./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca539e-de5c-48b8-b9dc-faf01733ab10/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca539e-de5c-48b8-b9dc-faf01733ab10/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca539e-de5c-48b8-b9dc-faf01733ab10/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca539e-de5c-48b8-b9dc-faf01733ab10/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca539e-de5c-48b8-b9dc-faf01733ab10/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca539e-de5c-48b8-b9dc-faf01733ab10/bin/utaipan-verify-t7M7D8N6sZ --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 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:13:12,805 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:13:12,924 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca539e-de5c-48b8-b9dc-faf01733ab10/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:13:12,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:13:12,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:13:12,964 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:13:12,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:13:12,966 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:13:12,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:13:12,972 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:13:12,973 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:13:12,974 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:13:12,975 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:13:12,977 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:13:12,977 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:13:12,978 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:13:12,978 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:13:12,978 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:13:12,979 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:13:12,979 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:13:12,980 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:13:12,981 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:13:12,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:13:12,982 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:13:12,983 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:13:12,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:13:12,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:13:12,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:13:12,985 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:13:12,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:13:12,986 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:13:12,987 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:13:12,987 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:13:12,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:13:12,988 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:13:12,988 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:13:12,988 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:13:12,989 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:13:12,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:13:12,989 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:13:12,990 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:13:12,990 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:13:12,990 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_f8ca539e-de5c-48b8-b9dc-faf01733ab10/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca539e-de5c-48b8-b9dc-faf01733ab10/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d [2023-11-19 05:13:13,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:13:13,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:13:13,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:13:13,369 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:13:13,369 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:13:13,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca539e-de5c-48b8-b9dc-faf01733ab10/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2023-11-19 05:13:16,548 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:13:17,278 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:13:17,278 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca539e-de5c-48b8-b9dc-faf01733ab10/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2023-11-19 05:13:17,329 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca539e-de5c-48b8-b9dc-faf01733ab10/bin/utaipan-verify-t7M7D8N6sZ/data/caf4a9218/e7bdca7ce58e476aae5fc1b42efa4156/FLAG4369f90ff [2023-11-19 05:13:17,345 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca539e-de5c-48b8-b9dc-faf01733ab10/bin/utaipan-verify-t7M7D8N6sZ/data/caf4a9218/e7bdca7ce58e476aae5fc1b42efa4156 [2023-11-19 05:13:17,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:13:17,350 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:13:17,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:13:17,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:13:17,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:13:17,358 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:13:17" (1/1) ... [2023-11-19 05:13:17,359 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd06029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:17, skipping insertion in model container [2023-11-19 05:13:17,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:13:17" (1/1) ... [2023-11-19 05:13:17,562 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:13:18,954 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_f8ca539e-de5c-48b8-b9dc-faf01733ab10/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2023-11-19 05:13:20,335 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:13:20,416 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:13:20,557 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3760] [2023-11-19 05:13:20,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3794-3795] [2023-11-19 05:13:20,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3798-3799] [2023-11-19 05:13:20,562 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3802-3803] [2023-11-19 05:13:20,562 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3806-3807] [2023-11-19 05:13:20,578 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_f8ca539e-de5c-48b8-b9dc-faf01733ab10/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2023-11-19 05:13:20,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [7459] [2023-11-19 05:13:20,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7466] [2023-11-19 05:13:20,958 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [7475-7476] [2023-11-19 05:13:20,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [7492-7493] [2023-11-19 05:13:20,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [7507-7508] [2023-11-19 05:13:20,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [7521] [2023-11-19 05:13:20,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7524] [2023-11-19 05:13:20,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7527] [2023-11-19 05:13:20,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7530] [2023-11-19 05:13:20,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& kernel_stack)); [7547] [2023-11-19 05:13:20,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [7550] [2023-11-19 05:13:20,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [7553] [2023-11-19 05:13:20,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [7556] [2023-11-19 05:13:21,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:13:21,311 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:13:21,312 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:13:21,312 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:13:21,321 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:13:21,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:21 WrapperNode [2023-11-19 05:13:21,323 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:13:21,324 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:13:21,324 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:13:21,324 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:13:21,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:21" (1/1) ... [2023-11-19 05:13:21,480 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:21" (1/1) ... [2023-11-19 05:13:21,754 INFO L138 Inliner]: procedures = 371, calls = 3106, calls flagged for inlining = 200, calls inlined = 181, statements flattened = 6466 [2023-11-19 05:13:21,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:13:21,755 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:13:21,756 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:13:21,756 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:13:21,766 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:21" (1/1) ... [2023-11-19 05:13:21,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:21" (1/1) ... [2023-11-19 05:13:21,836 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:21" (1/1) ... [2023-11-19 05:13:21,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:21" (1/1) ... [2023-11-19 05:13:22,116 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:21" (1/1) ... [2023-11-19 05:13:22,158 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:21" (1/1) ... [2023-11-19 05:13:22,197 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:21" (1/1) ... [2023-11-19 05:13:22,229 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:21" (1/1) ... [2023-11-19 05:13:22,281 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:13:22,282 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:13:22,282 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:13:22,283 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:13:22,284 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:21" (1/1) ... [2023-11-19 05:13:22,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:13:22,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca539e-de5c-48b8-b9dc-faf01733ab10/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:13:22,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca539e-de5c-48b8-b9dc-faf01733ab10/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:13:22,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca539e-de5c-48b8-b9dc-faf01733ab10/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:13:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2023-11-19 05:13:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2023-11-19 05:13:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2023-11-19 05:13:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2023-11-19 05:13:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2023-11-19 05:13:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2023-11-19 05:13:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2023-11-19 05:13:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2023-11-19 05:13:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-19 05:13:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-19 05:13:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_14 [2023-11-19 05:13:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_14 [2023-11-19 05:13:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2023-11-19 05:13:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2023-11-19 05:13:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:13:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:13:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-11-19 05:13:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-11-19 05:13:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2023-11-19 05:13:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2023-11-19 05:13:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2023-11-19 05:13:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2023-11-19 05:13:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2023-11-19 05:13:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2023-11-19 05:13:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-11-19 05:13:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-11-19 05:13:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2023-11-19 05:13:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2023-11-19 05:13:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-19 05:13:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-19 05:13:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-19 05:13:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-19 05:13:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2023-11-19 05:13:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2023-11-19 05:13:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:13:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:13:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-19 05:13:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-19 05:13:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-11-19 05:13:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-11-19 05:13:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2023-11-19 05:13:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2023-11-19 05:13:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2023-11-19 05:13:22,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2023-11-19 05:13:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2023-11-19 05:13:22,389 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2023-11-19 05:13:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2023-11-19 05:13:22,390 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2023-11-19 05:13:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2023-11-19 05:13:22,390 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2023-11-19 05:13:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 05:13:22,390 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 05:13:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 05:13:22,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 05:13:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2023-11-19 05:13:22,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2023-11-19 05:13:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2023-11-19 05:13:22,392 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2023-11-19 05:13:22,393 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2023-11-19 05:13:22,393 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2023-11-19 05:13:22,393 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-19 05:13:22,393 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-19 05:13:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2023-11-19 05:13:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2023-11-19 05:13:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 05:13:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 05:13:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:13:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:13:22,395 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2023-11-19 05:13:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2023-11-19 05:13:22,396 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2023-11-19 05:13:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2023-11-19 05:13:22,396 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2023-11-19 05:13:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2023-11-19 05:13:22,396 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2023-11-19 05:13:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2023-11-19 05:13:22,397 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2023-11-19 05:13:22,397 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2023-11-19 05:13:22,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___2 [2023-11-19 05:13:22,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___2 [2023-11-19 05:13:22,397 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2023-11-19 05:13:22,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2023-11-19 05:13:22,398 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 05:13:22,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 05:13:22,398 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 05:13:22,398 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 05:13:22,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:13:22,399 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 05:13:22,399 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 05:13:22,400 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 05:13:22,400 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2023-11-19 05:13:22,400 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2023-11-19 05:13:22,400 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2023-11-19 05:13:22,401 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2023-11-19 05:13:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2023-11-19 05:13:22,401 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2023-11-19 05:13:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2023-11-19 05:13:22,401 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2023-11-19 05:13:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-11-19 05:13:22,402 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-11-19 05:13:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:13:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 05:13:22,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 05:13:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-19 05:13:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2023-11-19 05:13:22,404 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2023-11-19 05:13:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2023-11-19 05:13:22,404 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2023-11-19 05:13:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-19 05:13:22,404 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-19 05:13:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 05:13:22,405 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 05:13:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2023-11-19 05:13:22,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2023-11-19 05:13:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2023-11-19 05:13:22,405 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2023-11-19 05:13:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:13:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:13:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:13:22,406 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:13:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 05:13:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 05:13:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2023-11-19 05:13:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2023-11-19 05:13:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 05:13:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 05:13:22,409 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-11-19 05:13:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-11-19 05:13:22,410 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 05:13:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 05:13:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2023-11-19 05:13:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2023-11-19 05:13:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2023-11-19 05:13:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2023-11-19 05:13:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 05:13:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 05:13:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 05:13:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 05:13:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 05:13:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 05:13:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2023-11-19 05:13:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2023-11-19 05:13:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2023-11-19 05:13:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2023-11-19 05:13:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2023-11-19 05:13:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2023-11-19 05:13:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 05:13:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 05:13:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2023-11-19 05:13:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2023-11-19 05:13:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_bulk_callback [2023-11-19 05:13:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_bulk_callback [2023-11-19 05:13:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 05:13:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 05:13:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2023-11-19 05:13:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2023-11-19 05:13:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 05:13:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 05:13:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2023-11-19 05:13:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2023-11-19 05:13:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 05:13:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 05:13:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2023-11-19 05:13:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2023-11-19 05:13:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2023-11-19 05:13:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2023-11-19 05:13:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2023-11-19 05:13:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2023-11-19 05:13:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2023-11-19 05:13:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2023-11-19 05:13:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:13:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-11-19 05:13:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-11-19 05:13:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-19 05:13:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-19 05:13:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2023-11-19 05:13:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2023-11-19 05:13:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-19 05:13:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-19 05:13:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2023-11-19 05:13:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2023-11-19 05:13:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2023-11-19 05:13:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2023-11-19 05:13:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 05:13:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 05:13:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-19 05:13:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-19 05:13:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2023-11-19 05:13:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2023-11-19 05:13:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2023-11-19 05:13:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2023-11-19 05:13:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:13:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:13:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_41 [2023-11-19 05:13:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_41 [2023-11-19 05:13:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_42 [2023-11-19 05:13:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_42 [2023-11-19 05:13:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-11-19 05:13:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-11-19 05:13:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:13:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2023-11-19 05:13:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2023-11-19 05:13:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 05:13:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 05:13:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2023-11-19 05:13:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2023-11-19 05:13:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2023-11-19 05:13:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2023-11-19 05:13:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:13:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:13:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2023-11-19 05:13:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2023-11-19 05:13:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2023-11-19 05:13:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2023-11-19 05:13:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2023-11-19 05:13:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2023-11-19 05:13:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:13:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2023-11-19 05:13:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2023-11-19 05:13:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:13:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 05:13:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 05:13:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:13:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 05:13:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_18 [2023-11-19 05:13:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_18 [2023-11-19 05:13:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_4 [2023-11-19 05:13:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_4 [2023-11-19 05:13:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:13:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:13:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 05:13:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 05:13:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2023-11-19 05:13:22,437 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2023-11-19 05:13:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-19 05:13:22,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-19 05:13:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-11-19 05:13:22,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-11-19 05:13:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_22 [2023-11-19 05:13:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_22 [2023-11-19 05:13:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2023-11-19 05:13:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2023-11-19 05:13:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2023-11-19 05:13:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2023-11-19 05:13:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2023-11-19 05:13:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2023-11-19 05:13:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2023-11-19 05:13:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2023-11-19 05:13:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 05:13:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 05:13:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2023-11-19 05:13:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2023-11-19 05:13:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 05:13:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 05:13:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2023-11-19 05:13:22,441 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2023-11-19 05:13:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 05:13:22,445 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 05:13:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-11-19 05:13:22,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-11-19 05:13:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:13:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:13:22,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:13:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2023-11-19 05:13:22,446 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2023-11-19 05:13:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2023-11-19 05:13:22,447 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2023-11-19 05:13:22,448 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 05:13:22,448 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 05:13:23,564 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:13:23,576 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:13:24,161 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:13:25,127 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___2FINAL: assume true; [2023-11-19 05:13:34,735 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:13:36,296 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:13:36,296 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:13:36,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:36 BoogieIcfgContainer [2023-11-19 05:13:36,310 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:13:36,312 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:13:36,312 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:13:36,315 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:13:36,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:13:17" (1/3) ... [2023-11-19 05:13:36,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e8dc48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:13:36, skipping insertion in model container [2023-11-19 05:13:36,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:21" (2/3) ... [2023-11-19 05:13:36,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e8dc48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:13:36, skipping insertion in model container [2023-11-19 05:13:36,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:36" (3/3) ... [2023-11-19 05:13:36,319 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2023-11-19 05:13:36,339 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:13:36,340 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:13:36,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:13:36,462 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;@49330ac2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:13:36,462 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:13:36,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 1824 states, 1168 states have (on average 1.3544520547945205) internal successors, (1582), 1209 states have internal predecessors, (1582), 529 states have call successors, (529), 127 states have call predecessors, (529), 125 states have return successors, (515), 504 states have call predecessors, (515), 515 states have call successors, (515) [2023-11-19 05:13:36,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 05:13:36,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:36,510 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:36,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:36,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:36,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1170981784, now seen corresponding path program 1 times [2023-11-19 05:13:36,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:13:36,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062991802] [2023-11-19 05:13:36,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:36,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:13:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:37,626 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 05:13:37,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:13:37,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062991802] [2023-11-19 05:13:37,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062991802] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:37,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:13:37,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:13:37,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900945117] [2023-11-19 05:13:37,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:37,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:13:37,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:13:37,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:13:37,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:13:37,705 INFO L87 Difference]: Start difference. First operand has 1824 states, 1168 states have (on average 1.3544520547945205) internal successors, (1582), 1209 states have internal predecessors, (1582), 529 states have call successors, (529), 127 states have call predecessors, (529), 125 states have return successors, (515), 504 states have call predecessors, (515), 515 states have call successors, (515) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-19 05:13:40,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:13:42,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:42,289 INFO L93 Difference]: Finished difference Result 5351 states and 7915 transitions. [2023-11-19 05:13:42,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:13:42,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 65 [2023-11-19 05:13:42,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:42,362 INFO L225 Difference]: With dead ends: 5351 [2023-11-19 05:13:42,363 INFO L226 Difference]: Without dead ends: 3512 [2023-11-19 05:13:42,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:13:42,396 INFO L413 NwaCegarLoop]: 2373 mSDtfsCounter, 2522 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2522 SdHoareTripleChecker+Valid, 4674 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:42,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2522 Valid, 4674 Invalid, 517 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-11-19 05:13:42,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3512 states. [2023-11-19 05:13:42,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3512 to 3509. [2023-11-19 05:13:42,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3509 states, 2274 states have (on average 1.3430079155672823) internal successors, (3054), 2317 states have internal predecessors, (3054), 989 states have call successors, (989), 246 states have call predecessors, (989), 245 states have return successors, (982), 960 states have call predecessors, (982), 982 states have call successors, (982) [2023-11-19 05:13:42,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3509 states to 3509 states and 5025 transitions. [2023-11-19 05:13:42,928 INFO L78 Accepts]: Start accepts. Automaton has 3509 states and 5025 transitions. Word has length 65 [2023-11-19 05:13:42,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:42,930 INFO L495 AbstractCegarLoop]: Abstraction has 3509 states and 5025 transitions. [2023-11-19 05:13:42,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-19 05:13:42,930 INFO L276 IsEmpty]: Start isEmpty. Operand 3509 states and 5025 transitions. [2023-11-19 05:13:42,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 05:13:42,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:42,945 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:42,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:13:42,945 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:42,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:42,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1030668795, now seen corresponding path program 1 times [2023-11-19 05:13:42,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:13:42,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796018635] [2023-11-19 05:13:42,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:42,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:13:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:43,595 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 05:13:43,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:13:43,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796018635] [2023-11-19 05:13:43,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796018635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:43,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:13:43,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:13:43,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029317415] [2023-11-19 05:13:43,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:43,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:13:43,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:13:43,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:13:43,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:13:43,607 INFO L87 Difference]: Start difference. First operand 3509 states and 5025 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 05:13:46,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:13:50,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:13:52,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:13:53,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:53,345 INFO L93 Difference]: Finished difference Result 10135 states and 14459 transitions. [2023-11-19 05:13:53,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:13:53,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 84 [2023-11-19 05:13:53,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:53,419 INFO L225 Difference]: With dead ends: 10135 [2023-11-19 05:13:53,419 INFO L226 Difference]: Without dead ends: 6644 [2023-11-19 05:13:53,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:13:53,449 INFO L413 NwaCegarLoop]: 2345 mSDtfsCounter, 2293 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2293 SdHoareTripleChecker+Valid, 4559 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:53,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2293 Valid, 4559 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 601 Invalid, 3 Unknown, 0 Unchecked, 9.2s Time] [2023-11-19 05:13:53,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6644 states. [2023-11-19 05:13:54,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6644 to 6611. [2023-11-19 05:13:54,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6611 states, 4271 states have (on average 1.3352844767033483) internal successors, (5703), 4352 states have internal predecessors, (5703), 1863 states have call successors, (1863), 477 states have call predecessors, (1863), 476 states have return successors, (1856), 1811 states have call predecessors, (1856), 1856 states have call successors, (1856) [2023-11-19 05:13:54,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6611 states to 6611 states and 9422 transitions. [2023-11-19 05:13:54,167 INFO L78 Accepts]: Start accepts. Automaton has 6611 states and 9422 transitions. Word has length 84 [2023-11-19 05:13:54,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:54,170 INFO L495 AbstractCegarLoop]: Abstraction has 6611 states and 9422 transitions. [2023-11-19 05:13:54,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 05:13:54,170 INFO L276 IsEmpty]: Start isEmpty. Operand 6611 states and 9422 transitions. [2023-11-19 05:13:54,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-19 05:13:54,177 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:54,177 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:54,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:13:54,178 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:54,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:54,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1077811007, now seen corresponding path program 1 times [2023-11-19 05:13:54,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:13:54,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220647583] [2023-11-19 05:13:54,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:54,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:13:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:54,628 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 05:13:54,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:13:54,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220647583] [2023-11-19 05:13:54,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220647583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:54,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:13:54,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:13:54,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467640454] [2023-11-19 05:13:54,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:54,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:13:54,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:13:54,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:13:54,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:13:54,632 INFO L87 Difference]: Start difference. First operand 6611 states and 9422 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 05:13:57,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:14:01,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:14:03,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []