./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 9bd2c7ff 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_db01f95f-f492-4dc9-b3dc-828bdff6af6c/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db01f95f-f492-4dc9-b3dc-828bdff6af6c/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db01f95f-f492-4dc9-b3dc-828bdff6af6c/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db01f95f-f492-4dc9-b3dc-828bdff6af6c/bin/utaipan-verify-t7M7D8N6sZ/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_db01f95f-f492-4dc9-b3dc-828bdff6af6c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db01f95f-f492-4dc9-b3dc-828bdff6af6c/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 703e94f355bedf71f08615991c8952ad9d697212a5aadf602ce53b4c002ae155 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:18:00,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:18:00,914 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db01f95f-f492-4dc9-b3dc-828bdff6af6c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:18:00,926 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:18:00,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:18:00,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:18:00,982 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:18:00,983 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:18:00,984 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:18:00,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:18:00,993 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:18:00,993 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:18:00,994 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:18:00,996 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:18:00,997 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:18:00,997 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:18:00,998 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:18:00,998 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:18:00,999 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:18:00,999 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:18:01,000 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:18:01,001 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:18:01,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:18:01,002 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:18:01,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:18:01,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:18:01,004 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:18:01,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:18:01,005 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:18:01,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:18:01,007 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:18:01,007 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:18:01,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:18:01,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:18:01,008 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:18:01,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:18:01,009 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:18:01,009 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:18:01,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:18:01,010 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:18:01,010 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:18:01,011 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:18:01,011 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_db01f95f-f492-4dc9-b3dc-828bdff6af6c/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db01f95f-f492-4dc9-b3dc-828bdff6af6c/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 703e94f355bedf71f08615991c8952ad9d697212a5aadf602ce53b4c002ae155 [2023-11-19 05:18:01,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:18:01,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:18:01,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:18:01,360 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:18:01,361 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:18:01,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db01f95f-f492-4dc9-b3dc-828bdff6af6c/bin/utaipan-verify-t7M7D8N6sZ/../../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 [2023-11-19 05:18:04,591 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:18:05,388 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:18:05,390 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db01f95f-f492-4dc9-b3dc-828bdff6af6c/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 [2023-11-19 05:18:05,478 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db01f95f-f492-4dc9-b3dc-828bdff6af6c/bin/utaipan-verify-t7M7D8N6sZ/data/24bd8ddc3/dff2808043174f0ea96271147e69d13a/FLAGb5eaa9ec5 [2023-11-19 05:18:05,502 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db01f95f-f492-4dc9-b3dc-828bdff6af6c/bin/utaipan-verify-t7M7D8N6sZ/data/24bd8ddc3/dff2808043174f0ea96271147e69d13a [2023-11-19 05:18:05,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:18:05,515 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:18:05,517 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:18:05,518 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:18:05,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:18:05,526 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:05" (1/1) ... [2023-11-19 05:18:05,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4748b2ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:05, skipping insertion in model container [2023-11-19 05:18:05,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:05" (1/1) ... [2023-11-19 05:18:05,712 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:18:06,464 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2023-11-19 05:18:06,465 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] [2023-11-19 05:18:07,276 WARN L635 FunctionHandler]: implicit declaration of function ldv_assume [2023-11-19 05:18:07,312 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_db01f95f-f492-4dc9-b3dc-828bdff6af6c/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] [2023-11-19 05:18:09,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:18:09,602 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:18:09,774 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2023-11-19 05:18:09,774 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] [2023-11-19 05:18:09,776 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] [2023-11-19 05:18:09,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5784] [2023-11-19 05:18:09,780 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] [2023-11-19 05:18:09,781 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] [2023-11-19 05:18:09,785 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5879] [2023-11-19 05:18:09,785 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5882] [2023-11-19 05:18:09,786 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5885] [2023-11-19 05:18:09,786 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5888] [2023-11-19 05:18:09,788 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] [2023-11-19 05:18:09,788 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] [2023-11-19 05:18:09,789 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] [2023-11-19 05:18:09,790 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] [2023-11-19 05:18:09,790 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] [2023-11-19 05:18:09,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [6033] [2023-11-19 05:18:09,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [6036] [2023-11-19 05:18:09,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (val)); [6038] [2023-11-19 05:18:09,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [6043] [2023-11-19 05:18:09,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [6046] [2023-11-19 05:18:09,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [6048] [2023-11-19 05:18:09,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [6053] [2023-11-19 05:18:09,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [6056] [2023-11-19 05:18:09,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [6058] [2023-11-19 05:18:09,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [6063] [2023-11-19 05:18:09,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [6066] [2023-11-19 05:18:09,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (val)); [6068] [2023-11-19 05:18:09,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [6086] [2023-11-19 05:18:09,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [6089] [2023-11-19 05:18:09,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (- val)); [6091] [2023-11-19 05:18:09,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [6096] [2023-11-19 05:18:09,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [6099] [2023-11-19 05:18:09,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [6101] [2023-11-19 05:18:09,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [6106] [2023-11-19 05:18:09,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [6109] [2023-11-19 05:18:09,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [6111] [2023-11-19 05:18:09,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [6116] [2023-11-19 05:18:09,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [6119] [2023-11-19 05:18:09,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (- val)); [6121] [2023-11-19 05:18:09,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6238] [2023-11-19 05:18:09,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6245] [2023-11-19 05:18:09,816 WARN L635 FunctionHandler]: implicit declaration of function ldv_assume [2023-11-19 05:18:09,818 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_db01f95f-f492-4dc9-b3dc-828bdff6af6c/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] [2023-11-19 05:18:09,832 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] [2023-11-19 05:18:09,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7291] [2023-11-19 05:18:09,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7319] [2023-11-19 05:18:09,875 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] [2023-11-19 05:18:09,875 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] [2023-11-19 05:18:09,875 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] [2023-11-19 05:18:09,876 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] [2023-11-19 05:18:09,881 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7504] [2023-11-19 05:18:10,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8883] [2023-11-19 05:18:10,288 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] [2023-11-19 05:18:10,288 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] [2023-11-19 05:18:10,289 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] [2023-11-19 05:18:10,289 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] [2023-11-19 05:18:10,290 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] [2023-11-19 05:18:10,291 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] [2023-11-19 05:18:10,291 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] [2023-11-19 05:18:10,292 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] [2023-11-19 05:18:10,292 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] [2023-11-19 05:18:10,293 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] [2023-11-19 05:18:10,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [11767] [2023-11-19 05:18:10,364 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] [2023-11-19 05:18:10,365 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] [2023-11-19 05:18:10,365 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] [2023-11-19 05:18:10,366 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] [2023-11-19 05:18:10,366 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] [2023-11-19 05:18:10,385 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] [2023-11-19 05:18:10,386 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] [2023-11-19 05:18:10,388 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] [2023-11-19 05:18:10,396 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] [2023-11-19 05:18:10,402 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] [2023-11-19 05:18:10,403 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] [2023-11-19 05:18:10,408 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] [2023-11-19 05:18:10,442 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:18:10,688 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:18:10,689 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:18:10,689 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:18:10,689 WARN L675 CHandler]: The function ldv_is_err is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:18:10,689 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:18:10,690 WARN L675 CHandler]: The function ldv_assume is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:18:10,690 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:18:10,699 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:18:10,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10 WrapperNode [2023-11-19 05:18:10,700 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:18:10,702 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:18:10,702 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:18:10,702 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:18:10,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:10,823 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:11,075 INFO L138 Inliner]: procedures = 456, calls = 2288, calls flagged for inlining = 219, calls inlined = 217, statements flattened = 7774 [2023-11-19 05:18:11,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:18:11,077 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:18:11,077 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:18:11,077 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:18:11,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:11,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:11,144 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:11,145 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:11,427 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:11,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:11,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:11,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:11,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:18:11,543 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:18:11,544 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:18:11,544 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:18:11,545 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:11,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:18:11,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db01f95f-f492-4dc9-b3dc-828bdff6af6c/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:18:11,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db01f95f-f492-4dc9-b3dc-828bdff6af6c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:18:11,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db01f95f-f492-4dc9-b3dc-828bdff6af6c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:18:11,761 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-19 05:18:11,762 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-19 05:18:11,762 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-19 05:18:11,762 INFO L130 BoogieDeclarations]: Found specification of procedure unix_gc [2023-11-19 05:18:11,763 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_gc [2023-11-19 05:18:11,763 INFO L130 BoogieDeclarations]: Found specification of procedure unix_sysctl_unregister [2023-11-19 05:18:11,763 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_sysctl_unregister [2023-11-19 05:18:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-11-19 05:18:11,764 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-11-19 05:18:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2023-11-19 05:18:11,764 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2023-11-19 05:18:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-19 05:18:11,764 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-19 05:18:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure sock_sndtimeo [2023-11-19 05:18:11,765 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_sndtimeo [2023-11-19 05:18:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 05:18:11,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 05:18:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:18:11,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:18:11,766 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_addr [2023-11-19 05:18:11,766 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_addr [2023-11-19 05:18:11,766 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_lock [2023-11-19 05:18:11,766 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_lock [2023-11-19 05:18:11,766 INFO L130 BoogieDeclarations]: Found specification of procedure unix_set_peek_off [2023-11-19 05:18:11,767 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_set_peek_off [2023-11-19 05:18:11,767 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-11-19 05:18:11,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-11-19 05:18:11,768 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_disconnected [2023-11-19 05:18:11,769 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_disconnected [2023-11-19 05:18:11,769 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2023-11-19 05:18:11,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2023-11-19 05:18:11,769 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy [2023-11-19 05:18:11,770 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy [2023-11-19 05:18:11,770 INFO L130 BoogieDeclarations]: Found specification of procedure put_cmsg [2023-11-19 05:18:11,770 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cmsg [2023-11-19 05:18:11,770 INFO L130 BoogieDeclarations]: Found specification of procedure unix_create1 [2023-11-19 05:18:11,770 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_create1 [2023-11-19 05:18:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_poll [2023-11-19 05:18:11,771 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_poll [2023-11-19 05:18:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 05:18:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 05:18:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2023-11-19 05:18:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2023-11-19 05:18:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure unix_recvq_full [2023-11-19 05:18:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_recvq_full [2023-11-19 05:18:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 05:18:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2023-11-19 05:18:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2023-11-19 05:18:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure unix_shutdown [2023-11-19 05:18:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_shutdown [2023-11-19 05:18:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 05:18:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure scan_children [2023-11-19 05:18:11,774 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_children [2023-11-19 05:18:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-11-19 05:18:11,775 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-11-19 05:18:11,775 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_fwd [2023-11-19 05:18:11,775 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_fwd [2023-11-19 05:18:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-19 05:18:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 05:18:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:18:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure unix_find_other [2023-11-19 05:18:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_find_other [2023-11-19 05:18:11,777 INFO L130 BoogieDeclarations]: Found specification of procedure unix_scm_to_skb [2023-11-19 05:18:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_scm_to_skb [2023-11-19 05:18:11,778 INFO L130 BoogieDeclarations]: Found specification of procedure scm_send [2023-11-19 05:18:11,779 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_send [2023-11-19 05:18:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure sk_set_socket [2023-11-19 05:18:11,782 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_set_socket [2023-11-19 05:18:11,782 INFO L130 BoogieDeclarations]: Found specification of procedure unix_autobind [2023-11-19 05:18:11,782 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_autobind [2023-11-19 05:18:11,782 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 05:18:11,783 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 05:18:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_sock [2023-11-19 05:18:11,784 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_sock [2023-11-19 05:18:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2023-11-19 05:18:11,790 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2023-11-19 05:18:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:18:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure unix_mkname [2023-11-19 05:18:11,791 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_mkname [2023-11-19 05:18:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 05:18:11,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 05:18:11,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:18:11,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 05:18:11,793 INFO L130 BoogieDeclarations]: Found specification of procedure sock_intr_errno [2023-11-19 05:18:11,793 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_intr_errno [2023-11-19 05:18:11,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:18:11,793 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_inc [2023-11-19 05:18:11,793 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_inc [2023-11-19 05:18:11,793 INFO L130 BoogieDeclarations]: Found specification of procedure unix_may_send [2023-11-19 05:18:11,793 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_may_send [2023-11-19 05:18:11,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 05:18:11,794 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 05:18:11,794 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2023-11-19 05:18:11,794 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2023-11-19 05:18:11,794 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2023-11-19 05:18:11,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2023-11-19 05:18:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure unix_listen [2023-11-19 05:18:11,795 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_listen [2023-11-19 05:18:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2023-11-19 05:18:11,795 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2023-11-19 05:18:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2023-11-19 05:18:11,795 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2023-11-19 05:18:11,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 05:18:11,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 05:18:11,796 INFO L130 BoogieDeclarations]: Found specification of procedure seq_file_net [2023-11-19 05:18:11,796 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_file_net [2023-11-19 05:18:11,796 INFO L130 BoogieDeclarations]: Found specification of procedure kiocb_to_siocb [2023-11-19 05:18:11,796 INFO L138 BoogieDeclarations]: Found implementation of procedure kiocb_to_siocb [2023-11-19 05:18:11,797 INFO L130 BoogieDeclarations]: Found specification of procedure init_peercred [2023-11-19 05:18:11,798 INFO L138 BoogieDeclarations]: Found implementation of procedure init_peercred [2023-11-19 05:18:11,798 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-19 05:18:11,798 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-19 05:18:11,798 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2023-11-19 05:18:11,799 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2023-11-19 05:18:11,799 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_sendmsg [2023-11-19 05:18:11,799 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_sendmsg [2023-11-19 05:18:11,799 INFO L130 BoogieDeclarations]: Found specification of procedure unix_stream_connect [2023-11-19 05:18:11,799 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_stream_connect [2023-11-19 05:18:11,799 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2023-11-19 05:18:11,800 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2023-11-19 05:18:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_dec [2023-11-19 05:18:11,800 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_dec [2023-11-19 05:18:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure unix_skb_len [2023-11-19 05:18:11,800 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_skb_len [2023-11-19 05:18:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure sock_flag [2023-11-19 05:18:11,801 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_flag [2023-11-19 05:18:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_unlock [2023-11-19 05:18:11,801 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_unlock [2023-11-19 05:18:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:18:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-19 05:18:11,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-19 05:18:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:18:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:18:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 05:18:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:18:11,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:18:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure unix_net_exit [2023-11-19 05:18:11,802 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_net_exit [2023-11-19 05:18:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure unix_detach_fds [2023-11-19 05:18:11,803 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_detach_fds [2023-11-19 05:18:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure touch_atime [2023-11-19 05:18:11,803 INFO L138 BoogieDeclarations]: Found implementation of procedure touch_atime [2023-11-19 05:18:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure unix_seq_stop [2023-11-19 05:18:11,803 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_seq_stop [2023-11-19 05:18:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-19 05:18:11,804 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-19 05:18:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-11-19 05:18:11,804 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-11-19 05:18:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_iovec [2023-11-19 05:18:11,804 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_iovec [2023-11-19 05:18:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 05:18:11,805 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 05:18:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 05:18:11,805 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 05:18:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure unix_accept [2023-11-19 05:18:11,805 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_accept [2023-11-19 05:18:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_recvmsg [2023-11-19 05:18:11,806 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_recvmsg [2023-11-19 05:18:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 05:18:11,806 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 05:18:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-11-19 05:18:11,807 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-11-19 05:18:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure unix_wait_for_peer [2023-11-19 05:18:11,807 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_wait_for_peer [2023-11-19 05:18:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure unix_hash_fold [2023-11-19 05:18:11,807 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_hash_fold [2023-11-19 05:18:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure scan_inflight [2023-11-19 05:18:11,808 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_inflight [2023-11-19 05:18:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-19 05:18:11,808 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-19 05:18:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:18:11,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:18:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 05:18:11,809 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 05:18:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2023-11-19 05:18:11,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2023-11-19 05:18:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2023-11-19 05:18:11,809 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2023-11-19 05:18:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2023-11-19 05:18:11,810 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2023-11-19 05:18:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:18:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:18:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:18:11,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:18:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2023-11-19 05:18:11,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2023-11-19 05:18:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-19 05:18:11,811 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-19 05:18:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure unix_peer_get [2023-11-19 05:18:11,811 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_peer_get [2023-11-19 05:18:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure unix_bind [2023-11-19 05:18:11,811 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_bind [2023-11-19 05:18:11,813 INFO L130 BoogieDeclarations]: Found specification of procedure sock_hold [2023-11-19 05:18:11,817 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_hold [2023-11-19 05:18:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure unix_copy_addr [2023-11-19 05:18:11,817 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_copy_addr [2023-11-19 05:18:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-19 05:18:11,817 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-19 05:18:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-11-19 05:18:11,818 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-11-19 05:18:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 05:18:11,818 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 05:18:11,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 05:18:11,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 05:18:11,820 INFO L130 BoogieDeclarations]: Found specification of procedure sock_poll_wait [2023-11-19 05:18:11,820 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_poll_wait [2023-11-19 05:18:11,821 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_find_socket_byname [2023-11-19 05:18:11,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_find_socket_byname [2023-11-19 05:18:11,821 INFO L130 BoogieDeclarations]: Found specification of procedure sock_net [2023-11-19 05:18:11,821 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_net [2023-11-19 05:18:11,821 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-19 05:18:11,821 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-19 05:18:11,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:18:11,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:18:11,822 INFO L130 BoogieDeclarations]: Found specification of procedure scm_recv [2023-11-19 05:18:11,822 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_recv [2023-11-19 05:18:11,822 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release [2023-11-19 05:18:11,822 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release [2023-11-19 05:18:11,822 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:18:11,823 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:18:11,823 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2023-11-19 05:18:11,823 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2023-11-19 05:18:11,823 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_getsockopt [2023-11-19 05:18:11,823 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_getsockopt [2023-11-19 05:18:11,823 INFO L130 BoogieDeclarations]: Found specification of procedure sock_alloc_send_pskb [2023-11-19 05:18:11,823 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_alloc_send_pskb [2023-11-19 05:18:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:18:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset [2023-11-19 05:18:11,824 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset [2023-11-19 05:18:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 05:18:11,824 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 05:18:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure unix_get_socket [2023-11-19 05:18:11,824 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_get_socket [2023-11-19 05:18:11,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:18:11,825 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unhashed [2023-11-19 05:18:11,825 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unhashed [2023-11-19 05:18:11,825 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2023-11-19 05:18:11,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2023-11-19 05:18:11,825 INFO L130 BoogieDeclarations]: Found specification of procedure get_pid [2023-11-19 05:18:11,825 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pid [2023-11-19 05:18:11,826 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2023-11-19 05:18:11,826 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2023-11-19 05:18:11,826 INFO L130 BoogieDeclarations]: Found specification of procedure scm_set_cred [2023-11-19 05:18:11,826 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_set_cred [2023-11-19 05:18:11,826 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2023-11-19 05:18:11,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2023-11-19 05:18:11,826 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-19 05:18:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-19 05:18:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2023-11-19 05:18:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2023-11-19 05:18:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure sk_wake_async [2023-11-19 05:18:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_wake_async [2023-11-19 05:18:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:18:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 05:18:11,828 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 05:18:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_add_creds [2023-11-19 05:18:11,828 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_add_creds [2023-11-19 05:18:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:18:11,828 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:18:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-11-19 05:18:11,829 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-11-19 05:18:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure skb_free_datagram [2023-11-19 05:18:11,829 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_free_datagram [2023-11-19 05:18:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 05:18:11,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 05:18:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_from_iovec [2023-11-19 05:18:11,829 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_from_iovec [2023-11-19 05:18:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure sock_prot_inuse_add [2023-11-19 05:18:11,830 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_prot_inuse_add [2023-11-19 05:18:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-19 05:18:11,830 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-19 05:18:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure sk_next [2023-11-19 05:18:11,830 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_next [2023-11-19 05:18:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_insert_socket [2023-11-19 05:18:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_insert_socket [2023-11-19 05:18:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure sock_error [2023-11-19 05:18:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_error [2023-11-19 05:18:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_remove_socket [2023-11-19 05:18:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_remove_socket [2023-11-19 05:18:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure csum_partial [2023-11-19 05:18:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_partial [2023-11-19 05:18:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 05:18:11,832 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 05:18:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2023-11-19 05:18:11,832 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2023-11-19 05:18:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:18:11,832 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:18:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure scm_fp_dup [2023-11-19 05:18:11,833 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_fp_dup [2023-11-19 05:18:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure security_unix_may_send [2023-11-19 05:18:11,833 INFO L138 BoogieDeclarations]: Found implementation of procedure security_unix_may_send [2023-11-19 05:18:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:18:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_mmap [2023-11-19 05:18:11,833 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_mmap [2023-11-19 05:18:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy_cred [2023-11-19 05:18:11,834 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy_cred [2023-11-19 05:18:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:18:11,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:18:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2023-11-19 05:18:11,834 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2023-11-19 05:18:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up_sync_key [2023-11-19 05:18:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up_sync_key [2023-11-19 05:18:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2023-11-19 05:18:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2023-11-19 05:18:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure task_tgid [2023-11-19 05:18:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure task_tgid [2023-11-19 05:18:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-19 05:18:11,836 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-19 05:18:11,836 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-11-19 05:18:11,836 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-11-19 05:18:11,836 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_unix_gc [2023-11-19 05:18:11,836 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_unix_gc [2023-11-19 05:18:11,836 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2023-11-19 05:18:11,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2023-11-19 05:18:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure unix_next_socket [2023-11-19 05:18:11,837 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_next_socket [2023-11-19 05:18:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_setsockopt [2023-11-19 05:18:11,837 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_setsockopt [2023-11-19 05:18:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_bwd [2023-11-19 05:18:11,837 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_bwd [2023-11-19 05:18:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-19 05:18:11,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-19 05:18:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure unix_writable [2023-11-19 05:18:11,838 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_writable [2023-11-19 05:18:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2023-11-19 05:18:11,838 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2023-11-19 05:18:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure unix_socketpair [2023-11-19 05:18:11,839 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_socketpair [2023-11-19 05:18:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_sendpage [2023-11-19 05:18:11,839 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_sendpage [2023-11-19 05:18:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 05:18:11,840 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 05:18:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure unix_getname [2023-11-19 05:18:11,841 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_getname [2023-11-19 05:18:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure unix_ioctl [2023-11-19 05:18:11,841 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_ioctl [2023-11-19 05:18:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:18:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_enable [2023-11-19 05:18:11,841 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_enable [2023-11-19 05:18:13,027 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:18:13,040 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:18:13,468 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:18:22,160 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:18:26,129 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:18:26,129 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:18:26,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:26 BoogieIcfgContainer [2023-11-19 05:18:26,146 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:18:26,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:18:26,149 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:18:26,153 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:18:26,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:18:05" (1/3) ... [2023-11-19 05:18:26,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1b602d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:26, skipping insertion in model container [2023-11-19 05:18:26,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (2/3) ... [2023-11-19 05:18:26,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1b602d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:26, skipping insertion in model container [2023-11-19 05:18:26,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:26" (3/3) ... [2023-11-19 05:18:26,158 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 [2023-11-19 05:18:26,181 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:18:26,181 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:18:26,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:18:26,333 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;@1590c03c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:18:26,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:18:26,350 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) [2023-11-19 05:18:26,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-11-19 05:18:26,408 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:18:26,409 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] [2023-11-19 05:18:26,411 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:18:26,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:18:26,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1801628684, now seen corresponding path program 1 times [2023-11-19 05:18:26,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:18:26,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497727906] [2023-11-19 05:18:26,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:26,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:18:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:18:27,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1514 trivial. 0 not checked. [2023-11-19 05:18:27,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:18:27,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497727906] [2023-11-19 05:18:27,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497727906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:18:27,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:18:27,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:18:27,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124947344] [2023-11-19 05:18:27,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:18:27,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:18:27,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:18:27,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:18:27,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:18:27,616 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) [2023-11-19 05:18:30,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:18:30,609 INFO L93 Difference]: Finished difference Result 6131 states and 8978 transitions. [2023-11-19 05:18:30,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:18:30,613 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 [2023-11-19 05:18:30,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:18:30,690 INFO L225 Difference]: With dead ends: 6131 [2023-11-19 05:18:30,691 INFO L226 Difference]: Without dead ends: 4023 [2023-11-19 05:18:30,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:18:30,724 INFO L413 NwaCegarLoop]: 2798 mSDtfsCounter, 2881 mSDsluCounter, 2669 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.5s IncrementalHoareTripleChecker+Time [2023-11-19 05:18:30,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2881 Valid, 5467 Invalid, 681 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-19 05:18:30,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4023 states. [2023-11-19 05:18:31,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4023 to 4019. [2023-11-19 05:18:31,138 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) [2023-11-19 05:18:31,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 5844 transitions. [2023-11-19 05:18:31,196 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 5844 transitions. Word has length 206 [2023-11-19 05:18:31,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:18:31,202 INFO L495 AbstractCegarLoop]: Abstraction has 4019 states and 5844 transitions. [2023-11-19 05:18:31,202 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) [2023-11-19 05:18:31,202 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 5844 transitions. [2023-11-19 05:18:31,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-19 05:18:31,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:18:31,217 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] [2023-11-19 05:18:31,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:18:31,218 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:18:31,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:18:31,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1887936962, now seen corresponding path program 1 times [2023-11-19 05:18:31,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:18:31,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238818750] [2023-11-19 05:18:31,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:31,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:18:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:18:31,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1514 trivial. 0 not checked. [2023-11-19 05:18:31,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:18:31,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238818750] [2023-11-19 05:18:31,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238818750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:18:31,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:18:31,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:18:31,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331100291] [2023-11-19 05:18:31,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:18:31,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:18:31,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:18:31,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:18:31,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:18:31,875 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) [2023-11-19 05:18:34,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:18:34,632 INFO L93 Difference]: Finished difference Result 11376 states and 16439 transitions. [2023-11-19 05:18:34,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:18:34,633 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 [2023-11-19 05:18:34,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:18:34,731 INFO L225 Difference]: With dead ends: 11376 [2023-11-19 05:18:34,732 INFO L226 Difference]: Without dead ends: 7414 [2023-11-19 05:18:34,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:18:34,761 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, 2.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:18:34,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2601 Valid, 5599 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-19 05:18:34,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7414 states. [2023-11-19 05:18:35,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7414 to 7409. [2023-11-19 05:18:35,482 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) [2023-11-19 05:18:35,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7409 states to 7409 states and 10674 transitions. [2023-11-19 05:18:35,569 INFO L78 Accepts]: Start accepts. Automaton has 7409 states and 10674 transitions. Word has length 207 [2023-11-19 05:18:35,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:18:35,570 INFO L495 AbstractCegarLoop]: Abstraction has 7409 states and 10674 transitions. [2023-11-19 05:18:35,581 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) [2023-11-19 05:18:35,590 INFO L276 IsEmpty]: Start isEmpty. Operand 7409 states and 10674 transitions. [2023-11-19 05:18:35,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-19 05:18:35,598 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:18:35,598 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] [2023-11-19 05:18:35,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:18:35,599 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:18:35,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:18:35,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1748014853, now seen corresponding path program 1 times [2023-11-19 05:18:35,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:18:35,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410333084] [2023-11-19 05:18:35,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:35,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:18:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:18:36,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1514 trivial. 0 not checked. [2023-11-19 05:18:36,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:18:36,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410333084] [2023-11-19 05:18:36,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410333084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:18:36,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:18:36,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:18:36,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088821924] [2023-11-19 05:18:36,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:18:36,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:18:36,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:18:36,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:18:36,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:18:36,314 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) [2023-11-19 05:18:39,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:18:39,368 INFO L93 Difference]: Finished difference Result 20035 states and 28760 transitions. [2023-11-19 05:18:39,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:18:39,369 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 [2023-11-19 05:18:39,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:18:39,497 INFO L225 Difference]: With dead ends: 20035 [2023-11-19 05:18:39,497 INFO L226 Difference]: Without dead ends: 12683 [2023-11-19 05:18:39,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:18:39,557 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 [2023-11-19 05:18:39,558 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] [2023-11-19 05:18:39,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12683 states. [2023-11-19 05:18:40,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12683 to 12680. [2023-11-19 05:18:40,514 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) [2023-11-19 05:18:40,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12680 states to 12680 states and 18165 transitions. [2023-11-19 05:18:40,832 INFO L78 Accepts]: Start accepts. Automaton has 12680 states and 18165 transitions. Word has length 213 [2023-11-19 05:18:40,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:18:40,834 INFO L495 AbstractCegarLoop]: Abstraction has 12680 states and 18165 transitions. [2023-11-19 05:18:40,834 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) [2023-11-19 05:18:40,834 INFO L276 IsEmpty]: Start isEmpty. Operand 12680 states and 18165 transitions. [2023-11-19 05:18:40,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-19 05:18:40,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:18:40,860 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 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] [2023-11-19 05:18:40,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:18:40,860 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:18:40,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:18:40,863 INFO L85 PathProgramCache]: Analyzing trace with hash 2144312269, now seen corresponding path program 1 times [2023-11-19 05:18:40,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:18:40,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770819094] [2023-11-19 05:18:40,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:40,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:18:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:18:43,385 INFO L134 CoverageAnalysis]: Checked inductivity of 4906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4906 trivial. 0 not checked. [2023-11-19 05:18:43,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:18:43,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770819094] [2023-11-19 05:18:43,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770819094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:18:43,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:18:43,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:18:43,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422052253] [2023-11-19 05:18:43,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:18:43,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:18:43,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:18:43,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:18:43,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:18:43,390 INFO L87 Difference]: Start difference. First operand 12680 states and 18165 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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)