-19 07:42:10,536 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-19 07:42:10,536 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-19 07:42:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 07:42:10,537 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 07:42:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure ti_unthrottle [2023-11-19 07:42:10,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_unthrottle [2023-11-19 07:42:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:42:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write [2023-11-19 07:42:10,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write [2023-11-19 07:42:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:42:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure ti_restart_read [2023-11-19 07:42:10,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_restart_read [2023-11-19 07:42:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 07:42:10,539 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 07:42:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:42:10,539 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:42:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 07:42:10,540 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 07:42:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure ti_release [2023-11-19 07:42:10,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_release [2023-11-19 07:42:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 07:42:10,541 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 07:42:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 07:42:10,546 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 07:42:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-19 07:42:10,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-19 07:42:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2023-11-19 07:42:10,548 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2023-11-19 07:42:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 07:42:10,549 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 07:42:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 07:42:10,550 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 07:42:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 07:42:10,555 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 07:42:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure ti_send [2023-11-19 07:42:10,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_send [2023-11-19 07:42:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2023-11-19 07:42:10,556 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2023-11-19 07:42:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-19 07:42:10,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-19 07:42:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure ti_drain [2023-11-19 07:42:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_drain [2023-11-19 07:42:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 07:42:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 07:42:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:42:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2023-11-19 07:42:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2023-11-19 07:42:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure ti_set_termios [2023-11-19 07:42:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_set_termios [2023-11-19 07:42:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_data [2023-11-19 07:42:10,558 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_data [2023-11-19 07:42:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:42:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 07:42:10,558 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 07:42:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:42:10,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:42:11,276 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:42:11,282 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:42:12,079 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 07:43:06,730 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:43:06,751 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:43:06,752 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:43:06,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:06 BoogieIcfgContainer [2023-11-19 07:43:06,763 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:43:06,765 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:43:06,765 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:43:06,769 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:43:06,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:42:06" (1/3) ... [2023-11-19 07:43:06,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e951495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:06, skipping insertion in model container [2023-11-19 07:43:06,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:09" (2/3) ... [2023-11-19 07:43:06,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e951495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:06, skipping insertion in model container [2023-11-19 07:43:06,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:06" (3/3) ... [2023-11-19 07:43:06,772 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-19 07:43:06,792 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:43:06,792 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:43:06,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:43:06,890 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;@78bc3751, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:43:06,890 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:43:06,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 1868 states, 1344 states have (on average 1.431547619047619) internal successors, (1924), 1368 states have internal predecessors, (1924), 446 states have call successors, (446), 77 states have call predecessors, (446), 76 states have return successors, (440), 438 states have call predecessors, (440), 440 states have call successors, (440) [2023-11-19 07:43:06,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-11-19 07:43:06,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:06,922 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:43:06,923 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:43:06,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:06,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1629952020, now seen corresponding path program 1 times [2023-11-19 07:43:06,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:06,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588004535] [2023-11-19 07:43:06,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:06,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms