./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9c4bda-db60-48fb-ac71-3368f190ffa8/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9c4bda-db60-48fb-ac71-3368f190ffa8/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9c4bda-db60-48fb-ac71-3368f190ffa8/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9c4bda-db60-48fb-ac71-3368f190ffa8/bin/utaipan-verify-NcY6lQBIFX/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_3f9c4bda-db60-48fb-ac71-3368f190ffa8/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9c4bda-db60-48fb-ac71-3368f190ffa8/bin/utaipan-verify-NcY6lQBIFX --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-cf1a783 [2023-11-12 00:47:59,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:47:59,211 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9c4bda-db60-48fb-ac71-3368f190ffa8/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:47:59,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:47:59,228 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:47:59,265 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:47:59,266 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:47:59,267 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:47:59,268 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:47:59,273 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:47:59,274 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:47:59,274 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:47:59,275 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:47:59,277 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:47:59,277 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:47:59,278 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:47:59,278 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:47:59,278 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:47:59,279 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:47:59,279 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:47:59,280 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:47:59,280 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:47:59,282 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:47:59,282 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:47:59,282 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:47:59,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:47:59,283 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:47:59,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:47:59,284 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:47:59,285 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:47:59,286 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:47:59,286 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:47:59,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:47:59,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:59,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:47:59,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:47:59,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:47:59,288 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:47:59,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:47:59,288 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:47:59,289 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:47:59,289 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:47:59,289 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_3f9c4bda-db60-48fb-ac71-3368f190ffa8/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9c4bda-db60-48fb-ac71-3368f190ffa8/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 703e94f355bedf71f08615991c8952ad9d697212a5aadf602ce53b4c002ae155 [2023-11-12 00:47:59,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:47:59,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:47:59,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:47:59,610 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:47:59,610 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:47:59,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9c4bda-db60-48fb-ac71-3368f190ffa8/bin/utaipan-verify-NcY6lQBIFX/../../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 [2023-11-12 00:48:02,968 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:48:03,740 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:48:03,742 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9c4bda-db60-48fb-ac71-3368f190ffa8/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 [2023-11-12 00:48:03,832 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9c4bda-db60-48fb-ac71-3368f190ffa8/bin/utaipan-verify-NcY6lQBIFX/data/c96f6d11d/ba3021b52b324c8d88da76a063f72755/FLAG9f61916c5 [2023-11-12 00:48:03,851 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9c4bda-db60-48fb-ac71-3368f190ffa8/bin/utaipan-verify-NcY6lQBIFX/data/c96f6d11d/ba3021b52b324c8d88da76a063f72755 [2023-11-12 00:48:03,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:48:03,856 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:48:03,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:03,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:48:03,866 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:48:03,867 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:03" (1/1) ... [2023-11-12 00:48:03,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e7aa869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:03, skipping insertion in model container [2023-11-12 00:48:03,869 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:03" (1/1) ... [2023-11-12 00:48:04,178 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:48:05,001 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2023-11-12 00:48:05,002 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2023-11-12 00:48:05,833 WARN L635 FunctionHandler]: implicit declaration of function ldv_assume [2023-11-12 00:48:05,857 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_3f9c4bda-db60-48fb-ac71-3368f190ffa8/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] [2023-11-12 00:48:07,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:08,061 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:48:08,210 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2023-11-12 00:48:08,211 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2023-11-12 00:48:08,214 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] [2023-11-12 00:48:08,216 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5784] [2023-11-12 00:48:08,217 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] [2023-11-12 00:48:08,218 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] [2023-11-12 00:48:08,222 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5879] [2023-11-12 00:48:08,223 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5882] [2023-11-12 00:48:08,223 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5885] [2023-11-12 00:48:08,224 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5888] [2023-11-12 00:48:08,226 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] [2023-11-12 00:48:08,226 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] [2023-11-12 00:48:08,227 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] [2023-11-12 00:48:08,228 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] [2023-11-12 00:48:08,228 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] [2023-11-12 00:48:08,358 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [6033] [2023-11-12 00:48:08,358 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [6036] [2023-11-12 00:48:08,359 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (val)); [6038] [2023-11-12 00:48:08,359 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [6043] [2023-11-12 00:48:08,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [6046] [2023-11-12 00:48:08,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [6048] [2023-11-12 00:48:08,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [6053] [2023-11-12 00:48:08,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [6056] [2023-11-12 00:48:08,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [6058] [2023-11-12 00:48:08,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [6063] [2023-11-12 00:48:08,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [6066] [2023-11-12 00:48:08,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (val)); [6068] [2023-11-12 00:48:08,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [6086] [2023-11-12 00:48:08,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [6089] [2023-11-12 00:48:08,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (- val)); [6091] [2023-11-12 00:48:08,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [6096] [2023-11-12 00:48:08,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [6099] [2023-11-12 00:48:08,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [6101] [2023-11-12 00:48:08,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [6106] [2023-11-12 00:48:08,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [6109] [2023-11-12 00:48:08,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [6111] [2023-11-12 00:48:08,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [6116] [2023-11-12 00:48:08,366 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [6119] [2023-11-12 00:48:08,366 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (- val)); [6121] [2023-11-12 00:48:08,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6238] [2023-11-12 00:48:08,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6245] [2023-11-12 00:48:08,382 WARN L635 FunctionHandler]: implicit declaration of function ldv_assume [2023-11-12 00:48:08,385 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_3f9c4bda-db60-48fb-ac71-3368f190ffa8/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] [2023-11-12 00:48:08,405 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] [2023-11-12 00:48:08,460 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7291] [2023-11-12 00:48:08,462 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7319] [2023-11-12 00:48:08,463 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] [2023-11-12 00:48:08,463 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] [2023-11-12 00:48:08,464 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] [2023-11-12 00:48:08,465 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] [2023-11-12 00:48:08,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7504] [2023-11-12 00:48:08,646 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8883] [2023-11-12 00:48:08,839 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] [2023-11-12 00:48:08,840 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] [2023-11-12 00:48:08,840 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] [2023-11-12 00:48:08,840 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] [2023-11-12 00:48:08,842 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] [2023-11-12 00:48:08,843 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] [2023-11-12 00:48:08,843 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] [2023-11-12 00:48:08,844 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] [2023-11-12 00:48:08,846 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] [2023-11-12 00:48:08,846 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] [2023-11-12 00:48:08,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [11767] [2023-11-12 00:48:08,908 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] [2023-11-12 00:48:08,909 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] [2023-11-12 00:48:08,910 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] [2023-11-12 00:48:08,910 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] [2023-11-12 00:48:08,910 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] [2023-11-12 00:48:08,924 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] [2023-11-12 00:48:08,924 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] [2023-11-12 00:48:08,926 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] [2023-11-12 00:48:08,932 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] [2023-11-12 00:48:08,937 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] [2023-11-12 00:48:08,938 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] [2023-11-12 00:48:08,942 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] [2023-11-12 00:48:08,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:09,219 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:48:09,219 WARN L672 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:48:09,220 WARN L672 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:48:09,220 WARN L672 CHandler]: The function ldv_is_err is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:48:09,220 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:48:09,220 WARN L672 CHandler]: The function ldv_assume is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:48:09,220 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:48:09,228 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:48:09,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:09 WrapperNode [2023-11-12 00:48:09,230 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:09,231 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:09,231 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:48:09,232 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:48:09,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:09" (1/1) ... [2023-11-12 00:48:09,356 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:09" (1/1) ... [2023-11-12 00:48:09,590 INFO L138 Inliner]: procedures = 456, calls = 2288, calls flagged for inlining = 219, calls inlined = 217, statements flattened = 7774 [2023-11-12 00:48:09,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:09,591 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:48:09,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:48:09,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:48:09,604 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:09" (1/1) ... [2023-11-12 00:48:09,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:09" (1/1) ... [2023-11-12 00:48:09,652 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:09" (1/1) ... [2023-11-12 00:48:09,666 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:09" (1/1) ... [2023-11-12 00:48:09,980 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:09" (1/1) ... [2023-11-12 00:48:10,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:09" (1/1) ... [2023-11-12 00:48:10,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:09" (1/1) ... [2023-11-12 00:48:10,107 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:09" (1/1) ... [2023-11-12 00:48:10,168 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:48:10,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:48:10,170 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:48:10,170 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:48:10,171 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:09" (1/1) ... [2023-11-12 00:48:10,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:10,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9c4bda-db60-48fb-ac71-3368f190ffa8/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:48:10,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9c4bda-db60-48fb-ac71-3368f190ffa8/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:48:10,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9c4bda-db60-48fb-ac71-3368f190ffa8/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:48:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-12 00:48:10,274 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-12 00:48:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-12 00:48:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure unix_gc [2023-11-12 00:48:10,275 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_gc [2023-11-12 00:48:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure unix_sysctl_unregister [2023-11-12 00:48:10,276 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_sysctl_unregister [2023-11-12 00:48:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-11-12 00:48:10,276 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-11-12 00:48:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2023-11-12 00:48:10,276 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2023-11-12 00:48:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-12 00:48:10,277 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-12 00:48:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure sock_sndtimeo [2023-11-12 00:48:10,358 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_sndtimeo [2023-11-12 00:48:10,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-12 00:48:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-12 00:48:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:48:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:48:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_addr [2023-11-12 00:48:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_addr [2023-11-12 00:48:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_lock [2023-11-12 00:48:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_lock [2023-11-12 00:48:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure unix_set_peek_off [2023-11-12 00:48:10,360 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_set_peek_off [2023-11-12 00:48:10,360 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-11-12 00:48:10,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-11-12 00:48:10,360 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_disconnected [2023-11-12 00:48:10,360 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_disconnected [2023-11-12 00:48:10,360 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2023-11-12 00:48:10,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2023-11-12 00:48:10,361 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy [2023-11-12 00:48:10,361 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy [2023-11-12 00:48:10,361 INFO L130 BoogieDeclarations]: Found specification of procedure put_cmsg [2023-11-12 00:48:10,361 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cmsg [2023-11-12 00:48:10,361 INFO L130 BoogieDeclarations]: Found specification of procedure unix_create1 [2023-11-12 00:48:10,361 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_create1 [2023-11-12 00:48:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_poll [2023-11-12 00:48:10,362 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_poll [2023-11-12 00:48:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 00:48:10,362 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 00:48:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2023-11-12 00:48:10,362 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2023-11-12 00:48:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure unix_recvq_full [2023-11-12 00:48:10,363 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_recvq_full [2023-11-12 00:48:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 00:48:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2023-11-12 00:48:10,363 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2023-11-12 00:48:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure unix_shutdown [2023-11-12 00:48:10,363 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_shutdown [2023-11-12 00:48:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 00:48:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure scan_children [2023-11-12 00:48:10,364 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_children [2023-11-12 00:48:10,364 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-11-12 00:48:10,364 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-11-12 00:48:10,364 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_fwd [2023-11-12 00:48:10,364 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_fwd [2023-11-12 00:48:10,364 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-12 00:48:10,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:48:10,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:48:10,365 INFO L130 BoogieDeclarations]: Found specification of procedure unix_find_other [2023-11-12 00:48:10,365 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_find_other [2023-11-12 00:48:10,365 INFO L130 BoogieDeclarations]: Found specification of procedure unix_scm_to_skb [2023-11-12 00:48:10,365 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_scm_to_skb [2023-11-12 00:48:10,365 INFO L130 BoogieDeclarations]: Found specification of procedure scm_send [2023-11-12 00:48:10,365 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_send [2023-11-12 00:48:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure sk_set_socket [2023-11-12 00:48:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_set_socket [2023-11-12 00:48:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure unix_autobind [2023-11-12 00:48:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_autobind [2023-11-12 00:48:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-12 00:48:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-12 00:48:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_sock [2023-11-12 00:48:10,367 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_sock [2023-11-12 00:48:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2023-11-12 00:48:10,367 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2023-11-12 00:48:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:48:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure unix_mkname [2023-11-12 00:48:10,367 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_mkname [2023-11-12 00:48:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-12 00:48:10,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-12 00:48:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:48:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:48:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure sock_intr_errno [2023-11-12 00:48:10,368 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_intr_errno [2023-11-12 00:48:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:48:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_inc [2023-11-12 00:48:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_inc [2023-11-12 00:48:10,369 INFO L130 BoogieDeclarations]: Found specification of procedure unix_may_send [2023-11-12 00:48:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_may_send [2023-11-12 00:48:10,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:48:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:48:10,369 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2023-11-12 00:48:10,370 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2023-11-12 00:48:10,370 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2023-11-12 00:48:10,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2023-11-12 00:48:10,370 INFO L130 BoogieDeclarations]: Found specification of procedure unix_listen [2023-11-12 00:48:10,370 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_listen [2023-11-12 00:48:10,370 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2023-11-12 00:48:10,370 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2023-11-12 00:48:10,370 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2023-11-12 00:48:10,371 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2023-11-12 00:48:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-12 00:48:10,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-12 00:48:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure seq_file_net [2023-11-12 00:48:10,371 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_file_net [2023-11-12 00:48:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure kiocb_to_siocb [2023-11-12 00:48:10,371 INFO L138 BoogieDeclarations]: Found implementation of procedure kiocb_to_siocb [2023-11-12 00:48:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure init_peercred [2023-11-12 00:48:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure init_peercred [2023-11-12 00:48:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-12 00:48:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-12 00:48:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2023-11-12 00:48:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2023-11-12 00:48:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_sendmsg [2023-11-12 00:48:10,373 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_sendmsg [2023-11-12 00:48:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure unix_stream_connect [2023-11-12 00:48:10,373 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_stream_connect [2023-11-12 00:48:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2023-11-12 00:48:10,373 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2023-11-12 00:48:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_dec [2023-11-12 00:48:10,378 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_dec [2023-11-12 00:48:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure unix_skb_len [2023-11-12 00:48:10,378 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_skb_len [2023-11-12 00:48:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure sock_flag [2023-11-12 00:48:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_flag [2023-11-12 00:48:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_unlock [2023-11-12 00:48:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_unlock [2023-11-12 00:48:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:48:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-12 00:48:10,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-12 00:48:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:48:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:48:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-12 00:48:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:48:10,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:48:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure unix_net_exit [2023-11-12 00:48:10,381 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_net_exit [2023-11-12 00:48:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure unix_detach_fds [2023-11-12 00:48:10,381 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_detach_fds [2023-11-12 00:48:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure touch_atime [2023-11-12 00:48:10,382 INFO L138 BoogieDeclarations]: Found implementation of procedure touch_atime [2023-11-12 00:48:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure unix_seq_stop [2023-11-12 00:48:10,382 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_seq_stop [2023-11-12 00:48:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-12 00:48:10,382 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-12 00:48:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-11-12 00:48:10,383 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-11-12 00:48:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_iovec [2023-11-12 00:48:10,383 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_iovec [2023-11-12 00:48:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:48:10,384 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:48:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-12 00:48:10,384 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-12 00:48:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure unix_accept [2023-11-12 00:48:10,384 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_accept [2023-11-12 00:48:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_recvmsg [2023-11-12 00:48:10,385 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_recvmsg [2023-11-12 00:48:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-12 00:48:10,385 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-12 00:48:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-11-12 00:48:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-11-12 00:48:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure unix_wait_for_peer [2023-11-12 00:48:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_wait_for_peer [2023-11-12 00:48:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure unix_hash_fold [2023-11-12 00:48:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_hash_fold [2023-11-12 00:48:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure scan_inflight [2023-11-12 00:48:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_inflight [2023-11-12 00:48:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-12 00:48:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-12 00:48:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:48:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:48:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 00:48:10,388 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 00:48:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2023-11-12 00:48:10,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2023-11-12 00:48:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2023-11-12 00:48:10,389 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2023-11-12 00:48:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2023-11-12 00:48:10,389 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2023-11-12 00:48:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:48:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:48:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:48:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:48:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2023-11-12 00:48:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2023-11-12 00:48:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-12 00:48:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-12 00:48:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure unix_peer_get [2023-11-12 00:48:10,391 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_peer_get [2023-11-12 00:48:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure unix_bind [2023-11-12 00:48:10,391 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_bind [2023-11-12 00:48:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure sock_hold [2023-11-12 00:48:10,392 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_hold [2023-11-12 00:48:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure unix_copy_addr [2023-11-12 00:48:10,393 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_copy_addr [2023-11-12 00:48:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-12 00:48:10,393 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-12 00:48:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-11-12 00:48:10,393 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-11-12 00:48:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 00:48:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 00:48:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 00:48:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 00:48:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure sock_poll_wait [2023-11-12 00:48:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_poll_wait [2023-11-12 00:48:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_find_socket_byname [2023-11-12 00:48:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_find_socket_byname [2023-11-12 00:48:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure sock_net [2023-11-12 00:48:10,395 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_net [2023-11-12 00:48:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-12 00:48:10,395 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-12 00:48:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:48:10,395 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:48:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure scm_recv [2023-11-12 00:48:10,395 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_recv [2023-11-12 00:48:10,396 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release [2023-11-12 00:48:10,396 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release [2023-11-12 00:48:10,396 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:48:10,396 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:48:10,396 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2023-11-12 00:48:10,396 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2023-11-12 00:48:10,396 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_getsockopt [2023-11-12 00:48:10,397 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_getsockopt [2023-11-12 00:48:10,397 INFO L130 BoogieDeclarations]: Found specification of procedure sock_alloc_send_pskb [2023-11-12 00:48:10,402 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_alloc_send_pskb [2023-11-12 00:48:10,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:48:10,402 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset [2023-11-12 00:48:10,402 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset [2023-11-12 00:48:10,402 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-12 00:48:10,403 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-12 00:48:10,403 INFO L130 BoogieDeclarations]: Found specification of procedure unix_get_socket [2023-11-12 00:48:10,403 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_get_socket [2023-11-12 00:48:10,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:48:10,403 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unhashed [2023-11-12 00:48:10,404 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unhashed [2023-11-12 00:48:10,404 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2023-11-12 00:48:10,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2023-11-12 00:48:10,404 INFO L130 BoogieDeclarations]: Found specification of procedure get_pid [2023-11-12 00:48:10,404 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pid [2023-11-12 00:48:10,404 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2023-11-12 00:48:10,405 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2023-11-12 00:48:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure scm_set_cred [2023-11-12 00:48:10,405 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_set_cred [2023-11-12 00:48:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2023-11-12 00:48:10,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2023-11-12 00:48:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-12 00:48:10,406 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-12 00:48:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2023-11-12 00:48:10,406 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2023-11-12 00:48:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure sk_wake_async [2023-11-12 00:48:10,407 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_wake_async [2023-11-12 00:48:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:48:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-12 00:48:10,407 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-12 00:48:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_add_creds [2023-11-12 00:48:10,407 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_add_creds [2023-11-12 00:48:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:48:10,408 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:48:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-11-12 00:48:10,408 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-11-12 00:48:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure skb_free_datagram [2023-11-12 00:48:10,409 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_free_datagram [2023-11-12 00:48:10,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-12 00:48:10,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-12 00:48:10,409 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_from_iovec [2023-11-12 00:48:10,409 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_from_iovec [2023-11-12 00:48:10,410 INFO L130 BoogieDeclarations]: Found specification of procedure sock_prot_inuse_add [2023-11-12 00:48:10,410 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_prot_inuse_add [2023-11-12 00:48:10,410 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-12 00:48:10,410 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-12 00:48:10,410 INFO L130 BoogieDeclarations]: Found specification of procedure sk_next [2023-11-12 00:48:10,410 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_next [2023-11-12 00:48:10,411 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_insert_socket [2023-11-12 00:48:10,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_insert_socket [2023-11-12 00:48:10,411 INFO L130 BoogieDeclarations]: Found specification of procedure sock_error [2023-11-12 00:48:10,411 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_error [2023-11-12 00:48:10,411 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_remove_socket [2023-11-12 00:48:10,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_remove_socket [2023-11-12 00:48:10,412 INFO L130 BoogieDeclarations]: Found specification of procedure csum_partial [2023-11-12 00:48:10,412 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_partial [2023-11-12 00:48:10,412 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-12 00:48:10,413 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-12 00:48:10,413 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2023-11-12 00:48:10,413 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2023-11-12 00:48:10,414 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:48:10,414 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:48:10,414 INFO L130 BoogieDeclarations]: Found specification of procedure scm_fp_dup [2023-11-12 00:48:10,414 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_fp_dup [2023-11-12 00:48:10,414 INFO L130 BoogieDeclarations]: Found specification of procedure security_unix_may_send [2023-11-12 00:48:10,415 INFO L138 BoogieDeclarations]: Found implementation of procedure security_unix_may_send [2023-11-12 00:48:10,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:48:10,415 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_mmap [2023-11-12 00:48:10,415 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_mmap [2023-11-12 00:48:10,415 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy_cred [2023-11-12 00:48:10,416 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy_cred [2023-11-12 00:48:10,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:48:10,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:48:10,416 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2023-11-12 00:48:10,416 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2023-11-12 00:48:10,417 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up_sync_key [2023-11-12 00:48:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up_sync_key [2023-11-12 00:48:10,417 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2023-11-12 00:48:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2023-11-12 00:48:10,417 INFO L130 BoogieDeclarations]: Found specification of procedure task_tgid [2023-11-12 00:48:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure task_tgid [2023-11-12 00:48:10,418 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-12 00:48:10,418 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-12 00:48:10,418 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-11-12 00:48:10,418 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-11-12 00:48:10,418 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_unix_gc [2023-11-12 00:48:10,419 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_unix_gc [2023-11-12 00:48:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2023-11-12 00:48:10,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2023-11-12 00:48:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure unix_next_socket [2023-11-12 00:48:10,419 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_next_socket [2023-11-12 00:48:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_setsockopt [2023-11-12 00:48:10,420 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_setsockopt [2023-11-12 00:48:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_bwd [2023-11-12 00:48:10,420 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_bwd [2023-11-12 00:48:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-12 00:48:10,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-12 00:48:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure unix_writable [2023-11-12 00:48:10,423 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_writable [2023-11-12 00:48:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2023-11-12 00:48:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2023-11-12 00:48:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure unix_socketpair [2023-11-12 00:48:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_socketpair [2023-11-12 00:48:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_sendpage [2023-11-12 00:48:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_sendpage [2023-11-12 00:48:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-12 00:48:10,433 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-12 00:48:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure unix_getname [2023-11-12 00:48:10,433 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_getname [2023-11-12 00:48:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure unix_ioctl [2023-11-12 00:48:10,434 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_ioctl [2023-11-12 00:48:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:48:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_enable [2023-11-12 00:48:10,434 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_enable [2023-11-12 00:48:11,675 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:48:11,683 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:48:11,991 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:48:20,921 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:48:24,313 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:48:24,314 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:48:24,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:24 BoogieIcfgContainer [2023-11-12 00:48:24,321 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:48:24,325 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:48:24,326 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:48:24,329 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:48:24,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:48:03" (1/3) ... [2023-11-12 00:48:24,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6756dca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:24, skipping insertion in model container [2023-11-12 00:48:24,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:09" (2/3) ... [2023-11-12 00:48:24,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6756dca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:24, skipping insertion in model container [2023-11-12 00:48:24,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:24" (3/3) ... [2023-11-12 00:48:24,333 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 [2023-11-12 00:48:24,352 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:48:24,353 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:48:24,470 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:48:24,480 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;@5f82483e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:48:24,480 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:48:24,496 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) [2023-11-12 00:48:24,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-11-12 00:48:24,554 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:24,555 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] [2023-11-12 00:48:24,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:24,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:24,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1801628684, now seen corresponding path program 1 times [2023-11-12 00:48:24,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:24,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438023295] [2023-11-12 00:48:24,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:24,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:25,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1514 trivial. 0 not checked. [2023-11-12 00:48:25,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:25,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438023295] [2023-11-12 00:48:25,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438023295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:25,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:25,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:48:25,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145505082] [2023-11-12 00:48:25,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:25,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:48:25,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:25,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:48:25,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:25,756 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) [2023-11-12 00:48:28,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:28,440 INFO L93 Difference]: Finished difference Result 6131 states and 8978 transitions. [2023-11-12 00:48:28,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:48:28,443 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 [2023-11-12 00:48:28,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:28,510 INFO L225 Difference]: With dead ends: 6131 [2023-11-12 00:48:28,511 INFO L226 Difference]: Without dead ends: 4023 [2023-11-12 00:48:28,538 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 [2023-11-12 00:48:28,543 INFO L413 NwaCegarLoop]: 2798 mSDtfsCounter, 2881 mSDsluCounter, 2669 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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, 2.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:28,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2881 Valid, 5467 Invalid, 681 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-12 00:48:28,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4023 states. [2023-11-12 00:48:29,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4023 to 4019. [2023-11-12 00:48:29,065 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) [2023-11-12 00:48:29,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 5844 transitions. [2023-11-12 00:48:29,123 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 5844 transitions. Word has length 206 [2023-11-12 00:48:29,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:29,128 INFO L495 AbstractCegarLoop]: Abstraction has 4019 states and 5844 transitions. [2023-11-12 00:48:29,128 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) [2023-11-12 00:48:29,129 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 5844 transitions. [2023-11-12 00:48:29,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-12 00:48:29,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:29,144 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] [2023-11-12 00:48:29,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:48:29,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:29,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:29,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1887936962, now seen corresponding path program 1 times [2023-11-12 00:48:29,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:29,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423398379] [2023-11-12 00:48:29,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:29,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:29,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1514 trivial. 0 not checked. [2023-11-12 00:48:29,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:29,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423398379] [2023-11-12 00:48:29,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423398379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:29,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:29,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:48:29,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672581661] [2023-11-12 00:48:29,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:29,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:48:29,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:29,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:48:29,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:29,842 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) [2023-11-12 00:48:32,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:32,847 INFO L93 Difference]: Finished difference Result 11376 states and 16439 transitions. [2023-11-12 00:48:32,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:48:32,849 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 [2023-11-12 00:48:32,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:32,938 INFO L225 Difference]: With dead ends: 11376 [2023-11-12 00:48:32,939 INFO L226 Difference]: Without dead ends: 7414 [2023-11-12 00:48:32,968 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 [2023-11-12 00:48:32,970 INFO L413 NwaCegarLoop]: 2968 mSDtfsCounter, 2601 mSDsluCounter, 2631 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:32,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2601 Valid, 5599 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-12 00:48:32,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7414 states. [2023-11-12 00:48:33,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7414 to 7409. [2023-11-12 00:48:33,531 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) [2023-11-12 00:48:33,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7409 states to 7409 states and 10674 transitions. [2023-11-12 00:48:33,599 INFO L78 Accepts]: Start accepts. Automaton has 7409 states and 10674 transitions. Word has length 207 [2023-11-12 00:48:33,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:33,600 INFO L495 AbstractCegarLoop]: Abstraction has 7409 states and 10674 transitions. [2023-11-12 00:48:33,610 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) [2023-11-12 00:48:33,618 INFO L276 IsEmpty]: Start isEmpty. Operand 7409 states and 10674 transitions. [2023-11-12 00:48:33,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-12 00:48:33,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:33,625 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] [2023-11-12 00:48:33,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:48:33,626 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:33,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:33,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1748014853, now seen corresponding path program 1 times [2023-11-12 00:48:33,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:33,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928958774] [2023-11-12 00:48:33,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:33,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:34,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1514 trivial. 0 not checked. [2023-11-12 00:48:34,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:34,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928958774] [2023-11-12 00:48:34,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928958774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:34,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:34,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:48:34,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444164833] [2023-11-12 00:48:34,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:34,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:48:34,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:34,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:48:34,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:34,238 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) [2023-11-12 00:48:35,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:48:38,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:38,159 INFO L93 Difference]: Finished difference Result 20035 states and 28760 transitions. [2023-11-12 00:48:38,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:48:38,161 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 [2023-11-12 00:48:38,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:38,301 INFO L225 Difference]: With dead ends: 20035 [2023-11-12 00:48:38,302 INFO L226 Difference]: Without dead ends: 12683 [2023-11-12 00:48:38,356 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 [2023-11-12 00:48:38,361 INFO L413 NwaCegarLoop]: 4590 mSDtfsCounter, 2869 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s 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, 3.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:38,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2869 Valid, 7218 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-12 00:48:38,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12683 states. [2023-11-12 00:48:39,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12683 to 12680. [2023-11-12 00:48:39,295 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) [2023-11-12 00:48:39,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12680 states to 12680 states and 18165 transitions. [2023-11-12 00:48:39,396 INFO L78 Accepts]: Start accepts. Automaton has 12680 states and 18165 transitions. Word has length 213 [2023-11-12 00:48:39,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:39,397 INFO L495 AbstractCegarLoop]: Abstraction has 12680 states and 18165 transitions. [2023-11-12 00:48:39,398 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) [2023-11-12 00:48:39,398 INFO L276 IsEmpty]: Start isEmpty. Operand 12680 states and 18165 transitions. [2023-11-12 00:48:39,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-12 00:48:39,421 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:39,422 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] [2023-11-12 00:48:39,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:48:39,422 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:39,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:39,423 INFO L85 PathProgramCache]: Analyzing trace with hash 2144312269, now seen corresponding path program 1 times [2023-11-12 00:48:39,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:39,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296904056] [2023-11-12 00:48:39,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:39,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:41,537 INFO L134 CoverageAnalysis]: Checked inductivity of 4906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4906 trivial. 0 not checked. [2023-11-12 00:48:41,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:41,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296904056] [2023-11-12 00:48:41,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296904056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:41,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:41,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:48:41,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229098311] [2023-11-12 00:48:41,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:41,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:48:41,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:41,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:48:41,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:48:41,541 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)