./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_e02e339e-eef7-4a1a-9c65-d05a2e18122e/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02e339e-eef7-4a1a-9c65-d05a2e18122e/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02e339e-eef7-4a1a-9c65-d05a2e18122e/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02e339e-eef7-4a1a-9c65-d05a2e18122e/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02e339e-eef7-4a1a-9c65-d05a2e18122e/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02e339e-eef7-4a1a-9c65-d05a2e18122e/bin/utaipan-verify-QoSU8krkJ5 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4d5b4b32fa0da80203e2a18166964cfde265e42cc1a9ca2751016d17ee22d414 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:56:51,375 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:56:51,445 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02e339e-eef7-4a1a-9c65-d05a2e18122e/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 18:56:51,451 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:56:51,452 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 18:56:51,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:56:51,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 18:56:51,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 18:56:51,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:56:51,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 18:56:51,483 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 18:56:51,484 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 18:56:51,484 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 18:56:51,485 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 18:56:51,485 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 18:56:51,486 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 18:56:51,486 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 18:56:51,487 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 18:56:51,487 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 18:56:51,488 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 18:56:51,488 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 18:56:51,492 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 18:56:51,494 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:56:51,494 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:56:51,494 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:56:51,495 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:56:51,495 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:56:51,496 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:56:51,496 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:56:51,497 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:56:51,510 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:56:51,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:56:51,510 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 18:56:51,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 18:56:51,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:56:51,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:56:51,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:56:51,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:56:51,512 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 18:56:51,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:56:51,512 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 18:56:51,512 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:56:51,513 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 18:56:51,513 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:56:51,513 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e02e339e-eef7-4a1a-9c65-d05a2e18122e/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02e339e-eef7-4a1a-9c65-d05a2e18122e/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d5b4b32fa0da80203e2a18166964cfde265e42cc1a9ca2751016d17ee22d414 [2023-11-21 18:56:51,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:56:51,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:56:51,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:56:51,858 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:56:51,859 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:56:51,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02e339e-eef7-4a1a-9c65-d05a2e18122e/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2023-11-21 18:56:54,923 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:56:55,478 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:56:55,479 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02e339e-eef7-4a1a-9c65-d05a2e18122e/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2023-11-21 18:56:55,527 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02e339e-eef7-4a1a-9c65-d05a2e18122e/bin/utaipan-verify-QoSU8krkJ5/data/52e387df7/92b96365eff44872acd776f87bc86bcd/FLAGa95bc15eb [2023-11-21 18:56:55,543 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02e339e-eef7-4a1a-9c65-d05a2e18122e/bin/utaipan-verify-QoSU8krkJ5/data/52e387df7/92b96365eff44872acd776f87bc86bcd [2023-11-21 18:56:55,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:56:55,553 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:56:55,554 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:56:55,555 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:56:55,560 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:56:55,561 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:56:55" (1/1) ... [2023-11-21 18:56:55,562 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47fe5fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:55, skipping insertion in model container [2023-11-21 18:56:55,562 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:56:55" (1/1) ... [2023-11-21 18:56:55,712 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:56:57,048 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_e02e339e-eef7-4a1a-9c65-d05a2e18122e/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i[110947,110960] [2023-11-21 18:56:57,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:56:57,729 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:56:57,878 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)); [3320-3321] [2023-11-21 18:56:57,882 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3358] [2023-11-21 18:56:57,883 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3361] [2023-11-21 18:56:57,883 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3364] [2023-11-21 18:56:57,883 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3367] [2023-11-21 18:56:57,932 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_e02e339e-eef7-4a1a-9c65-d05a2e18122e/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i[110947,110960] [2023-11-21 18:56:58,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5850] [2023-11-21 18:56:58,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5855] [2023-11-21 18:56:58,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5860] [2023-11-21 18:56:58,175 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5865] [2023-11-21 18:56:58,177 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"); [5899] [2023-11-21 18:56:58,177 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"); [5904] [2023-11-21 18:56:58,178 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"); [5909] [2023-11-21 18:56:58,179 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"); [5914] [2023-11-21 18:56:58,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:56:58,335 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:56:58,336 WARN L675 CHandler]: The function kmem_cache_alloc_notrace is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:56:58,336 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:56:58,336 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:56:58,344 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:56:58,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:58 WrapperNode [2023-11-21 18:56:58,345 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:56:58,347 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:56:58,347 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:56:58,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:56:58,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:58" (1/1) ... [2023-11-21 18:56:58,467 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:58" (1/1) ... [2023-11-21 18:56:58,688 INFO L138 Inliner]: procedures = 204, calls = 2437, calls flagged for inlining = 86, calls inlined = 86, statements flattened = 5417 [2023-11-21 18:56:58,688 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:56:58,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:56:58,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:56:58,691 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:56:58,701 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:58" (1/1) ... [2023-11-21 18:56:58,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:58" (1/1) ... [2023-11-21 18:56:58,762 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:58" (1/1) ... [2023-11-21 18:56:58,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:58" (1/1) ... [2023-11-21 18:56:58,871 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:58" (1/1) ... [2023-11-21 18:56:58,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:58" (1/1) ... [2023-11-21 18:56:58,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:58" (1/1) ... [2023-11-21 18:56:58,972 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:58" (1/1) ... [2023-11-21 18:56:59,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:56:59,009 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:56:59,009 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:56:59,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:56:59,010 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:58" (1/1) ... [2023-11-21 18:56:59,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:56:59,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02e339e-eef7-4a1a-9c65-d05a2e18122e/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 18:56:59,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02e339e-eef7-4a1a-9c65-d05a2e18122e/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 18:56:59,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02e339e-eef7-4a1a-9c65-d05a2e18122e/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 18:56:59,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-21 18:56:59,091 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-21 18:56:59,092 INFO L130 BoogieDeclarations]: Found specification of procedure ti_bulk_in_callback [2023-11-21 18:56:59,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_bulk_in_callback [2023-11-21 18:56:59,138 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-21 18:56:59,139 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-21 18:56:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-21 18:56:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 18:56:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 18:56:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 18:56:59,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 18:56:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2023-11-21 18:56:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2023-11-21 18:56:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure ti_throttle [2023-11-21 18:56:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_throttle [2023-11-21 18:56:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-21 18:56:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-21 18:56:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 18:56:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 18:56:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure ti_bulk_out_callback [2023-11-21 18:56:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_bulk_out_callback [2023-11-21 18:56:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-21 18:56:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-21 18:56:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2023-11-21 18:56:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2023-11-21 18:56:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure ti_set_mcr [2023-11-21 18:56:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_set_mcr [2023-11-21 18:56:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 18:56:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 18:56:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 18:56:59,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 18:56:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure ti_startup [2023-11-21 18:56:59,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_startup [2023-11-21 18:56:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 18:56:59,142 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 18:56:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure ti_ioctl [2023-11-21 18:56:59,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_ioctl [2023-11-21 18:56:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 18:56:59,143 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 18:56:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_2 [2023-11-21 18:56:59,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_2 [2023-11-21 18:56:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2023-11-21 18:56:59,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2023-11-21 18:56:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure ti_tiocmget [2023-11-21 18:56:59,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_tiocmget [2023-11-21 18:56:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2023-11-21 18:56:59,143 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2023-11-21 18:56:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_free [2023-11-21 18:56:59,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_free [2023-11-21 18:56:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2023-11-21 18:56:59,144 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2023-11-21 18:56:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 18:56:59,144 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 18:56:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:56:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-21 18:56:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_data [2023-11-21 18:56:59,145 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_data [2023-11-21 18:56:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure ti_break [2023-11-21 18:56:59,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_break [2023-11-21 18:56:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16s [2023-11-21 18:56:59,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16s [2023-11-21 18:56:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 18:56:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-21 18:56:59,145 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-21 18:56:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 18:56:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 18:56:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:56:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write [2023-11-21 18:56:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write [2023-11-21 18:56:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 18:56:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure ti_restart_read [2023-11-21 18:56:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_restart_read [2023-11-21 18:56:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2023-11-21 18:56:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2023-11-21 18:56:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-21 18:56:59,147 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-21 18:56:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 18:56:59,159 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 18:56:59,159 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-21 18:56:59,160 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-21 18:56:59,160 INFO L130 BoogieDeclarations]: Found specification of procedure ti_release [2023-11-21 18:56:59,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_release [2023-11-21 18:56:59,160 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2023-11-21 18:56:59,160 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2023-11-21 18:56:59,161 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-21 18:56:59,161 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-21 18:56:59,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_s_reg [2023-11-21 18:56:59,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_s_reg [2023-11-21 18:56:59,161 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-21 18:56:59,167 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-21 18:56:59,167 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-21 18:56:59,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-21 18:56:59,169 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-21 18:56:59,169 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-21 18:56:59,169 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-21 18:56:59,169 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-21 18:56:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2023-11-21 18:56:59,170 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2023-11-21 18:56:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-21 18:56:59,170 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-21 18:56:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2023-11-21 18:56:59,171 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2023-11-21 18:56:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 18:56:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-21 18:56:59,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-21 18:56:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-21 18:56:59,173 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-21 18:56:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:56:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:56:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2023-11-21 18:56:59,174 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2023-11-21 18:56:59,174 INFO L130 BoogieDeclarations]: Found specification of procedure ti_command_out_sync [2023-11-21 18:56:59,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_command_out_sync [2023-11-21 18:56:59,174 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-21 18:56:59,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-21 18:56:59,175 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-21 18:56:59,175 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-21 18:56:59,175 INFO L130 BoogieDeclarations]: Found specification of procedure ti_open [2023-11-21 18:56:59,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_open [2023-11-21 18:56:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure ti_tiocmset [2023-11-21 18:56:59,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_tiocmset [2023-11-21 18:56:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 18:56:59,176 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 18:56:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:56:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-21 18:56:59,177 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-21 18:56:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_s_der [2023-11-21 18:56:59,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_s_der [2023-11-21 18:56:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write_byte [2023-11-21 18:56:59,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write_byte [2023-11-21 18:56:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure ti_chars_in_buffer [2023-11-21 18:56:59,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_chars_in_buffer [2023-11-21 18:56:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 18:56:59,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 18:56:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-21 18:56:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-21 18:56:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2023-11-21 18:56:59,189 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2023-11-21 18:56:59,189 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write_room [2023-11-21 18:56:59,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write_room [2023-11-21 18:56:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 18:56:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2023-11-21 18:56:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure ti_interrupt_callback [2023-11-21 18:56:59,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_interrupt_callback [2023-11-21 18:56:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:56:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2023-11-21 18:56:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2023-11-21 18:56:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 18:56:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-21 18:56:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure ti_close [2023-11-21 18:56:59,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_close [2023-11-21 18:56:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-21 18:56:59,193 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-21 18:56:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-21 18:56:59,193 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-21 18:56:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2023-11-21 18:56:59,194 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2023-11-21 18:56:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-21 18:56:59,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-21 18:56:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure ti_unthrottle [2023-11-21 18:56:59,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_unthrottle [2023-11-21 18:56:59,195 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2023-11-21 18:56:59,195 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2023-11-21 18:56:59,195 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-21 18:56:59,195 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-21 18:56:59,195 INFO L130 BoogieDeclarations]: Found specification of procedure ti_send [2023-11-21 18:56:59,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_send [2023-11-21 18:56:59,196 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-21 18:56:59,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-21 18:56:59,196 INFO L130 BoogieDeclarations]: Found specification of procedure ti_drain [2023-11-21 18:56:59,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_drain [2023-11-21 18:56:59,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:56:59,197 INFO L130 BoogieDeclarations]: Found specification of procedure ti_set_termios [2023-11-21 18:56:59,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_set_termios [2023-11-21 18:56:59,199 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_data [2023-11-21 18:56:59,199 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_data [2023-11-21 18:56:59,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:56:59,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:56:59,820 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:56:59,829 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:57:00,157 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 18:57:51,442 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:57:54,268 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:57:54,269 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:57:54,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:57:54 BoogieIcfgContainer [2023-11-21 18:57:54,272 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:57:54,277 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 18:57:54,278 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 18:57:54,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 18:57:54,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 06:56:55" (1/3) ... [2023-11-21 18:57:54,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164c7620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:57:54, skipping insertion in model container [2023-11-21 18:57:54,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:58" (2/3) ... [2023-11-21 18:57:54,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164c7620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:57:54, skipping insertion in model container [2023-11-21 18:57:54,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:57:54" (3/3) ... [2023-11-21 18:57:54,286 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2023-11-21 18:57:54,306 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 18:57:54,307 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 18:57:54,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 18:57:54,418 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=FINITE_AUTOMATA, 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;@6be76605, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 18:57:54,418 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 18:57:54,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 1485 states, 960 states have (on average 1.4) internal successors, (1344), 989 states have internal predecessors, (1344), 445 states have call successors, (445), 79 states have call predecessors, (445), 78 states have return successors, (440), 438 states have call predecessors, (440), 440 states have call successors, (440) [2023-11-21 18:57:54,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-21 18:57:54,452 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:54,452 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 18:57:54,453 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 18:57:54,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:54,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1829950833, now seen corresponding path program 1 times [2023-11-21 18:57:54,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:57:54,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339156118] [2023-11-21 18:57:54,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:54,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms