./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d5f031-4ac4-4e17-8ff5-4880f776273c/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d5f031-4ac4-4e17-8ff5-4880f776273c/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_b3d5f031-4ac4-4e17-8ff5-4880f776273c/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d5f031-4ac4-4e17-8ff5-4880f776273c/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d5f031-4ac4-4e17-8ff5-4880f776273c/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_b3d5f031-4ac4-4e17-8ff5-4880f776273c/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 703e94f355bedf71f08615991c8952ad9d697212a5aadf602ce53b4c002ae155 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:11,163 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:11,285 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d5f031-4ac4-4e17-8ff5-4880f776273c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:09:11,296 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:11,297 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:11,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:11,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:11,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:11,338 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:11,343 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:11,344 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:11,345 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:11,345 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:11,347 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:09:11,348 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:11,348 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:11,348 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:09:11,349 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:09:11,349 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:11,350 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:09:11,350 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:09:11,351 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:09:11,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:11,352 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:11,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:09:11,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:11,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:11,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:11,355 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:11,355 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:11,356 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:11,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:11,357 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:11,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:11,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:11,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:11,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:11,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:11,359 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:09:11,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:09:11,359 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:11,359 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:11,360 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:11,360 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:11,360 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_b3d5f031-4ac4-4e17-8ff5-4880f776273c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d5f031-4ac4-4e17-8ff5-4880f776273c/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 703e94f355bedf71f08615991c8952ad9d697212a5aadf602ce53b4c002ae155 [2023-11-23 21:09:11,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:11,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:11,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:11,725 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:11,725 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:11,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d5f031-4ac4-4e17-8ff5-4880f776273c/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2023-11-23 21:09:14,964 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:15,653 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:15,654 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d5f031-4ac4-4e17-8ff5-4880f776273c/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2023-11-23 21:09:15,718 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d5f031-4ac4-4e17-8ff5-4880f776273c/bin/utaipan-verify-mE87zJ7Ire/data/6f49761a5/ce13b9f6fe0b40d79bc25902c0dba6a7/FLAG06c53c4a9 [2023-11-23 21:09:15,735 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d5f031-4ac4-4e17-8ff5-4880f776273c/bin/utaipan-verify-mE87zJ7Ire/data/6f49761a5/ce13b9f6fe0b40d79bc25902c0dba6a7 [2023-11-23 21:09:15,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:15,743 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:15,747 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:15,747 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:15,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:15,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:15" (1/1) ... [2023-11-23 21:09:15,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cfd5e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:15, skipping insertion in model container [2023-11-23 21:09:15,755 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:15" (1/1) ... [2023-11-23 21:09:16,021 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:16,693 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2023-11-23 21:09:16,693 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2023-11-23 21:09:17,507 WARN L635 FunctionHandler]: implicit declaration of function ldv_assume [2023-11-23 21:09:17,539 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_b3d5f031-4ac4-4e17-8ff5-4880f776273c/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183731,183744] [2023-11-23 21:09:19,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:19,556 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:19,704 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2023-11-23 21:09:19,705 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2023-11-23 21:09:19,707 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"); [5777] [2023-11-23 21:09:19,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5784] [2023-11-23 21:09:19,709 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)); [5791] [2023-11-23 21:09:19,710 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)); [5805-5806] [2023-11-23 21:09:19,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5879] [2023-11-23 21:09:19,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5882] [2023-11-23 21:09:19,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5885] [2023-11-23 21:09:19,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5888] [2023-11-23 21:09:19,717 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; incl %0": "+m" (v->counter)); [5932] [2023-11-23 21:09:19,717 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; decl %0": "+m" (v->counter)); [5939] [2023-11-23 21:09:19,718 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; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [5947-5948] [2023-11-23 21:09:19,718 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; incq %0": "=m" (v->counter): "m" (v->counter)); [5968] [2023-11-23 21:09:19,719 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; decq %0": "=m" (v->counter): "m" (v->counter)); [5975] [2023-11-23 21:09:19,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [6033] [2023-11-23 21:09:19,721 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [6036] [2023-11-23 21:09:19,721 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (val)); [6038] [2023-11-23 21:09:19,722 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [6043] [2023-11-23 21:09:19,722 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [6046] [2023-11-23 21:09:19,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [6048] [2023-11-23 21:09:19,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [6053] [2023-11-23 21:09:19,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [6056] [2023-11-23 21:09:19,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [6058] [2023-11-23 21:09:19,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [6063] [2023-11-23 21:09:19,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [6066] [2023-11-23 21:09:19,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (val)); [6068] [2023-11-23 21:09:19,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [6086] [2023-11-23 21:09:19,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [6089] [2023-11-23 21:09:19,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (- val)); [6091] [2023-11-23 21:09:19,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [6096] [2023-11-23 21:09:19,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [6099] [2023-11-23 21:09:19,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [6101] [2023-11-23 21:09:19,729 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [6106] [2023-11-23 21:09:19,729 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [6109] [2023-11-23 21:09:19,730 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [6111] [2023-11-23 21:09:19,730 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [6116] [2023-11-23 21:09:19,730 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [6119] [2023-11-23 21:09:19,732 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (- val)); [6121] [2023-11-23 21:09:19,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6238] [2023-11-23 21:09:19,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6245] [2023-11-23 21:09:19,755 WARN L635 FunctionHandler]: implicit declaration of function ldv_assume [2023-11-23 21:09:19,757 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_b3d5f031-4ac4-4e17-8ff5-4880f776273c/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183731,183744] [2023-11-23 21:09:19,768 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ (" addl %1,%0\n adcl $0xffff,%0": "=r" (sum): "r" (sum << 16), "0" (sum & 4294901760U)); [6644] [2023-11-23 21:09:19,849 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7291] [2023-11-23 21:09:19,850 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7319] [2023-11-23 21:09:19,851 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (sk->sk_err): : "memory", "cc"); [7339-7340] [2023-11-23 21:09:19,851 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (sk->sk_err): : "memory", "cc"); [7343-7344] [2023-11-23 21:09:19,852 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (sk->sk_err): : "memory", "cc"); [7347-7348] [2023-11-23 21:09:19,852 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (sk->sk_err): : "memory", "cc"); [7351-7352] [2023-11-23 21:09:19,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7504] [2023-11-23 21:09:19,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8883] [2023-11-23 21:09:20,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [10108] [2023-11-23 21:09:20,175 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [10111] [2023-11-23 21:09:20,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [10114] [2023-11-23 21:09:20,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [10117] [2023-11-23 21:09:20,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [10120] [2023-11-23 21:09:20,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((int *)arg): "ebx"); [10135-10136] [2023-11-23 21:09:20,179 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((int *)arg): "ebx"); [10139-10140] [2023-11-23 21:09:20,179 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((int *)arg): "ebx"); [10143-10144] [2023-11-23 21:09:20,179 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((int *)arg): "ebx"); [10147-10148] [2023-11-23 21:09:20,180 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((int *)arg): "ebx"); [10151-10152] [2023-11-23 21:09:20,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [11767] [2023-11-23 21:09:20,231 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; decq %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [11817-11818] [2023-11-23 21:09:20,232 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"); [11829-11830] [2023-11-23 21:09:20,232 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"); [11833-11834] [2023-11-23 21:09:20,232 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"); [11837-11838] [2023-11-23 21:09:20,232 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"); [11841-11842] [2023-11-23 21:09:20,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--net--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/1411/dscv_tempdir/dscv/ri/43_2a/net/unix/garbage.o.c.prepared"), "i" (191), "i" (12UL)); [12026-12027] [2023-11-23 21:09:20,277 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--net--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/1411/dscv_tempdir/dscv/ri/43_2a/net/unix/garbage.o.c.prepared"), "i" (194), "i" (12UL)); [12037-12038] [2023-11-23 21:09:20,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--net--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/1411/dscv_tempdir/dscv/ri/43_2a/net/unix/garbage.o.c.prepared"), "i" (207), "i" (12UL)); [12068-12069] [2023-11-23 21:09:20,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--net--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/1411/dscv_tempdir/dscv/ri/43_2a/net/unix/garbage.o.c.prepared"), "i" (285), "i" (12UL)); [12175-12176] [2023-11-23 21:09:20,288 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--net--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/1411/dscv_tempdir/dscv/ri/43_2a/net/unix/garbage.o.c.prepared"), "i" (373), "i" (12UL)); [12310-12311] [2023-11-23 21:09:20,288 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--net--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/1411/dscv_tempdir/dscv/ri/43_2a/net/unix/garbage.o.c.prepared"), "i" (374), "i" (12UL)); [12318-12319] [2023-11-23 21:09:20,291 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--net--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/1411/dscv_tempdir/dscv/ri/43_2a/net/unix/garbage.o.c.prepared"), "i" (439), "i" (12UL)); [12400-12401] [2023-11-23 21:09:20,318 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:20,535 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:20,535 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:20,535 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:20,535 WARN L675 CHandler]: The function ldv_is_err is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:20,535 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:20,536 WARN L675 CHandler]: The function ldv_assume is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:20,536 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:20,544 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:20,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:20 WrapperNode [2023-11-23 21:09:20,546 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:20,547 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:20,547 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:20,548 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:20,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:20" (1/1) ... [2023-11-23 21:09:20,679 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:20" (1/1) ... [2023-11-23 21:09:20,942 INFO L138 Inliner]: procedures = 456, calls = 2288, calls flagged for inlining = 219, calls inlined = 217, statements flattened = 7774 [2023-11-23 21:09:20,943 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:20,944 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:20,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:20,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:20,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:20" (1/1) ... [2023-11-23 21:09:20,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:20" (1/1) ... [2023-11-23 21:09:21,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:20" (1/1) ... [2023-11-23 21:09:21,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:20" (1/1) ... [2023-11-23 21:09:21,241 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:20" (1/1) ... [2023-11-23 21:09:21,352 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:20" (1/1) ... [2023-11-23 21:09:21,391 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:20" (1/1) ... [2023-11-23 21:09:21,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:20" (1/1) ... [2023-11-23 21:09:21,485 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:21,486 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:21,486 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:21,487 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:21,487 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:20" (1/1) ... [2023-11-23 21:09:21,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:21,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d5f031-4ac4-4e17-8ff5-4880f776273c/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:21,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d5f031-4ac4-4e17-8ff5-4880f776273c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:21,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d5f031-4ac4-4e17-8ff5-4880f776273c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-23 21:09:21,569 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-23 21:09:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-23 21:09:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure unix_gc [2023-11-23 21:09:21,570 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_gc [2023-11-23 21:09:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure unix_sysctl_unregister [2023-11-23 21:09:21,570 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_sysctl_unregister [2023-11-23 21:09:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-11-23 21:09:21,571 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-11-23 21:09:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2023-11-23 21:09:21,571 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2023-11-23 21:09:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-23 21:09:21,571 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-23 21:09:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure sock_sndtimeo [2023-11-23 21:09:21,572 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_sndtimeo [2023-11-23 21:09:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:09:21,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:09:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:09:21,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:09:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_addr [2023-11-23 21:09:21,573 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_addr [2023-11-23 21:09:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_lock [2023-11-23 21:09:21,574 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_lock [2023-11-23 21:09:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure unix_set_peek_off [2023-11-23 21:09:21,575 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_set_peek_off [2023-11-23 21:09:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-11-23 21:09:21,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-11-23 21:09:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_disconnected [2023-11-23 21:09:21,576 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_disconnected [2023-11-23 21:09:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2023-11-23 21:09:21,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2023-11-23 21:09:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy [2023-11-23 21:09:21,577 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy [2023-11-23 21:09:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure put_cmsg [2023-11-23 21:09:21,578 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cmsg [2023-11-23 21:09:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure unix_create1 [2023-11-23 21:09:21,578 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_create1 [2023-11-23 21:09:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_poll [2023-11-23 21:09:21,579 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_poll [2023-11-23 21:09:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:09:21,579 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:09:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2023-11-23 21:09:21,580 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2023-11-23 21:09:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure unix_recvq_full [2023-11-23 21:09:21,580 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_recvq_full [2023-11-23 21:09:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:09:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2023-11-23 21:09:21,580 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2023-11-23 21:09:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure unix_shutdown [2023-11-23 21:09:21,581 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_shutdown [2023-11-23 21:09:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 21:09:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure scan_children [2023-11-23 21:09:21,582 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_children [2023-11-23 21:09:21,582 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-11-23 21:09:21,582 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-11-23 21:09:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_fwd [2023-11-23 21:09:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_fwd [2023-11-23 21:09:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-23 21:09:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:09:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:09:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure unix_find_other [2023-11-23 21:09:21,584 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_find_other [2023-11-23 21:09:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure unix_scm_to_skb [2023-11-23 21:09:21,585 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_scm_to_skb [2023-11-23 21:09:21,588 INFO L130 BoogieDeclarations]: Found specification of procedure scm_send [2023-11-23 21:09:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_send [2023-11-23 21:09:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure sk_set_socket [2023-11-23 21:09:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_set_socket [2023-11-23 21:09:21,590 INFO L130 BoogieDeclarations]: Found specification of procedure unix_autobind [2023-11-23 21:09:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_autobind [2023-11-23 21:09:21,591 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 21:09:21,591 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 21:09:21,591 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_sock [2023-11-23 21:09:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_sock [2023-11-23 21:09:21,598 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2023-11-23 21:09:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2023-11-23 21:09:21,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:09:21,598 INFO L130 BoogieDeclarations]: Found specification of procedure unix_mkname [2023-11-23 21:09:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_mkname [2023-11-23 21:09:21,599 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 21:09:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 21:09:21,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:09:21,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:09:21,599 INFO L130 BoogieDeclarations]: Found specification of procedure sock_intr_errno [2023-11-23 21:09:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_intr_errno [2023-11-23 21:09:21,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:09:21,600 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_inc [2023-11-23 21:09:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_inc [2023-11-23 21:09:21,600 INFO L130 BoogieDeclarations]: Found specification of procedure unix_may_send [2023-11-23 21:09:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_may_send [2023-11-23 21:09:21,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:09:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:09:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2023-11-23 21:09:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2023-11-23 21:09:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2023-11-23 21:09:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2023-11-23 21:09:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure unix_listen [2023-11-23 21:09:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_listen [2023-11-23 21:09:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2023-11-23 21:09:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2023-11-23 21:09:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2023-11-23 21:09:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2023-11-23 21:09:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:09:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:09:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure seq_file_net [2023-11-23 21:09:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_file_net [2023-11-23 21:09:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure kiocb_to_siocb [2023-11-23 21:09:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure kiocb_to_siocb [2023-11-23 21:09:21,603 INFO L130 BoogieDeclarations]: Found specification of procedure init_peercred [2023-11-23 21:09:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure init_peercred [2023-11-23 21:09:21,603 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-23 21:09:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-23 21:09:21,603 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2023-11-23 21:09:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2023-11-23 21:09:21,604 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_sendmsg [2023-11-23 21:09:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_sendmsg [2023-11-23 21:09:21,604 INFO L130 BoogieDeclarations]: Found specification of procedure unix_stream_connect [2023-11-23 21:09:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_stream_connect [2023-11-23 21:09:21,604 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2023-11-23 21:09:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2023-11-23 21:09:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_dec [2023-11-23 21:09:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_dec [2023-11-23 21:09:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure unix_skb_len [2023-11-23 21:09:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_skb_len [2023-11-23 21:09:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure sock_flag [2023-11-23 21:09:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_flag [2023-11-23 21:09:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_unlock [2023-11-23 21:09:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_unlock [2023-11-23 21:09:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:09:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-23 21:09:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-23 21:09:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:09:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:09:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:09:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:09:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure unix_net_exit [2023-11-23 21:09:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_net_exit [2023-11-23 21:09:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure unix_detach_fds [2023-11-23 21:09:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_detach_fds [2023-11-23 21:09:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure touch_atime [2023-11-23 21:09:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure touch_atime [2023-11-23 21:09:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure unix_seq_stop [2023-11-23 21:09:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_seq_stop [2023-11-23 21:09:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-23 21:09:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-23 21:09:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-11-23 21:09:21,609 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-11-23 21:09:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_iovec [2023-11-23 21:09:21,609 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_iovec [2023-11-23 21:09:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:09:21,609 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:09:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 21:09:21,610 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 21:09:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure unix_accept [2023-11-23 21:09:21,610 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_accept [2023-11-23 21:09:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_recvmsg [2023-11-23 21:09:21,611 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_recvmsg [2023-11-23 21:09:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 21:09:21,611 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 21:09:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-11-23 21:09:21,611 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-11-23 21:09:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure unix_wait_for_peer [2023-11-23 21:09:21,612 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_wait_for_peer [2023-11-23 21:09:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure unix_hash_fold [2023-11-23 21:09:21,612 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_hash_fold [2023-11-23 21:09:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure scan_inflight [2023-11-23 21:09:21,612 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_inflight [2023-11-23 21:09:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-23 21:09:21,612 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-23 21:09:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:21,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:09:21,613 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:09:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2023-11-23 21:09:21,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2023-11-23 21:09:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2023-11-23 21:09:21,614 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2023-11-23 21:09:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2023-11-23 21:09:21,614 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2023-11-23 21:09:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:09:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:09:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:09:21,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:09:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2023-11-23 21:09:21,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2023-11-23 21:09:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 21:09:21,615 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 21:09:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure unix_peer_get [2023-11-23 21:09:21,615 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_peer_get [2023-11-23 21:09:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure unix_bind [2023-11-23 21:09:21,620 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_bind [2023-11-23 21:09:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure sock_hold [2023-11-23 21:09:21,620 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_hold [2023-11-23 21:09:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure unix_copy_addr [2023-11-23 21:09:21,621 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_copy_addr [2023-11-23 21:09:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-23 21:09:21,621 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-23 21:09:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-11-23 21:09:21,621 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-11-23 21:09:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:09:21,622 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:09:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:09:21,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:09:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure sock_poll_wait [2023-11-23 21:09:21,622 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_poll_wait [2023-11-23 21:09:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_find_socket_byname [2023-11-23 21:09:21,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_find_socket_byname [2023-11-23 21:09:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure sock_net [2023-11-23 21:09:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_net [2023-11-23 21:09:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-23 21:09:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-23 21:09:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:09:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:09:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure scm_recv [2023-11-23 21:09:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_recv [2023-11-23 21:09:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release [2023-11-23 21:09:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release [2023-11-23 21:09:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:09:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:09:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2023-11-23 21:09:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2023-11-23 21:09:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_getsockopt [2023-11-23 21:09:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_getsockopt [2023-11-23 21:09:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure sock_alloc_send_pskb [2023-11-23 21:09:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_alloc_send_pskb [2023-11-23 21:09:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:09:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset [2023-11-23 21:09:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset [2023-11-23 21:09:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:09:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:09:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure unix_get_socket [2023-11-23 21:09:21,626 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_get_socket [2023-11-23 21:09:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:09:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unhashed [2023-11-23 21:09:21,626 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unhashed [2023-11-23 21:09:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2023-11-23 21:09:21,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2023-11-23 21:09:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure get_pid [2023-11-23 21:09:21,627 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pid [2023-11-23 21:09:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2023-11-23 21:09:21,627 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2023-11-23 21:09:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure scm_set_cred [2023-11-23 21:09:21,627 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_set_cred [2023-11-23 21:09:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2023-11-23 21:09:21,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2023-11-23 21:09:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-23 21:09:21,628 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-23 21:09:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2023-11-23 21:09:21,628 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2023-11-23 21:09:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure sk_wake_async [2023-11-23 21:09:21,628 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_wake_async [2023-11-23 21:09:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:09:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-23 21:09:21,629 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-23 21:09:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_add_creds [2023-11-23 21:09:21,629 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_add_creds [2023-11-23 21:09:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:09:21,629 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:09:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-11-23 21:09:21,629 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-11-23 21:09:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure skb_free_datagram [2023-11-23 21:09:21,630 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_free_datagram [2023-11-23 21:09:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 21:09:21,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 21:09:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_from_iovec [2023-11-23 21:09:21,630 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_from_iovec [2023-11-23 21:09:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure sock_prot_inuse_add [2023-11-23 21:09:21,630 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_prot_inuse_add [2023-11-23 21:09:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-23 21:09:21,631 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-23 21:09:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure sk_next [2023-11-23 21:09:21,631 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_next [2023-11-23 21:09:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_insert_socket [2023-11-23 21:09:21,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_insert_socket [2023-11-23 21:09:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure sock_error [2023-11-23 21:09:21,632 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_error [2023-11-23 21:09:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_remove_socket [2023-11-23 21:09:21,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_remove_socket [2023-11-23 21:09:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure csum_partial [2023-11-23 21:09:21,632 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_partial [2023-11-23 21:09:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:09:21,632 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:09:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2023-11-23 21:09:21,633 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2023-11-23 21:09:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:09:21,633 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:09:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure scm_fp_dup [2023-11-23 21:09:21,633 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_fp_dup [2023-11-23 21:09:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure security_unix_may_send [2023-11-23 21:09:21,633 INFO L138 BoogieDeclarations]: Found implementation of procedure security_unix_may_send [2023-11-23 21:09:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:09:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_mmap [2023-11-23 21:09:21,634 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_mmap [2023-11-23 21:09:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy_cred [2023-11-23 21:09:21,634 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy_cred [2023-11-23 21:09:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:09:21,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:09:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2023-11-23 21:09:21,635 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2023-11-23 21:09:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up_sync_key [2023-11-23 21:09:21,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up_sync_key [2023-11-23 21:09:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2023-11-23 21:09:21,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2023-11-23 21:09:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure task_tgid [2023-11-23 21:09:21,635 INFO L138 BoogieDeclarations]: Found implementation of procedure task_tgid [2023-11-23 21:09:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-23 21:09:21,636 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-23 21:09:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-11-23 21:09:21,636 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-11-23 21:09:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_unix_gc [2023-11-23 21:09:21,636 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_unix_gc [2023-11-23 21:09:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2023-11-23 21:09:21,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2023-11-23 21:09:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure unix_next_socket [2023-11-23 21:09:21,637 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_next_socket [2023-11-23 21:09:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_setsockopt [2023-11-23 21:09:21,637 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_setsockopt [2023-11-23 21:09:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_bwd [2023-11-23 21:09:21,637 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_bwd [2023-11-23 21:09:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 21:09:21,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 21:09:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure unix_writable [2023-11-23 21:09:21,638 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_writable [2023-11-23 21:09:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2023-11-23 21:09:21,638 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2023-11-23 21:09:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure unix_socketpair [2023-11-23 21:09:21,638 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_socketpair [2023-11-23 21:09:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_sendpage [2023-11-23 21:09:21,638 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_sendpage [2023-11-23 21:09:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 21:09:21,639 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 21:09:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure unix_getname [2023-11-23 21:09:21,639 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_getname [2023-11-23 21:09:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure unix_ioctl [2023-11-23 21:09:21,639 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_ioctl [2023-11-23 21:09:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:09:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_enable [2023-11-23 21:09:21,640 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_enable [2023-11-23 21:09:22,782 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:22,788 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:23,100 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:09:28,872 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:32,235 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:32,235 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:09:32,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:32 BoogieIcfgContainer [2023-11-23 21:09:32,238 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:32,241 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:32,241 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:32,245 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:32,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:15" (1/3) ... [2023-11-23 21:09:32,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ab1c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:32, skipping insertion in model container [2023-11-23 21:09:32,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:20" (2/3) ... [2023-11-23 21:09:32,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ab1c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:32, skipping insertion in model container [2023-11-23 21:09:32,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:32" (3/3) ... [2023-11-23 21:09:32,248 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2023-11-23 21:09:32,271 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:32,271 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:09:32,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:32,401 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@4065c65b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:32,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:09:32,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 2128 states, 1270 states have (on average 1.3614173228346456) internal successors, (1729), 1372 states have internal predecessors, (1729), 699 states have call successors, (699), 158 states have call predecessors, (699), 157 states have return successors, (690), 674 states have call predecessors, (690), 690 states have call successors, (690) [2023-11-23 21:09:32,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-11-23 21:09:32,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:32,470 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:32,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:32,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:32,476 INFO L85 PathProgramCache]: Analyzing trace with hash -755177875, now seen corresponding path program 1 times [2023-11-23 21:09:32,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:32,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061498660] [2023-11-23 21:09:32,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:32,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:33,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1514 trivial. 0 not checked. [2023-11-23 21:09:33,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:33,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061498660] [2023-11-23 21:09:33,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061498660] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:33,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:33,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:33,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947968363] [2023-11-23 21:09:33,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:33,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:33,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:33,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:33,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:33,615 INFO L87 Difference]: Start difference. First operand has 2128 states, 1270 states have (on average 1.3614173228346456) internal successors, (1729), 1372 states have internal predecessors, (1729), 699 states have call successors, (699), 158 states have call predecessors, (699), 157 states have return successors, (690), 674 states have call predecessors, (690), 690 states have call successors, (690) Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-23 21:09:36,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:36,002 INFO L93 Difference]: Finished difference Result 6131 states and 8978 transitions. [2023-11-23 21:09:36,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:36,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 206 [2023-11-23 21:09:36,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:36,069 INFO L225 Difference]: With dead ends: 6131 [2023-11-23 21:09:36,070 INFO L226 Difference]: Without dead ends: 4023 [2023-11-23 21:09:36,092 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 [2023-11-23 21:09:36,096 INFO L413 NwaCegarLoop]: 2798 mSDtfsCounter, 2881 mSDsluCounter, 2669 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2881 SdHoareTripleChecker+Valid, 5467 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:36,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2881 Valid, 5467 Invalid, 681 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-23 21:09:36,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4023 states. [2023-11-23 21:09:36,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4023 to 4019. [2023-11-23 21:09:36,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4019 states, 2405 states have (on average 1.3467775467775467) internal successors, (3239), 2580 states have internal predecessors, (3239), 1303 states have call successors, (1303), 311 states have call predecessors, (1303), 310 states have return successors, (1302), 1273 states have call predecessors, (1302), 1302 states have call successors, (1302) [2023-11-23 21:09:36,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 5844 transitions. [2023-11-23 21:09:36,606 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 5844 transitions. Word has length 206 [2023-11-23 21:09:36,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:36,611 INFO L495 AbstractCegarLoop]: Abstraction has 4019 states and 5844 transitions. [2023-11-23 21:09:36,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-23 21:09:36,611 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 5844 transitions. [2023-11-23 21:09:36,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-23 21:09:36,628 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:36,628 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:36,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:09:36,629 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:36,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:36,630 INFO L85 PathProgramCache]: Analyzing trace with hash -720213649, now seen corresponding path program 1 times [2023-11-23 21:09:36,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:36,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706894598] [2023-11-23 21:09:36,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:36,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:37,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1514 trivial. 0 not checked. [2023-11-23 21:09:37,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:37,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706894598] [2023-11-23 21:09:37,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706894598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:37,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:37,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:37,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348001560] [2023-11-23 21:09:37,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:37,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:37,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:37,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:37,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:37,320 INFO L87 Difference]: Start difference. First operand 4019 states and 5844 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-23 21:09:40,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:40,192 INFO L93 Difference]: Finished difference Result 11376 states and 16439 transitions. [2023-11-23 21:09:40,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:40,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 207 [2023-11-23 21:09:40,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:40,272 INFO L225 Difference]: With dead ends: 11376 [2023-11-23 21:09:40,272 INFO L226 Difference]: Without dead ends: 7414 [2023-11-23 21:09:40,302 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 [2023-11-23 21:09:40,303 INFO L413 NwaCegarLoop]: 2968 mSDtfsCounter, 2601 mSDsluCounter, 2631 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2601 SdHoareTripleChecker+Valid, 5599 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:40,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2601 Valid, 5599 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 21:09:40,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7414 states. [2023-11-23 21:09:40,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7414 to 7409. [2023-11-23 21:09:40,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7409 states, 4427 states have (on average 1.3428958662751298) internal successors, (5945), 4766 states have internal predecessors, (5945), 2365 states have call successors, (2365), 617 states have call predecessors, (2365), 616 states have return successors, (2364), 2309 states have call predecessors, (2364), 2364 states have call successors, (2364) [2023-11-23 21:09:40,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7409 states to 7409 states and 10674 transitions. [2023-11-23 21:09:40,957 INFO L78 Accepts]: Start accepts. Automaton has 7409 states and 10674 transitions. Word has length 207 [2023-11-23 21:09:40,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:40,958 INFO L495 AbstractCegarLoop]: Abstraction has 7409 states and 10674 transitions. [2023-11-23 21:09:40,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-23 21:09:40,976 INFO L276 IsEmpty]: Start isEmpty. Operand 7409 states and 10674 transitions. [2023-11-23 21:09:40,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-23 21:09:40,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:40,982 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 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 21:09:40,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:09:40,982 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:40,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:40,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1106295602, now seen corresponding path program 1 times [2023-11-23 21:09:40,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:40,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206550533] [2023-11-23 21:09:40,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:40,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:41,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1514 trivial. 0 not checked. [2023-11-23 21:09:41,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:41,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206550533] [2023-11-23 21:09:41,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206550533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:41,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:41,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:41,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8220836] [2023-11-23 21:09:41,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:41,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:41,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:41,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:41,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:41,517 INFO L87 Difference]: Start difference. First operand 7409 states and 10674 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-23 21:09:44,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:44,642 INFO L93 Difference]: Finished difference Result 20035 states and 28760 transitions. [2023-11-23 21:09:44,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:44,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 213 [2023-11-23 21:09:44,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:44,761 INFO L225 Difference]: With dead ends: 20035 [2023-11-23 21:09:44,761 INFO L226 Difference]: Without dead ends: 12683 [2023-11-23 21:09:44,804 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 [2023-11-23 21:09:44,808 INFO L413 NwaCegarLoop]: 4590 mSDtfsCounter, 2869 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2869 SdHoareTripleChecker+Valid, 7218 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:44,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2869 Valid, 7218 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 21:09:44,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12683 states. [2023-11-23 21:09:45,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12683 to 12680. [2023-11-23 21:09:45,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12680 states, 7578 states have (on average 1.3415149115861704) internal successors, (10166), 8162 states have internal predecessors, (10166), 4000 states have call successors, (4000), 1102 states have call predecessors, (4000), 1101 states have return successors, (3999), 3904 states have call predecessors, (3999), 3999 states have call successors, (3999) [2023-11-23 21:09:45,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12680 states to 12680 states and 18165 transitions. [2023-11-23 21:09:45,624 INFO L78 Accepts]: Start accepts. Automaton has 12680 states and 18165 transitions. Word has length 213 [2023-11-23 21:09:45,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:45,625 INFO L495 AbstractCegarLoop]: Abstraction has 12680 states and 18165 transitions. [2023-11-23 21:09:45,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-23 21:09:45,625 INFO L276 IsEmpty]: Start isEmpty. Operand 12680 states and 18165 transitions. [2023-11-23 21:09:45,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-11-23 21:09:45,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:45,717 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 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, 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 21:09:45,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:09:45,717 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:45,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:45,718 INFO L85 PathProgramCache]: Analyzing trace with hash -852797798, now seen corresponding path program 1 times [2023-11-23 21:09:45,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:45,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597572650] [2023-11-23 21:09:45,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:45,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:47,591 INFO L134 CoverageAnalysis]: Checked inductivity of 4904 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4904 trivial. 0 not checked. [2023-11-23 21:09:47,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:47,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597572650] [2023-11-23 21:09:47,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597572650] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:47,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:47,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:09:47,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79928973] [2023-11-23 21:09:47,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:47,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:09:47,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:47,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:09:47,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:09:47,595 INFO L87 Difference]: Start difference. First operand 12680 states and 18165 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2023-11-23 21:09:51,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:51,240 INFO L93 Difference]: Finished difference Result 21013 states and 30024 transitions. [2023-11-23 21:09:51,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:09:51,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 354 [2023-11-23 21:09:51,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:51,447 INFO L225 Difference]: With dead ends: 21013 [2023-11-23 21:09:51,447 INFO L226 Difference]: Without dead ends: 21010 [2023-11-23 21:09:51,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:09:51,468 INFO L413 NwaCegarLoop]: 3131 mSDtfsCounter, 2358 mSDsluCounter, 5382 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2358 SdHoareTripleChecker+Valid, 8513 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:51,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2358 Valid, 8513 Invalid, 1031 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-23 21:09:51,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21010 states. [2023-11-23 21:09:52,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21010 to 20573. [2023-11-23 21:09:52,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20573 states, 12578 states have (on average 1.3523612657020194) internal successors, (17010), 13429 states have internal predecessors, (17010), 6026 states have call successors, (6026), 1980 states have call predecessors, (6026), 1968 states have return successors, (6222), 5844 states have call predecessors, (6222), 6025 states have call successors, (6222) [2023-11-23 21:09:53,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20573 states to 20573 states and 29258 transitions. [2023-11-23 21:09:53,026 INFO L78 Accepts]: Start accepts. Automaton has 20573 states and 29258 transitions. Word has length 354 [2023-11-23 21:09:53,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:53,028 INFO L495 AbstractCegarLoop]: Abstraction has 20573 states and 29258 transitions. [2023-11-23 21:09:53,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2023-11-23 21:09:53,028 INFO L276 IsEmpty]: Start isEmpty. Operand 20573 states and 29258 transitions. [2023-11-23 21:09:53,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2023-11-23 21:09:53,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:53,111 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 3, 2, 2, 2, 2, 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, 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, 1] [2023-11-23 21:09:53,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:09:53,111 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:53,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:53,112 INFO L85 PathProgramCache]: Analyzing trace with hash 707309200, now seen corresponding path program 1 times [2023-11-23 21:09:53,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:53,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71218408] [2023-11-23 21:09:53,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:53,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat