./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_38d19f02-992e-4006-a622-923494d4eb51/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d19f02-992e-4006-a622-923494d4eb51/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d19f02-992e-4006-a622-923494d4eb51/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d19f02-992e-4006-a622-923494d4eb51/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d19f02-992e-4006-a622-923494d4eb51/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d19f02-992e-4006-a622-923494d4eb51/bin/utaipan-verify-mE87zJ7Ire --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 234112184b071eb42f340136dfce6e1a552d788d086baea007a05a3140f2d157 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:37:30,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:37:30,548 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d19f02-992e-4006-a622-923494d4eb51/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:37:30,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:37:30,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:37:30,579 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:37:30,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:37:30,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:37:30,581 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:37:30,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:37:30,583 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:37:30,583 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:37:30,584 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:37:30,584 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:37:30,585 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:37:30,586 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:37:30,586 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:37:30,590 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:37:30,591 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:37:30,591 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:37:30,592 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:37:30,592 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:37:30,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:37:30,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:37:30,594 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:37:30,594 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:37:30,595 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:37:30,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:37:30,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:37:30,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:37:30,597 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:37:30,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:37:30,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:37:30,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:37:30,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:37:30,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:37:30,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:37:30,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:37:30,599 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:37:30,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:37:30,600 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:37:30,600 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:37:30,601 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:37:30,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:37:30,602 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_38d19f02-992e-4006-a622-923494d4eb51/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d19f02-992e-4006-a622-923494d4eb51/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 234112184b071eb42f340136dfce6e1a552d788d086baea007a05a3140f2d157 [2023-11-23 20:37:30,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:37:30,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:37:30,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:37:30,937 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:37:30,938 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:37:30,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d19f02-992e-4006-a622-923494d4eb51/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-11-23 20:37:34,039 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:37:34,773 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:37:34,774 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d19f02-992e-4006-a622-923494d4eb51/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-11-23 20:37:34,830 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d19f02-992e-4006-a622-923494d4eb51/bin/utaipan-verify-mE87zJ7Ire/data/9ed2305c1/baa4085ab15444a291291c7d3b4c4280/FLAGbc60d6f98 [2023-11-23 20:37:34,850 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d19f02-992e-4006-a622-923494d4eb51/bin/utaipan-verify-mE87zJ7Ire/data/9ed2305c1/baa4085ab15444a291291c7d3b4c4280 [2023-11-23 20:37:34,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:37:34,865 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:37:34,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:37:34,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:37:34,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:37:34,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:34" (1/1) ... [2023-11-23 20:37:34,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb6b4e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:34, skipping insertion in model container [2023-11-23 20:37:34,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:34" (1/1) ... [2023-11-23 20:37:35,061 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:37:37,114 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_38d19f02-992e-4006-a622-923494d4eb51/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[254896,254909] [2023-11-23 20:37:37,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:37,250 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:37:37,402 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3885] [2023-11-23 20:37:37,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3887] [2023-11-23 20:37:37,405 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"); [3897] [2023-11-23 20:37:37,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3904] [2023-11-23 20:37:37,406 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, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3912-3913] [2023-11-23 20:37:37,408 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)); [3927-3928] [2023-11-23 20:37:37,413 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4059] [2023-11-23 20:37:37,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4062] [2023-11-23 20:37:37,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4065] [2023-11-23 20:37:37,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4068] [2023-11-23 20:37:37,416 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; cmpxchgb %2,%1": "=a" (__ret), "+m" (*__ptr): "q" (__new), "0" (__old): "memory"); [4107-4108] [2023-11-23 20:37:37,417 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; cmpxchgw %2,%1": "=a" (__ret), "+m" (*__ptr___0): "r" (__new), "0" (__old): "memory"); [4112-4113] [2023-11-23 20:37:37,417 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; cmpxchgl %2,%1": "=a" (__ret), "+m" (*__ptr___1): "r" (__new), "0" (__old): "memory"); [4117-4118] [2023-11-23 20:37:37,418 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; cmpxchgq %2,%1": "=a" (__ret), "+m" (*__ptr___2): "r" (__new), "0" (__old): "memory"); [4122-4123] [2023-11-23 20:37:37,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5263] [2023-11-23 20:37:37,516 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___1->state): : "memory", "cc"); [5901-5902] [2023-11-23 20:37:37,517 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___2->state): : "memory", "cc"); [5906-5907] [2023-11-23 20:37:37,517 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [5911-5912] [2023-11-23 20:37:37,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [5916-5917] [2023-11-23 20:37:37,710 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_38d19f02-992e-4006-a622-923494d4eb51/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[254896,254909] [2023-11-23 20:37:37,726 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:37,935 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:37:37,935 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:37:37,935 WARN L675 CHandler]: The function __cmpxchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:37:37,936 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:37:37,936 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:37:37,944 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:37:37,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37 WrapperNode [2023-11-23 20:37:37,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:37:37,947 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:37,947 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:37:37,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:37:37,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:38,113 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:38,434 INFO L138 Inliner]: procedures = 286, calls = 3982, calls flagged for inlining = 142, calls inlined = 121, statements flattened = 8346 [2023-11-23 20:37:38,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:38,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:37:38,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:37:38,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:37:38,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:38,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:38,489 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:38,489 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:38,697 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:38,740 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:38,776 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:38,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:38,868 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:37:38,869 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:37:38,870 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:37:38,870 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:37:38,871 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:38,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:37:38,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d19f02-992e-4006-a622-923494d4eb51/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:37:38,908 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d19f02-992e-4006-a622-923494d4eb51/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:37:39,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d19f02-992e-4006-a622-923494d4eb51/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:37:39,055 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2023-11-23 20:37:39,057 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2023-11-23 20:37:39,057 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2023-11-23 20:37:39,057 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2023-11-23 20:37:39,057 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2023-11-23 20:37:39,059 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-23 20:37:39,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-23 20:37:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-23 20:37:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:37:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:37:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:37:39,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:37:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 20:37:39,060 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 20:37:39,061 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-11-23 20:37:39,061 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-11-23 20:37:39,061 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2023-11-23 20:37:39,061 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2023-11-23 20:37:39,062 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-23 20:37:39,062 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-23 20:37:39,062 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 20:37:39,062 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 20:37:39,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 20:37:39,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 20:37:39,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:37:39,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:37:39,063 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-23 20:37:39,063 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-23 20:37:39,063 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2023-11-23 20:37:39,063 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2023-11-23 20:37:39,063 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2023-11-23 20:37:39,063 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2023-11-23 20:37:39,063 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 20:37:39,063 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 20:37:39,064 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-23 20:37:39,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-23 20:37:39,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 20:37:39,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 20:37:39,065 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-23 20:37:39,066 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-23 20:37:39,066 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-23 20:37:39,066 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-23 20:37:39,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 20:37:39,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 20:37:39,066 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:37:39,066 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:37:39,067 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 20:37:39,067 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 20:37:39,067 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2023-11-23 20:37:39,067 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2023-11-23 20:37:39,067 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2023-11-23 20:37:39,067 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2023-11-23 20:37:39,067 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2023-11-23 20:37:39,068 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2023-11-23 20:37:39,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:37:39,068 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 20:37:39,069 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 20:37:39,069 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 20:37:39,069 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 20:37:39,069 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2023-11-23 20:37:39,069 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2023-11-23 20:37:39,069 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-11-23 20:37:39,070 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-11-23 20:37:39,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:37:39,070 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2023-11-23 20:37:39,071 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2023-11-23 20:37:39,071 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2023-11-23 20:37:39,071 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2023-11-23 20:37:39,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 20:37:39,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 20:37:39,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 20:37:39,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 20:37:39,071 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 20:37:39,072 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 20:37:39,072 INFO L130 BoogieDeclarations]: Found specification of procedure acm_softint [2023-11-23 20:37:39,072 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_softint [2023-11-23 20:37:39,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:37:39,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:37:39,072 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 20:37:39,072 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 20:37:39,072 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-23 20:37:39,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-23 20:37:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-11-23 20:37:39,073 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-11-23 20:37:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 20:37:39,073 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 20:37:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 20:37:39,074 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 20:37:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2023-11-23 20:37:39,074 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2023-11-23 20:37:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-23 20:37:39,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-23 20:37:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2023-11-23 20:37:39,076 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2023-11-23 20:37:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2023-11-23 20:37:39,076 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2023-11-23 20:37:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2023-11-23 20:37:39,076 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2023-11-23 20:37:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:37:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2023-11-23 20:37:39,076 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2023-11-23 20:37:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 20:37:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 20:37:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:37:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2023-11-23 20:37:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2023-11-23 20:37:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:37:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2023-11-23 20:37:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2023-11-23 20:37:39,078 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-23 20:37:39,078 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-23 20:37:39,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 20:37:39,078 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 20:37:39,078 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-23 20:37:39,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-23 20:37:39,079 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2023-11-23 20:37:39,079 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2023-11-23 20:37:39,079 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2023-11-23 20:37:39,079 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2023-11-23 20:37:39,079 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 20:37:39,080 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 20:37:39,080 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-23 20:37:39,081 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-23 20:37:39,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 20:37:39,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 20:37:39,085 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2023-11-23 20:37:39,085 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2023-11-23 20:37:39,085 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2023-11-23 20:37:39,086 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2023-11-23 20:37:39,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-11-23 20:37:39,087 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-11-23 20:37:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:37:39,088 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:37:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:37:39,093 INFO L130 BoogieDeclarations]: Found specification of procedure acm_set_control [2023-11-23 20:37:39,093 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_set_control [2023-11-23 20:37:39,093 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 20:37:39,093 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 20:37:39,093 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2023-11-23 20:37:39,093 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2023-11-23 20:37:39,093 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-23 20:37:39,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-23 20:37:39,093 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2023-11-23 20:37:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2023-11-23 20:37:39,094 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2023-11-23 20:37:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2023-11-23 20:37:39,094 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-23 20:37:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-23 20:37:39,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:37:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:37:39,094 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-11-23 20:37:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-11-23 20:37:39,095 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2023-11-23 20:37:39,095 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2023-11-23 20:37:39,095 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2023-11-23 20:37:39,095 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2023-11-23 20:37:39,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 20:37:39,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 20:37:39,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:37:39,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 20:37:39,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 20:37:39,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:37:39,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:37:39,096 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 20:37:39,096 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-23 20:37:39,096 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-23 20:37:39,096 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_dtr_rts [2023-11-23 20:37:39,096 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_dtr_rts [2023-11-23 20:37:39,096 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 20:37:39,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 20:37:39,096 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-23 20:37:39,097 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-23 20:37:39,097 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2023-11-23 20:37:39,097 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2023-11-23 20:37:39,097 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2023-11-23 20:37:39,097 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2023-11-23 20:37:39,097 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2023-11-23 20:37:39,097 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2023-11-23 20:37:39,097 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2023-11-23 20:37:39,097 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2023-11-23 20:37:39,098 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-23 20:37:39,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-23 20:37:39,098 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 20:37:39,098 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 20:37:39,098 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-23 20:37:39,098 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-23 20:37:39,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:37:39,098 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-23 20:37:39,098 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-23 20:37:39,098 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-11-23 20:37:39,099 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-11-23 20:37:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2023-11-23 20:37:39,099 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2023-11-23 20:37:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:37:39,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:37:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2023-11-23 20:37:39,099 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2023-11-23 20:37:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 20:37:39,099 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 20:37:39,870 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:37:39,877 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:37:40,191 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:37:56,807 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:37:58,971 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:37:58,971 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:37:58,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:58 BoogieIcfgContainer [2023-11-23 20:37:58,974 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:37:58,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:37:58,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:37:58,982 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:37:58,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:37:34" (1/3) ... [2023-11-23 20:37:58,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7917bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:37:58, skipping insertion in model container [2023-11-23 20:37:58,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (2/3) ... [2023-11-23 20:37:58,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7917bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:37:58, skipping insertion in model container [2023-11-23 20:37:58,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:58" (3/3) ... [2023-11-23 20:37:58,988 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-11-23 20:37:59,012 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:37:59,013 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:37:59,129 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:37:59,139 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;@159814b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:37:59,140 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:37:59,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 1257 states, 788 states have (on average 1.3604060913705585) internal successors, (1072), 816 states have internal predecessors, (1072), 379 states have call successors, (379), 89 states have call predecessors, (379), 88 states have return successors, (370), 369 states have call predecessors, (370), 370 states have call successors, (370) [2023-11-23 20:37:59,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-11-23 20:37:59,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:59,207 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:37:59,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:59,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:59,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1482734682, now seen corresponding path program 1 times [2023-11-23 20:37:59,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:59,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89858131] [2023-11-23 20:37:59,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:59,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms