./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_60ca5677-c01a-4c86-ae27-8716b1044c44/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ca5677-c01a-4c86-ae27-8716b1044c44/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ca5677-c01a-4c86-ae27-8716b1044c44/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ca5677-c01a-4c86-ae27-8716b1044c44/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ca5677-c01a-4c86-ae27-8716b1044c44/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ca5677-c01a-4c86-ae27-8716b1044c44/bin/utaipan-verify-YMUCfTKeje --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 9f68debcc61ee35ddbda4ad46db69b4a0f225d0941363a5b1d47ac1b39df3d4f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:30:20,392 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:30:20,518 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ca5677-c01a-4c86-ae27-8716b1044c44/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 05:30:20,527 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:30:20,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:30:20,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:30:20,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:30:20,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:30:20,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:30:20,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:30:20,578 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:30:20,579 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:30:20,580 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:30:20,580 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:30:20,581 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:30:20,581 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:30:20,582 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:30:20,582 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:30:20,583 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:30:20,587 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:30:20,587 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:30:20,588 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:30:20,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:30:20,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:30:20,592 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:30:20,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:30:20,592 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:30:20,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:30:20,594 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:30:20,594 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:30:20,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:30:20,597 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:30:20,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:30:20,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:30:20,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:30:20,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:30:20,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:30:20,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:30:20,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:30:20,600 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:30:20,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:30:20,601 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:30:20,601 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:30:20,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:30:20,603 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_60ca5677-c01a-4c86-ae27-8716b1044c44/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ca5677-c01a-4c86-ae27-8716b1044c44/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f68debcc61ee35ddbda4ad46db69b4a0f225d0941363a5b1d47ac1b39df3d4f [2024-11-09 05:30:20,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:30:20,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:30:20,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:30:20,995 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:30:20,996 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:30:20,997 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ca5677-c01a-4c86-ae27-8716b1044c44/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i Unable to find full path for "g++" [2024-11-09 05:30:23,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:30:24,617 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:30:24,618 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ca5677-c01a-4c86-ae27-8716b1044c44/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2024-11-09 05:30:24,722 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ca5677-c01a-4c86-ae27-8716b1044c44/bin/utaipan-verify-YMUCfTKeje/data/880c24644/9cebbd9d7e9c46b79f1da3f3317768c1/FLAGb8b551c8b [2024-11-09 05:30:25,197 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ca5677-c01a-4c86-ae27-8716b1044c44/bin/utaipan-verify-YMUCfTKeje/data/880c24644/9cebbd9d7e9c46b79f1da3f3317768c1 [2024-11-09 05:30:25,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:30:25,202 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:30:25,204 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:30:25,204 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:30:25,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:30:25,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:30:25" (1/1) ... [2024-11-09 05:30:25,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d8c9dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:30:25, skipping insertion in model container [2024-11-09 05:30:25,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:30:25" (1/1) ... [2024-11-09 05:30:25,514 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:30:30,614 WARN L250 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_60ca5677-c01a-4c86-ae27-8716b1044c44/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2024-11-09 05:30:30,618 WARN L250 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_60ca5677-c01a-4c86-ae27-8716b1044c44/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2024-11-09 05:30:30,622 WARN L250 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_60ca5677-c01a-4c86-ae27-8716b1044c44/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2024-11-09 05:30:30,623 WARN L250 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_60ca5677-c01a-4c86-ae27-8716b1044c44/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2024-11-09 05:30:30,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:30:30,727 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:30:30,894 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"); [5779] [2024-11-09 05:30:30,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5786] [2024-11-09 05:30:30,898 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)); [5793] [2024-11-09 05:30:30,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5800] [2024-11-09 05:30:30,900 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)); [5815-5816] [2024-11-09 05:30:30,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5857] [2024-11-09 05:30:30,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5860] [2024-11-09 05:30:30,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5863] [2024-11-09 05:30:30,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5866] [2024-11-09 05:30:30,903 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)); [5895] [2024-11-09 05:30:30,904 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5902] [2024-11-09 05:30:30,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [5961] [2024-11-09 05:30:30,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [5964] [2024-11-09 05:30:30,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (val)); [5966] [2024-11-09 05:30:30,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [5971] [2024-11-09 05:30:30,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [5974] [2024-11-09 05:30:30,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [5976] [2024-11-09 05:30:30,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [5981] [2024-11-09 05:30:30,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [5984] [2024-11-09 05:30:30,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [5986] [2024-11-09 05:30:30,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [5991] [2024-11-09 05:30:30,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [5994] [2024-11-09 05:30:30,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (val)); [5996] [2024-11-09 05:30:30,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [6034] [2024-11-09 05:30:30,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [6037] [2024-11-09 05:30:30,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (- val)); [6039] [2024-11-09 05:30:30,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [6044] [2024-11-09 05:30:30,912 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [6047] [2024-11-09 05:30:30,912 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [6049] [2024-11-09 05:30:30,912 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [6054] [2024-11-09 05:30:30,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [6057] [2024-11-09 05:30:30,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [6059] [2024-11-09 05:30:30,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [6064] [2024-11-09 05:30:30,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [6067] [2024-11-09 05:30:30,914 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (- val)); [6069] [2024-11-09 05:30:30,918 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6138] [2024-11-09 05:30:30,918 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6147] [2024-11-09 05:30:30,926 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6407] [2024-11-09 05:30:30,953 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 *)"include/linux/skbuff.h"), "i" (1891), "i" (12UL)); [6717-6718] [2024-11-09 05:30:30,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (cpu_number)); [6973] [2024-11-09 05:30:30,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6976] [2024-11-09 05:30:30,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6979] [2024-11-09 05:30:30,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6982] [2024-11-09 05:30:30,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____0): "m" (cpu_number)); [7013] [2024-11-09 05:30:30,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [7016] [2024-11-09 05:30:30,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [7019] [2024-11-09 05:30:30,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [7022] [2024-11-09 05:30:30,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____1): "m" (cpu_number)); [7053] [2024-11-09 05:30:30,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [7056] [2024-11-09 05:30:30,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [7059] [2024-11-09 05:30:30,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [7062] [2024-11-09 05:30:30,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____2): "m" (cpu_number)); [7093] [2024-11-09 05:30:30,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [7096] [2024-11-09 05:30:30,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [7099] [2024-11-09 05:30:30,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [7102] [2024-11-09 05:30:30,978 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7394] [2024-11-09 05:30:30,979 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7397] [2024-11-09 05:30:30,979 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7400] [2024-11-09 05:30:30,979 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7403] [2024-11-09 05:30:30,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7434] [2024-11-09 05:30:30,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7437] [2024-11-09 05:30:30,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7440] [2024-11-09 05:30:30,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7443] [2024-11-09 05:30:30,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7474] [2024-11-09 05:30:30,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7477] [2024-11-09 05:30:30,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7480] [2024-11-09 05:30:30,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7483] [2024-11-09 05:30:30,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7514] [2024-11-09 05:30:30,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7517] [2024-11-09 05:30:30,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7520] [2024-11-09 05:30:30,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7523] [2024-11-09 05:30:30,985 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7592] [2024-11-09 05:30:30,985 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7595] [2024-11-09 05:30:30,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7598] [2024-11-09 05:30:30,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7601] [2024-11-09 05:30:30,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7632] [2024-11-09 05:30:30,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7635] [2024-11-09 05:30:30,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7638] [2024-11-09 05:30:30,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7641] [2024-11-09 05:30:30,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7672] [2024-11-09 05:30:30,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7675] [2024-11-09 05:30:30,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7678] [2024-11-09 05:30:30,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7681] [2024-11-09 05:30:30,991 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7712] [2024-11-09 05:30:30,991 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7715] [2024-11-09 05:30:30,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7718] [2024-11-09 05:30:30,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7721] [2024-11-09 05:30:31,063 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 *)"drivers/net/tun.c"), "i" (446), "i" (12UL)); [8628-8629] [2024-11-09 05:30:31,063 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8635] [2024-11-09 05:30:31,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8657] [2024-11-09 05:30:31,077 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 *)"drivers/net/tun.c"), "i" (480), "i" (12UL)); [8699-8700] [2024-11-09 05:30:31,080 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 *)"drivers/net/tun.c"), "i" (500), "i" (12UL)); [8778-8779] [2024-11-09 05:30:31,080 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8786] [2024-11-09 05:30:31,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8802] [2024-11-09 05:30:31,142 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 *)"drivers/net/tun.c"), "i" (509), "i" (12UL)); [8817-8818] [2024-11-09 05:30:31,145 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 *)"drivers/net/tun.c"), "i" (523), "i" (12UL)); [8880-8881] [2024-11-09 05:30:31,162 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8954] [2024-11-09 05:30:31,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8956] [2024-11-09 05:30:31,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9106] [2024-11-09 05:30:31,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9154] [2024-11-09 05:30:31,209 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 *)"drivers/net/tun.c"), "i" (770), "i" (12UL)); [9320-9321] [2024-11-09 05:30:31,294 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 *)"drivers/net/tun.c"), "i" (1408), "i" (12UL)); [10377-10378] [2024-11-09 05:30:31,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((unsigned int *)argp): "ebx"); [11274] [2024-11-09 05:30:31,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((unsigned int *)argp): "ebx"); [11277] [2024-11-09 05:30:31,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((unsigned int *)argp): "ebx"); [11280] [2024-11-09 05:30:31,409 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((unsigned int *)argp): "ebx"); [11283] [2024-11-09 05:30:31,409 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((unsigned int *)argp): "ebx"); [11286] [2024-11-09 05:30:31,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [11769] [2024-11-09 05:30:31,437 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [11775] [2024-11-09 05:30:31,565 WARN L250 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_60ca5677-c01a-4c86-ae27-8716b1044c44/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2024-11-09 05:30:31,566 WARN L250 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_60ca5677-c01a-4c86-ae27-8716b1044c44/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2024-11-09 05:30:31,567 WARN L250 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_60ca5677-c01a-4c86-ae27-8716b1044c44/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2024-11-09 05:30:31,569 WARN L250 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_60ca5677-c01a-4c86-ae27-8716b1044c44/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2024-11-09 05:30:31,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:30:31,956 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:30:31,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:30:31 WrapperNode [2024-11-09 05:30:31,957 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:30:31,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:30:31,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:30:31,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:30:31,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:30:31" (1/1) ... [2024-11-09 05:30:32,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:30:31" (1/1) ... [2024-11-09 05:30:32,426 INFO L138 Inliner]: procedures = 614, calls = 2582, calls flagged for inlining = 324, calls inlined = 257, statements flattened = 8070 [2024-11-09 05:30:32,427 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:30:32,428 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:30:32,428 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:30:32,428 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:30:32,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:30:31" (1/1) ... [2024-11-09 05:30:32,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:30:31" (1/1) ... [2024-11-09 05:30:32,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:30:31" (1/1) ... [2024-11-09 05:30:32,478 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:30:31" (1/1) ... [2024-11-09 05:30:32,624 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:30:31" (1/1) ... [2024-11-09 05:30:32,669 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:30:31" (1/1) ... [2024-11-09 05:30:32,704 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:30:31" (1/1) ... [2024-11-09 05:30:32,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:30:31" (1/1) ... [2024-11-09 05:30:32,788 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:30:32,789 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:30:32,790 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:30:32,790 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:30:32,791 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:30:31" (1/1) ... [2024-11-09 05:30:32,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:30:32,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ca5677-c01a-4c86-ae27-8716b1044c44/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:30:32,831 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ca5677-c01a-4c86-ae27-8716b1044c44/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:30:32,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ca5677-c01a-4c86-ae27-8716b1044c44/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:30:32,876 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get [2024-11-09 05:30:32,878 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get [2024-11-09 05:30:32,878 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2024-11-09 05:30:32,878 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2024-11-09 05:30:32,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 05:30:32,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 05:30:32,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-09 05:30:32,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-09 05:30:32,879 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get_hash [2024-11-09 05:30:32,879 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get_hash [2024-11-09 05:30:32,879 INFO L130 BoogieDeclarations]: Found specification of procedure tun_attach [2024-11-09 05:30:32,880 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_attach [2024-11-09 05:30:32,880 INFO L130 BoogieDeclarations]: Found specification of procedure ns_capable [2024-11-09 05:30:32,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_capable [2024-11-09 05:30:32,880 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2024-11-09 05:30:32,880 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2024-11-09 05:30:32,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-09 05:30:32,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-09 05:30:32,881 INFO L130 BoogieDeclarations]: Found specification of procedure gid_valid [2024-11-09 05:30:32,881 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_valid [2024-11-09 05:30:32,882 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2024-11-09 05:30:32,882 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2024-11-09 05:30:32,882 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2024-11-09 05:30:32,882 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2024-11-09 05:30:32,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-09 05:30:32,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-09 05:30:32,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:30:32,883 INFO L130 BoogieDeclarations]: Found specification of procedure sock_writeable [2024-11-09 05:30:32,883 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_writeable [2024-11-09 05:30:32,884 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-09 05:30:32,884 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-09 05:30:32,884 INFO L130 BoogieDeclarations]: Found specification of procedure iov_length [2024-11-09 05:30:32,884 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_length [2024-11-09 05:30:32,885 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-09 05:30:32,885 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-09 05:30:32,885 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2024-11-09 05:30:32,885 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2024-11-09 05:30:32,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 05:30:32,885 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-09 05:30:32,983 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-09 05:30:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get_iff [2024-11-09 05:30:32,984 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get_iff [2024-11-09 05:30:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 05:30:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_76 [2024-11-09 05:30:32,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_76 [2024-11-09 05:30:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-09 05:30:32,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-09 05:30:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_detach [2024-11-09 05:30:32,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_detach [2024-11-09 05:30:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:30:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 05:30:32,985 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 05:30:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tun_cleanup_15_2 [2024-11-09 05:30:32,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tun_cleanup_15_2 [2024-11-09 05:30:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure tun_detach_all [2024-11-09 05:30:32,985 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_detach_all [2024-11-09 05:30:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2024-11-09 05:30:32,986 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2024-11-09 05:30:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2024-11-09 05:30:32,986 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2024-11-09 05:30:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-09 05:30:32,986 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-09 05:30:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2024-11-09 05:30:32,986 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2024-11-09 05:30:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-09 05:30:32,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-09 05:30:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:30:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-09 05:30:32,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-09 05:30:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2024-11-09 05:30:32,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2024-11-09 05:30:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2024-11-09 05:30:32,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2024-11-09 05:30:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:30:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 05:30:32,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 05:30:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 05:30:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2024-11-09 05:30:32,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __bad_percpu_size [2024-11-09 05:30:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure read_pnet [2024-11-09 05:30:32,990 INFO L138 BoogieDeclarations]: Found implementation of procedure read_pnet [2024-11-09 05:30:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-09 05:30:32,990 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-09 05:30:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2024-11-09 05:30:32,990 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2024-11-09 05:30:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure tun_setup [2024-11-09 05:30:32,990 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_setup [2024-11-09 05:30:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_transport_header [2024-11-09 05:30:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_transport_header [2024-11-09 05:30:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-09 05:30:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-09 05:30:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-11-09 05:30:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-11-09 05:30:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_find [2024-11-09 05:30:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_find [2024-11-09 05:30:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_uninit [2024-11-09 05:30:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_uninit [2024-11-09 05:30:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-09 05:30:32,992 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-09 05:30:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_net [2024-11-09 05:30:32,992 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_net [2024-11-09 05:30:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:30:32,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:30:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toiovecend [2024-11-09 05:30:32,992 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend [2024-11-09 05:30:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2024-11-09 05:30:32,994 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2024-11-09 05:30:32,994 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flags [2024-11-09 05:30:32,994 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flags [2024-11-09 05:30:32,994 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2024-11-09 05:30:32,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2024-11-09 05:30:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 05:30:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure uid_valid [2024-11-09 05:30:32,995 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_valid [2024-11-09 05:30:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 05:30:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 05:30:32,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 05:30:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-09 05:30:32,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-09 05:30:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-09 05:30:32,996 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-09 05:30:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2024-11-09 05:30:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __bad_size_call_parameter [2024-11-09 05:30:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2024-11-09 05:30:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2024-11-09 05:30:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rtnl_is_held [2024-11-09 05:30:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rtnl_is_held [2024-11-09 05:30:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2024-11-09 05:30:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2024-11-09 05:30:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2024-11-09 05:30:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2024-11-09 05:30:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 05:30:32,998 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 05:30:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_get [2024-11-09 05:30:32,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_get [2024-11-09 05:30:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2024-11-09 05:30:32,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2024-11-09 05:30:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure sk_attach_filter [2024-11-09 05:30:32,998 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_attach_filter [2024-11-09 05:30:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:30:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-09 05:30:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-09 05:30:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2024-11-09 05:30:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2024-11-09 05:30:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure put_net [2024-11-09 05:30:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure put_net [2024-11-09 05:30:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:30:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_const_iovec [2024-11-09 05:30:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_const_iovec [2024-11-09 05:30:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 05:30:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-09 05:30:33,000 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-09 05:30:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 05:30:33,000 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 05:30:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get_user [2024-11-09 05:30:33,001 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get_user [2024-11-09 05:30:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2024-11-09 05:30:33,001 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2024-11-09 05:30:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_chr_ioctl [2024-11-09 05:30:33,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_chr_ioctl [2024-11-09 05:30:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-09 05:30:33,001 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-09 05:30:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_delete [2024-11-09 05:30:33,002 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_delete [2024-11-09 05:30:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure sock_rps_reset_flow_hash [2024-11-09 05:30:33,002 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_rps_reset_flow_hash [2024-11-09 05:30:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-09 05:30:33,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-09 05:30:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure tun_queue_purge [2024-11-09 05:30:33,002 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_queue_purge [2024-11-09 05:30:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure tun_hashfn [2024-11-09 05:30:33,003 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_hashfn [2024-11-09 05:30:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-09 05:30:33,003 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-09 05:30:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-09 05:30:33,003 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-09 05:30:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-09 05:30:33,003 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-09 05:30:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2024-11-09 05:30:33,003 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2024-11-09 05:30:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_75 [2024-11-09 05:30:33,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_75 [2024-11-09 05:30:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 05:30:33,004 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 05:30:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure tun_enable_queue [2024-11-09 05:30:33,004 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_enable_queue [2024-11-09 05:30:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:30:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure security_tun_dev_free_security [2024-11-09 05:30:33,005 INFO L138 BoogieDeclarations]: Found implementation of procedure security_tun_dev_free_security [2024-11-09 05:30:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure hold_net [2024-11-09 05:30:33,005 INFO L138 BoogieDeclarations]: Found implementation of procedure hold_net [2024-11-09 05:30:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure tun_set_real_num_queues [2024-11-09 05:30:33,005 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_set_real_num_queues [2024-11-09 05:30:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 05:30:33,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 05:30:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2024-11-09 05:30:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2024-11-09 05:30:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_link_unregister [2024-11-09 05:30:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_link_unregister [2024-11-09 05:30:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure tun_do_read [2024-11-09 05:30:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_do_read [2024-11-09 05:30:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-09 05:30:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-09 05:30:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2024-11-09 05:30:33,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2024-11-09 05:30:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-11-09 05:30:33,007 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-11-09 05:30:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2024-11-09 05:30:33,007 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2024-11-09 05:30:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2024-11-09 05:30:33,007 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2024-11-09 05:30:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2024-11-09 05:30:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2024-11-09 05:30:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2024-11-09 05:30:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2024-11-09 05:30:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-11-09 05:30:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-11-09 05:30:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2024-11-09 05:30:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2024-11-09 05:30:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure tun_detach_filter [2024-11-09 05:30:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_detach_filter [2024-11-09 05:30:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromiovecend [2024-11-09 05:30:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromiovecend [2024-11-09 05:30:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_up [2024-11-09 05:30:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_up [2024-11-09 05:30:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-09 05:30:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-09 05:30:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2024-11-09 05:30:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2024-11-09 05:30:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure tun_put [2024-11-09 05:30:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_put [2024-11-09 05:30:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:30:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-09 05:30:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-09 05:30:34,211 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:30:34,215 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:30:34,749 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 05:30:46,850 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-09 05:30:48,234 INFO L? ?]: Removed 3402 outVars from TransFormulas that were not future-live. [2024-11-09 05:30:48,234 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:30:52,160 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:30:52,160 INFO L316 CfgBuilder]: Removed 25 assume(true) statements. [2024-11-09 05:30:52,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:30:52 BoogieIcfgContainer [2024-11-09 05:30:52,160 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:30:52,163 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:30:52,163 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:30:52,166 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:30:52,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:30:25" (1/3) ... [2024-11-09 05:30:52,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a31e9c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:30:52, skipping insertion in model container [2024-11-09 05:30:52,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:30:31" (2/3) ... [2024-11-09 05:30:52,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a31e9c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:30:52, skipping insertion in model container [2024-11-09 05:30:52,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:30:52" (3/3) ... [2024-11-09 05:30:52,169 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2024-11-09 05:30:52,189 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:30:52,189 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-09 05:30:52,314 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:30:52,322 INFO L333 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, 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;@178fec8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:30:52,323 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-09 05:30:52,336 INFO L276 IsEmpty]: Start isEmpty. Operand has 1684 states, 1066 states have (on average 1.399624765478424) internal successors, (1492), 1105 states have internal predecessors, (1492), 507 states have call successors, (507), 109 states have call predecessors, (507), 108 states have return successors, (500), 491 states have call predecessors, (500), 500 states have call successors, (500) [2024-11-09 05:30:52,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-09 05:30:52,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:30:52,376 INFO L215 NwaCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:30:52,376 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:30:52,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:30:52,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1268064525, now seen corresponding path program 1 times [2024-11-09 05:30:52,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:30:52,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920963710] [2024-11-09 05:30:52,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:30:52,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:31:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:10,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2862 trivial. 0 not checked. [2024-11-09 05:31:10,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:31:10,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920963710] [2024-11-09 05:31:10,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920963710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:31:10,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:31:10,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:31:10,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866233475] [2024-11-09 05:31:10,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:10,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:31:10,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:31:10,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:31:10,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:31:10,498 INFO L87 Difference]: Start difference. First operand has 1684 states, 1066 states have (on average 1.399624765478424) internal successors, (1492), 1105 states have internal predecessors, (1492), 507 states have call successors, (507), 109 states have call predecessors, (507), 108 states have return successors, (500), 491 states have call predecessors, (500), 500 states have call successors, (500) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-09 05:31:12,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:31:14,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:31:20,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:31:25,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:31:27,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:31:28,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:28,483 INFO L93 Difference]: Finished difference Result 4754 states and 7174 transitions. [2024-11-09 05:31:28,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:31:28,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 291 [2024-11-09 05:31:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:28,543 INFO L225 Difference]: With dead ends: 4754 [2024-11-09 05:31:28,543 INFO L226 Difference]: Without dead ends: 3109 [2024-11-09 05:31:28,566 INFO L431 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 [2024-11-09 05:31:28,570 INFO L432 NwaCegarLoop]: 2103 mSDtfsCounter, 2210 mSDsluCounter, 1932 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2210 SdHoareTripleChecker+Valid, 4035 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:31:28,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2210 Valid, 4035 Invalid, 790 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 785 Invalid, 3 Unknown, 0 Unchecked, 17.6s Time] [2024-11-09 05:31:28,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2024-11-09 05:31:28,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 3079. [2024-11-09 05:31:28,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3079 states, 1960 states have (on average 1.3474489795918367) internal successors, (2641), 2005 states have internal predecessors, (2641), 909 states have call successors, (909), 209 states have call predecessors, (909), 207 states have return successors, (913), 897 states have call predecessors, (913), 905 states have call successors, (913) [2024-11-09 05:31:28,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3079 states to 3079 states and 4463 transitions. [2024-11-09 05:31:28,992 INFO L78 Accepts]: Start accepts. Automaton has 3079 states and 4463 transitions. Word has length 291 [2024-11-09 05:31:28,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:28,998 INFO L471 AbstractCegarLoop]: Abstraction has 3079 states and 4463 transitions. [2024-11-09 05:31:28,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-09 05:31:28,998 INFO L276 IsEmpty]: Start isEmpty. Operand 3079 states and 4463 transitions. [2024-11-09 05:31:29,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-09 05:31:29,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:29,016 INFO L215 NwaCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:29,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:31:29,017 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:31:29,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:29,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1643319288, now seen corresponding path program 1 times [2024-11-09 05:31:29,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:31:29,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010183295] [2024-11-09 05:31:29,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:29,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:31:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:43,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2862 trivial. 0 not checked. [2024-11-09 05:31:43,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:31:43,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010183295] [2024-11-09 05:31:43,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010183295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:31:43,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:31:43,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:31:43,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935052728] [2024-11-09 05:31:43,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:43,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:31:43,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:31:43,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:31:43,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:31:43,092 INFO L87 Difference]: Start difference. First operand 3079 states and 4463 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 05:31:45,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:31:47,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:31:56,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:31:58,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:32:01,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:01,370 INFO L93 Difference]: Finished difference Result 8999 states and 13030 transitions. [2024-11-09 05:32:01,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:32:01,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 293 [2024-11-09 05:32:01,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:01,427 INFO L225 Difference]: With dead ends: 8999 [2024-11-09 05:32:01,427 INFO L226 Difference]: Without dead ends: 5975 [2024-11-09 05:32:01,447 INFO L431 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 [2024-11-09 05:32:01,448 INFO L432 NwaCegarLoop]: 1937 mSDtfsCounter, 2139 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2139 SdHoareTripleChecker+Valid, 3812 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:01,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2139 Valid, 3812 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 786 Invalid, 2 Unknown, 0 Unchecked, 17.9s Time] [2024-11-09 05:32:01,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5975 states. [2024-11-09 05:32:01,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5975 to 5971. [2024-11-09 05:32:01,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5971 states, 3834 states have (on average 1.3487219613980177) internal successors, (5171), 3914 states have internal predecessors, (5171), 1723 states have call successors, (1723), 414 states have call predecessors, (1723), 411 states have return successors, (1735), 1706 states have call predecessors, (1735), 1719 states have call successors, (1735) [2024-11-09 05:32:01,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5971 states to 5971 states and 8629 transitions. [2024-11-09 05:32:01,836 INFO L78 Accepts]: Start accepts. Automaton has 5971 states and 8629 transitions. Word has length 293 [2024-11-09 05:32:01,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:01,838 INFO L471 AbstractCegarLoop]: Abstraction has 5971 states and 8629 transitions. [2024-11-09 05:32:01,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 05:32:01,839 INFO L276 IsEmpty]: Start isEmpty. Operand 5971 states and 8629 transitions. [2024-11-09 05:32:01,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-09 05:32:01,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:01,853 INFO L215 NwaCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 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] [2024-11-09 05:32:01,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:32:01,853 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:32:01,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:01,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1717677438, now seen corresponding path program 1 times [2024-11-09 05:32:01,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:32:01,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472911593] [2024-11-09 05:32:01,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:01,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:32:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:15,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2864 trivial. 0 not checked. [2024-11-09 05:32:15,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:32:15,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472911593] [2024-11-09 05:32:15,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472911593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:32:15,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:32:15,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:32:15,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042815810] [2024-11-09 05:32:15,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:32:15,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:32:15,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:32:15,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:32:15,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:32:15,192 INFO L87 Difference]: Start difference. First operand 5971 states and 8629 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2024-11-09 05:32:17,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:32:19,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:32:27,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:32:29,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:32:31,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:32:33,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:32:33,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:33,283 INFO L93 Difference]: Finished difference Result 11865 states and 17053 transitions. [2024-11-09 05:32:33,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:32:33,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 317 [2024-11-09 05:32:33,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:33,331 INFO L225 Difference]: With dead ends: 11865 [2024-11-09 05:32:33,332 INFO L226 Difference]: Without dead ends: 5949 [2024-11-09 05:32:33,360 INFO L431 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 [2024-11-09 05:32:33,361 INFO L432 NwaCegarLoop]: 1992 mSDtfsCounter, 1096 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 3872 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:33,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 3872 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 828 Invalid, 3 Unknown, 0 Unchecked, 17.8s Time] [2024-11-09 05:32:33,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5949 states. [2024-11-09 05:32:33,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5949 to 5919. [2024-11-09 05:32:33,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5919 states, 3858 states have (on average 1.3351477449455678) internal successors, (5151), 3933 states have internal predecessors, (5151), 1633 states have call successors, (1633), 429 states have call predecessors, (1633), 425 states have return successors, (1641), 1609 states have call predecessors, (1641), 1629 states have call successors, (1641) [2024-11-09 05:32:33,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5919 states to 5919 states and 8425 transitions. [2024-11-09 05:32:33,740 INFO L78 Accepts]: Start accepts. Automaton has 5919 states and 8425 transitions. Word has length 317 [2024-11-09 05:32:33,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:33,742 INFO L471 AbstractCegarLoop]: Abstraction has 5919 states and 8425 transitions. [2024-11-09 05:32:33,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2024-11-09 05:32:33,742 INFO L276 IsEmpty]: Start isEmpty. Operand 5919 states and 8425 transitions. [2024-11-09 05:32:33,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-09 05:32:33,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:33,753 INFO L215 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:32:33,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:32:33,753 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:32:33,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:33,754 INFO L85 PathProgramCache]: Analyzing trace with hash -229032634, now seen corresponding path program 1 times [2024-11-09 05:32:33,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:32:33,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290764265] [2024-11-09 05:32:33,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:33,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:32:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:46,341 INFO L134 CoverageAnalysis]: Checked inductivity of 3002 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3002 trivial. 0 not checked. [2024-11-09 05:32:46,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:32:46,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290764265] [2024-11-09 05:32:46,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290764265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:32:46,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:32:46,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:32:46,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065663908] [2024-11-09 05:32:46,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:32:46,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:32:46,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:32:46,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:32:46,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:32:46,347 INFO L87 Difference]: Start difference. First operand 5919 states and 8425 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-09 05:32:48,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:32:50,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:32:52,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:33:03,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:33:05,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:33:07,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:33:11,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:33:11,428 INFO L93 Difference]: Finished difference Result 5925 states and 8430 transitions. [2024-11-09 05:33:11,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:33:11,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 341 [2024-11-09 05:33:11,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:33:11,480 INFO L225 Difference]: With dead ends: 5925 [2024-11-09 05:33:11,481 INFO L226 Difference]: Without dead ends: 5923 [2024-11-09 05:33:11,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:33:11,488 INFO L432 NwaCegarLoop]: 1927 mSDtfsCounter, 2232 mSDsluCounter, 3838 mSDsCounter, 0 mSdLazyCounter, 1167 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2233 SdHoareTripleChecker+Valid, 5765 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1167 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:33:11,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2233 Valid, 5765 Invalid, 1173 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1167 Invalid, 6 Unknown, 0 Unchecked, 24.7s Time] [2024-11-09 05:33:11,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5923 states. [2024-11-09 05:33:11,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5923 to 5923. [2024-11-09 05:33:11,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5923 states, 3861 states have (on average 1.334887334887335) internal successors, (5154), 3936 states have internal predecessors, (5154), 1633 states have call successors, (1633), 430 states have call predecessors, (1633), 426 states have return successors, (1641), 1609 states have call predecessors, (1641), 1629 states have call successors, (1641) [2024-11-09 05:33:11,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5923 states to 5923 states and 8428 transitions. [2024-11-09 05:33:11,887 INFO L78 Accepts]: Start accepts. Automaton has 5923 states and 8428 transitions. Word has length 341 [2024-11-09 05:33:11,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:33:11,888 INFO L471 AbstractCegarLoop]: Abstraction has 5923 states and 8428 transitions. [2024-11-09 05:33:11,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-09 05:33:11,892 INFO L276 IsEmpty]: Start isEmpty. Operand 5923 states and 8428 transitions. [2024-11-09 05:33:11,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-09 05:33:11,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:33:11,904 INFO L215 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:33:11,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:33:11,904 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:33:11,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:33:11,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1669284622, now seen corresponding path program 1 times [2024-11-09 05:33:11,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:33:11,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922836369] [2024-11-09 05:33:11,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:11,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:33:24,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:26,693 INFO L134 CoverageAnalysis]: Checked inductivity of 3004 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3002 trivial. 0 not checked. [2024-11-09 05:33:26,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:33:26,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922836369] [2024-11-09 05:33:26,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922836369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:33:26,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:33:26,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:33:26,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439591172] [2024-11-09 05:33:26,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:33:26,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:33:26,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:33:26,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:33:26,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:33:26,698 INFO L87 Difference]: Start difference. First operand 5923 states and 8428 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-09 05:33:28,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:33:30,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:33:33,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:33:43,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:33:45,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:33:46,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:33:50,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:33:50,306 INFO L93 Difference]: Finished difference Result 5929 states and 8433 transitions. [2024-11-09 05:33:50,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:33:50,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 346 [2024-11-09 05:33:50,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:33:50,349 INFO L225 Difference]: With dead ends: 5929 [2024-11-09 05:33:50,350 INFO L226 Difference]: Without dead ends: 5927 [2024-11-09 05:33:50,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:33:50,355 INFO L432 NwaCegarLoop]: 1930 mSDtfsCounter, 2228 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2229 SdHoareTripleChecker+Valid, 5769 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:33:50,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2229 Valid, 5769 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1170 Invalid, 4 Unknown, 0 Unchecked, 23.2s Time] [2024-11-09 05:33:50,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5927 states. [2024-11-09 05:33:50,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5927 to 5927. [2024-11-09 05:33:50,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5927 states, 3864 states have (on average 1.3346273291925466) internal successors, (5157), 3939 states have internal predecessors, (5157), 1633 states have call successors, (1633), 431 states have call predecessors, (1633), 427 states have return successors, (1641), 1609 states have call predecessors, (1641), 1629 states have call successors, (1641) [2024-11-09 05:33:50,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5927 states to 5927 states and 8431 transitions. [2024-11-09 05:33:50,743 INFO L78 Accepts]: Start accepts. Automaton has 5927 states and 8431 transitions. Word has length 346 [2024-11-09 05:33:50,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:33:50,745 INFO L471 AbstractCegarLoop]: Abstraction has 5927 states and 8431 transitions. [2024-11-09 05:33:50,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-09 05:33:50,745 INFO L276 IsEmpty]: Start isEmpty. Operand 5927 states and 8431 transitions. [2024-11-09 05:33:50,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-09 05:33:50,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:33:50,754 INFO L215 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:33:50,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:33:50,755 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:33:50,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:33:50,755 INFO L85 PathProgramCache]: Analyzing trace with hash 265240710, now seen corresponding path program 1 times [2024-11-09 05:33:50,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:33:50,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65447244] [2024-11-09 05:33:50,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:50,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:34:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:34:03,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3010 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3006 trivial. 0 not checked. [2024-11-09 05:34:03,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:34:03,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65447244] [2024-11-09 05:34:03,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65447244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:34:03,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:34:03,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:34:03,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63166330] [2024-11-09 05:34:03,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:34:03,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:34:03,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:34:03,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:34:03,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:34:03,160 INFO L87 Difference]: Start difference. First operand 5927 states and 8431 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-09 05:34:05,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:07,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:09,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:20,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:22,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:23,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:27,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:34:27,343 INFO L93 Difference]: Finished difference Result 5933 states and 8436 transitions. [2024-11-09 05:34:27,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:34:27,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 351 [2024-11-09 05:34:27,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:34:27,380 INFO L225 Difference]: With dead ends: 5933 [2024-11-09 05:34:27,381 INFO L226 Difference]: Without dead ends: 5931 [2024-11-09 05:34:27,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:34:27,385 INFO L432 NwaCegarLoop]: 1930 mSDtfsCounter, 2227 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2228 SdHoareTripleChecker+Valid, 5769 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:34:27,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2228 Valid, 5769 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1170 Invalid, 4 Unknown, 0 Unchecked, 23.7s Time] [2024-11-09 05:34:27,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5931 states. [2024-11-09 05:34:27,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5931 to 5931. [2024-11-09 05:34:27,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5931 states, 3867 states have (on average 1.334367726920093) internal successors, (5160), 3942 states have internal predecessors, (5160), 1633 states have call successors, (1633), 432 states have call predecessors, (1633), 428 states have return successors, (1641), 1609 states have call predecessors, (1641), 1629 states have call successors, (1641) [2024-11-09 05:34:27,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5931 states to 5931 states and 8434 transitions. [2024-11-09 05:34:27,770 INFO L78 Accepts]: Start accepts. Automaton has 5931 states and 8434 transitions. Word has length 351 [2024-11-09 05:34:27,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:34:27,771 INFO L471 AbstractCegarLoop]: Abstraction has 5931 states and 8434 transitions. [2024-11-09 05:34:27,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-09 05:34:27,772 INFO L276 IsEmpty]: Start isEmpty. Operand 5931 states and 8434 transitions. [2024-11-09 05:34:27,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-11-09 05:34:27,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:34:27,782 INFO L215 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:34:27,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 05:34:27,783 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:34:27,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:34:27,783 INFO L85 PathProgramCache]: Analyzing trace with hash 80015666, now seen corresponding path program 1 times [2024-11-09 05:34:27,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:34:27,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800464007] [2024-11-09 05:34:27,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:34:27,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:34:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:34:40,073 INFO L134 CoverageAnalysis]: Checked inductivity of 3020 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3014 trivial. 0 not checked. [2024-11-09 05:34:40,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:34:40,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800464007] [2024-11-09 05:34:40,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800464007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:34:40,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:34:40,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:34:40,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559230671] [2024-11-09 05:34:40,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:34:40,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:34:40,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:34:40,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:34:40,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:34:40,077 INFO L87 Difference]: Start difference. First operand 5931 states and 8434 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2024-11-09 05:34:42,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:44,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:46,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:57,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:59,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:01,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:04,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:35:04,912 INFO L93 Difference]: Finished difference Result 5937 states and 8439 transitions. [2024-11-09 05:35:04,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:35:04,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 356 [2024-11-09 05:35:04,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:35:04,951 INFO L225 Difference]: With dead ends: 5937 [2024-11-09 05:35:04,951 INFO L226 Difference]: Without dead ends: 5935 [2024-11-09 05:35:04,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:35:04,957 INFO L432 NwaCegarLoop]: 1930 mSDtfsCounter, 2226 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2227 SdHoareTripleChecker+Valid, 5769 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:35:04,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2227 Valid, 5769 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1168 Invalid, 6 Unknown, 0 Unchecked, 24.4s Time] [2024-11-09 05:35:04,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5935 states. [2024-11-09 05:35:05,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5935 to 5935. [2024-11-09 05:35:05,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5935 states, 3870 states have (on average 1.334108527131783) internal successors, (5163), 3945 states have internal predecessors, (5163), 1633 states have call successors, (1633), 433 states have call predecessors, (1633), 429 states have return successors, (1641), 1609 states have call predecessors, (1641), 1629 states have call successors, (1641) [2024-11-09 05:35:05,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5935 states to 5935 states and 8437 transitions. [2024-11-09 05:35:05,525 INFO L78 Accepts]: Start accepts. Automaton has 5935 states and 8437 transitions. Word has length 356 [2024-11-09 05:35:05,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:35:05,527 INFO L471 AbstractCegarLoop]: Abstraction has 5935 states and 8437 transitions. [2024-11-09 05:35:05,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2024-11-09 05:35:05,527 INFO L276 IsEmpty]: Start isEmpty. Operand 5935 states and 8437 transitions. [2024-11-09 05:35:05,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-11-09 05:35:05,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:35:05,535 INFO L215 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:35:05,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 05:35:05,535 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:35:05,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:35:05,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1534845894, now seen corresponding path program 1 times [2024-11-09 05:35:05,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:35:05,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686438779] [2024-11-09 05:35:05,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:35:05,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:35:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:35:19,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3034 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3026 trivial. 0 not checked. [2024-11-09 05:35:19,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:35:19,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686438779] [2024-11-09 05:35:19,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686438779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:35:19,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:35:19,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:35:19,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893621798] [2024-11-09 05:35:19,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:35:19,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:35:19,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:35:19,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:35:19,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:35:19,168 INFO L87 Difference]: Start difference. First operand 5935 states and 8437 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2024-11-09 05:35:21,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:23,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:25,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:35,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:37,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:39,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:43,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:35:43,745 INFO L93 Difference]: Finished difference Result 5941 states and 8442 transitions. [2024-11-09 05:35:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:35:43,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 361 [2024-11-09 05:35:43,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:35:43,782 INFO L225 Difference]: With dead ends: 5941 [2024-11-09 05:35:43,782 INFO L226 Difference]: Without dead ends: 5939 [2024-11-09 05:35:43,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:35:43,788 INFO L432 NwaCegarLoop]: 1930 mSDtfsCounter, 2225 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 5769 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:35:43,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2226 Valid, 5769 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1169 Invalid, 5 Unknown, 0 Unchecked, 24.1s Time] [2024-11-09 05:35:43,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5939 states. [2024-11-09 05:35:44,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5939 to 5939. [2024-11-09 05:35:44,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5939 states, 3873 states have (on average 1.3338497288923314) internal successors, (5166), 3948 states have internal predecessors, (5166), 1633 states have call successors, (1633), 434 states have call predecessors, (1633), 430 states have return successors, (1641), 1609 states have call predecessors, (1641), 1629 states have call successors, (1641) [2024-11-09 05:35:44,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5939 states to 5939 states and 8440 transitions. [2024-11-09 05:35:44,414 INFO L78 Accepts]: Start accepts. Automaton has 5939 states and 8440 transitions. Word has length 361 [2024-11-09 05:35:44,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:35:44,419 INFO L471 AbstractCegarLoop]: Abstraction has 5939 states and 8440 transitions. [2024-11-09 05:35:44,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2024-11-09 05:35:44,420 INFO L276 IsEmpty]: Start isEmpty. Operand 5939 states and 8440 transitions. [2024-11-09 05:35:44,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-11-09 05:35:44,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:35:44,440 INFO L215 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:35:44,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 05:35:44,440 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:35:44,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:35:44,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1899717417, now seen corresponding path program 1 times [2024-11-09 05:35:44,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:35:44,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946882735] [2024-11-09 05:35:44,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:35:44,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:35:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:35:58,510 INFO L134 CoverageAnalysis]: Checked inductivity of 3055 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3045 trivial. 0 not checked. [2024-11-09 05:35:58,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:35:58,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946882735] [2024-11-09 05:35:58,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946882735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:35:58,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:35:58,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:35:58,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391031942] [2024-11-09 05:35:58,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:35:58,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:35:58,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:35:58,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:35:58,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:35:58,513 INFO L87 Difference]: Start difference. First operand 5939 states and 8440 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2024-11-09 05:36:00,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:02,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:05,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:15,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:17,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:19,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:22,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:24,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:36:24,131 INFO L93 Difference]: Finished difference Result 5945 states and 8445 transitions. [2024-11-09 05:36:24,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:36:24,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 372 [2024-11-09 05:36:24,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:36:24,172 INFO L225 Difference]: With dead ends: 5945 [2024-11-09 05:36:24,172 INFO L226 Difference]: Without dead ends: 5943 [2024-11-09 05:36:24,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:36:24,179 INFO L432 NwaCegarLoop]: 1930 mSDtfsCounter, 2223 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2224 SdHoareTripleChecker+Valid, 5769 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:36:24,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2224 Valid, 5769 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1169 Invalid, 5 Unknown, 0 Unchecked, 25.2s Time] [2024-11-09 05:36:24,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5943 states. [2024-11-09 05:36:24,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5943 to 5943. [2024-11-09 05:36:24,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5943 states, 3876 states have (on average 1.33359133126935) internal successors, (5169), 3951 states have internal predecessors, (5169), 1633 states have call successors, (1633), 435 states have call predecessors, (1633), 431 states have return successors, (1641), 1609 states have call predecessors, (1641), 1629 states have call successors, (1641) [2024-11-09 05:36:24,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5943 states to 5943 states and 8443 transitions. [2024-11-09 05:36:24,891 INFO L78 Accepts]: Start accepts. Automaton has 5943 states and 8443 transitions. Word has length 372 [2024-11-09 05:36:24,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:36:24,893 INFO L471 AbstractCegarLoop]: Abstraction has 5943 states and 8443 transitions. [2024-11-09 05:36:24,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2024-11-09 05:36:24,893 INFO L276 IsEmpty]: Start isEmpty. Operand 5943 states and 8443 transitions. [2024-11-09 05:36:24,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-09 05:36:24,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:36:24,902 INFO L215 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 7, 6, 6, 4, 4, 3, 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] [2024-11-09 05:36:24,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 05:36:24,903 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:36:24,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:36:24,904 INFO L85 PathProgramCache]: Analyzing trace with hash 720778947, now seen corresponding path program 1 times [2024-11-09 05:36:24,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:36:24,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947772896] [2024-11-09 05:36:24,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:36:24,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:36:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:36:38,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3076 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3064 trivial. 0 not checked. [2024-11-09 05:36:38,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:36:38,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947772896] [2024-11-09 05:36:38,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947772896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:36:38,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:36:38,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:36:38,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141956902] [2024-11-09 05:36:38,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:36:38,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:36:38,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:36:38,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:36:38,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:36:38,895 INFO L87 Difference]: Start difference. First operand 5943 states and 8443 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2024-11-09 05:36:40,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:43,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:45,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:56,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:58,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:00,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:03,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:37:03,878 INFO L93 Difference]: Finished difference Result 5949 states and 8448 transitions. [2024-11-09 05:37:03,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:37:03,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 376 [2024-11-09 05:37:03,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:37:03,916 INFO L225 Difference]: With dead ends: 5949 [2024-11-09 05:37:03,916 INFO L226 Difference]: Without dead ends: 5947 [2024-11-09 05:37:03,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:37:03,922 INFO L432 NwaCegarLoop]: 1930 mSDtfsCounter, 2222 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2223 SdHoareTripleChecker+Valid, 5769 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:37:03,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2223 Valid, 5769 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1168 Invalid, 6 Unknown, 0 Unchecked, 24.5s Time] [2024-11-09 05:37:03,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5947 states. [2024-11-09 05:37:04,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5947 to 5947. [2024-11-09 05:37:04,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5947 states, 3879 states have (on average 1.3333333333333333) internal successors, (5172), 3954 states have internal predecessors, (5172), 1633 states have call successors, (1633), 436 states have call predecessors, (1633), 432 states have return successors, (1641), 1609 states have call predecessors, (1641), 1629 states have call successors, (1641) [2024-11-09 05:37:04,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5947 states to 5947 states and 8446 transitions. [2024-11-09 05:37:04,636 INFO L78 Accepts]: Start accepts. Automaton has 5947 states and 8446 transitions. Word has length 376 [2024-11-09 05:37:04,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:37:04,638 INFO L471 AbstractCegarLoop]: Abstraction has 5947 states and 8446 transitions. [2024-11-09 05:37:04,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2024-11-09 05:37:04,638 INFO L276 IsEmpty]: Start isEmpty. Operand 5947 states and 8446 transitions. [2024-11-09 05:37:04,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2024-11-09 05:37:04,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:37:04,649 INFO L215 NwaCegarLoop]: trace histogram [31, 27, 27, 27, 27, 27, 27, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:37:04,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 05:37:04,649 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:37:04,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:37:04,650 INFO L85 PathProgramCache]: Analyzing trace with hash -387170138, now seen corresponding path program 1 times [2024-11-09 05:37:04,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:37:04,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986186447] [2024-11-09 05:37:04,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:37:04,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:37:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:37:18,066 INFO L134 CoverageAnalysis]: Checked inductivity of 3073 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3070 trivial. 0 not checked. [2024-11-09 05:37:18,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:37:18,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986186447] [2024-11-09 05:37:18,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986186447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:37:18,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:37:18,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:37:18,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404192460] [2024-11-09 05:37:18,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:37:18,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:37:18,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:37:18,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:37:18,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:37:18,070 INFO L87 Difference]: Start difference. First operand 5947 states and 8446 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-11-09 05:37:20,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:22,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:35,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:37,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:38,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:37:38,200 INFO L93 Difference]: Finished difference Result 12027 states and 17078 transitions. [2024-11-09 05:37:38,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:37:38,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 377 [2024-11-09 05:37:38,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:37:38,247 INFO L225 Difference]: With dead ends: 12027 [2024-11-09 05:37:38,247 INFO L226 Difference]: Without dead ends: 7475 [2024-11-09 05:37:38,271 INFO L431 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 [2024-11-09 05:37:38,272 INFO L432 NwaCegarLoop]: 2816 mSDtfsCounter, 1094 mSDsluCounter, 1871 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 4687 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:37:38,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 4687 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1013 Invalid, 3 Unknown, 0 Unchecked, 19.6s Time] [2024-11-09 05:37:38,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7475 states. [2024-11-09 05:37:39,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7475 to 7417. [2024-11-09 05:37:39,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7417 states, 4851 states have (on average 1.3320964749536177) internal successors, (6462), 4946 states have internal predecessors, (6462), 2019 states have call successors, (2019), 550 states have call predecessors, (2019), 544 states have return successors, (2029), 1984 states have call predecessors, (2029), 2015 states have call successors, (2029) [2024-11-09 05:37:39,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7417 states to 7417 states and 10510 transitions. [2024-11-09 05:37:39,126 INFO L78 Accepts]: Start accepts. Automaton has 7417 states and 10510 transitions. Word has length 377 [2024-11-09 05:37:39,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:37:39,127 INFO L471 AbstractCegarLoop]: Abstraction has 7417 states and 10510 transitions. [2024-11-09 05:37:39,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-11-09 05:37:39,128 INFO L276 IsEmpty]: Start isEmpty. Operand 7417 states and 10510 transitions. [2024-11-09 05:37:39,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2024-11-09 05:37:39,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:37:39,138 INFO L215 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 8, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:37:39,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 05:37:39,139 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:37:39,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:37:39,140 INFO L85 PathProgramCache]: Analyzing trace with hash -327854377, now seen corresponding path program 1 times [2024-11-09 05:37:39,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:37:39,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149148523] [2024-11-09 05:37:39,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:37:39,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:37:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:37:53,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3103 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3089 trivial. 0 not checked. [2024-11-09 05:37:53,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:37:53,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149148523] [2024-11-09 05:37:53,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149148523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:37:53,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:37:53,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:37:53,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521964551] [2024-11-09 05:37:53,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:37:53,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:37:53,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:37:53,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:37:53,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:37:53,589 INFO L87 Difference]: Start difference. First operand 7417 states and 10510 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2024-11-09 05:37:55,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:57,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:00,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:08,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:15,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:17,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:19,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:21,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:38:21,218 INFO L93 Difference]: Finished difference Result 7998 states and 11193 transitions. [2024-11-09 05:38:21,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:38:21,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 382 [2024-11-09 05:38:21,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:38:21,258 INFO L225 Difference]: With dead ends: 7998 [2024-11-09 05:38:21,258 INFO L226 Difference]: Without dead ends: 7996 [2024-11-09 05:38:21,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:38:21,263 INFO L432 NwaCegarLoop]: 1946 mSDtfsCounter, 2117 mSDsluCounter, 4046 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2118 SdHoareTripleChecker+Valid, 5992 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:38:21,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2118 Valid, 5992 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1230 Invalid, 6 Unknown, 0 Unchecked, 26.9s Time] [2024-11-09 05:38:21,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7996 states. [2024-11-09 05:38:22,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7996 to 7996. [2024-11-09 05:38:22,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7996 states, 5222 states have (on average 1.3219073152049023) internal successors, (6903), 5318 states have internal predecessors, (6903), 2139 states have call successors, (2139), 638 states have call predecessors, (2139), 632 states have return successors, (2149), 2103 states have call predecessors, (2149), 2135 states have call successors, (2149) [2024-11-09 05:38:22,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7996 states to 7996 states and 11191 transitions. [2024-11-09 05:38:22,096 INFO L78 Accepts]: Start accepts. Automaton has 7996 states and 11191 transitions. Word has length 382 [2024-11-09 05:38:22,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:38:22,097 INFO L471 AbstractCegarLoop]: Abstraction has 7996 states and 11191 transitions. [2024-11-09 05:38:22,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2024-11-09 05:38:22,098 INFO L276 IsEmpty]: Start isEmpty. Operand 7996 states and 11191 transitions. [2024-11-09 05:38:22,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2024-11-09 05:38:22,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:38:22,109 INFO L215 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 9, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:38:22,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 05:38:22,109 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:38:22,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:38:22,110 INFO L85 PathProgramCache]: Analyzing trace with hash 676923974, now seen corresponding path program 1 times [2024-11-09 05:38:22,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:38:22,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471609232] [2024-11-09 05:38:22,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:38:22,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:38:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:38:36,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3130 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3114 trivial. 0 not checked. [2024-11-09 05:38:36,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:38:36,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471609232] [2024-11-09 05:38:36,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471609232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:38:36,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:38:36,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:38:36,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329055506] [2024-11-09 05:38:36,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:38:36,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:38:36,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:38:36,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:38:36,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:38:36,365 INFO L87 Difference]: Start difference. First operand 7996 states and 11191 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2024-11-09 05:38:38,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:40,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:42,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:55,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:57,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:58,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:59,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:38:59,935 INFO L93 Difference]: Finished difference Result 8002 states and 11196 transitions. [2024-11-09 05:38:59,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:38:59,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 381 [2024-11-09 05:38:59,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:38:59,975 INFO L225 Difference]: With dead ends: 8002 [2024-11-09 05:38:59,975 INFO L226 Difference]: Without dead ends: 8000 [2024-11-09 05:38:59,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:38:59,982 INFO L432 NwaCegarLoop]: 1930 mSDtfsCounter, 2221 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2222 SdHoareTripleChecker+Valid, 5769 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:38:59,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2222 Valid, 5769 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1170 Invalid, 4 Unknown, 0 Unchecked, 22.9s Time] [2024-11-09 05:38:59,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8000 states. [2024-11-09 05:39:00,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8000 to 8000. [2024-11-09 05:39:00,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8000 states, 5225 states have (on average 1.3217224880382774) internal successors, (6906), 5321 states have internal predecessors, (6906), 2139 states have call successors, (2139), 639 states have call predecessors, (2139), 633 states have return successors, (2149), 2103 states have call predecessors, (2149), 2135 states have call successors, (2149) [2024-11-09 05:39:00,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8000 states to 8000 states and 11194 transitions. [2024-11-09 05:39:00,702 INFO L78 Accepts]: Start accepts. Automaton has 8000 states and 11194 transitions. Word has length 381 [2024-11-09 05:39:00,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:39:00,703 INFO L471 AbstractCegarLoop]: Abstraction has 8000 states and 11194 transitions. [2024-11-09 05:39:00,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2024-11-09 05:39:00,704 INFO L276 IsEmpty]: Start isEmpty. Operand 8000 states and 11194 transitions. [2024-11-09 05:39:00,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-09 05:39:00,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:39:00,713 INFO L215 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 10, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:39:00,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 05:39:00,713 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:39:00,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:39:00,714 INFO L85 PathProgramCache]: Analyzing trace with hash 980893911, now seen corresponding path program 1 times [2024-11-09 05:39:00,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:39:00,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600726884] [2024-11-09 05:39:00,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:39:00,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:39:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:39:15,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3167 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3149 trivial. 0 not checked. [2024-11-09 05:39:15,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:39:15,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600726884] [2024-11-09 05:39:15,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600726884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:39:15,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:39:15,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:39:15,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953585056] [2024-11-09 05:39:15,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:39:15,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:39:15,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:39:15,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:39:15,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:39:15,272 INFO L87 Difference]: Start difference. First operand 8000 states and 11194 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2024-11-09 05:39:17,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:19,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:21,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:36,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:37,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:39,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:40,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:39:40,813 INFO L93 Difference]: Finished difference Result 8006 states and 11199 transitions. [2024-11-09 05:39:40,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:39:40,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 392 [2024-11-09 05:39:40,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:39:40,856 INFO L225 Difference]: With dead ends: 8006 [2024-11-09 05:39:40,856 INFO L226 Difference]: Without dead ends: 8004 [2024-11-09 05:39:40,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:39:40,863 INFO L432 NwaCegarLoop]: 1930 mSDtfsCounter, 2219 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2220 SdHoareTripleChecker+Valid, 5769 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:39:40,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2220 Valid, 5769 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1170 Invalid, 4 Unknown, 0 Unchecked, 24.8s Time] [2024-11-09 05:39:40,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8004 states. [2024-11-09 05:39:41,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8004 to 8004. [2024-11-09 05:39:41,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8004 states, 5228 states have (on average 1.3215378729915839) internal successors, (6909), 5324 states have internal predecessors, (6909), 2139 states have call successors, (2139), 640 states have call predecessors, (2139), 634 states have return successors, (2149), 2103 states have call predecessors, (2149), 2135 states have call successors, (2149) [2024-11-09 05:39:41,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8004 states to 8004 states and 11197 transitions. [2024-11-09 05:39:41,721 INFO L78 Accepts]: Start accepts. Automaton has 8004 states and 11197 transitions. Word has length 392 [2024-11-09 05:39:41,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:39:41,722 INFO L471 AbstractCegarLoop]: Abstraction has 8004 states and 11197 transitions. [2024-11-09 05:39:41,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2024-11-09 05:39:41,723 INFO L276 IsEmpty]: Start isEmpty. Operand 8004 states and 11197 transitions. [2024-11-09 05:39:41,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-09 05:39:41,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:39:41,731 INFO L215 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 11, 10, 10, 4, 4, 3, 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] [2024-11-09 05:39:41,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 05:39:41,731 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:39:41,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:39:41,732 INFO L85 PathProgramCache]: Analyzing trace with hash -819438397, now seen corresponding path program 1 times [2024-11-09 05:39:41,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:39:41,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141033414] [2024-11-09 05:39:41,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:39:41,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:39:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:39:53,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3204 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3184 trivial. 0 not checked. [2024-11-09 05:39:53,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:39:53,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141033414] [2024-11-09 05:39:53,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141033414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:39:53,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:39:53,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:39:53,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445160050] [2024-11-09 05:39:53,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:39:53,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:39:53,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:39:53,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:39:53,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:39:53,780 INFO L87 Difference]: Start difference. First operand 8004 states and 11197 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-09 05:39:55,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:58,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:00,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:13,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:15,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:16,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:40:16,816 INFO L93 Difference]: Finished difference Result 8010 states and 11202 transitions. [2024-11-09 05:40:16,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:40:16,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 396 [2024-11-09 05:40:16,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:40:16,851 INFO L225 Difference]: With dead ends: 8010 [2024-11-09 05:40:16,851 INFO L226 Difference]: Without dead ends: 8008 [2024-11-09 05:40:16,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:40:16,856 INFO L432 NwaCegarLoop]: 1930 mSDtfsCounter, 2218 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2219 SdHoareTripleChecker+Valid, 5769 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:40:16,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2219 Valid, 5769 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1170 Invalid, 4 Unknown, 0 Unchecked, 22.2s Time] [2024-11-09 05:40:16,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8008 states. [2024-11-09 05:40:17,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8008 to 8008. [2024-11-09 05:40:17,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8008 states, 5231 states have (on average 1.3213534696998661) internal successors, (6912), 5327 states have internal predecessors, (6912), 2139 states have call successors, (2139), 641 states have call predecessors, (2139), 635 states have return successors, (2149), 2103 states have call predecessors, (2149), 2135 states have call successors, (2149) [2024-11-09 05:40:17,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8008 states to 8008 states and 11200 transitions. [2024-11-09 05:40:17,750 INFO L78 Accepts]: Start accepts. Automaton has 8008 states and 11200 transitions. Word has length 396 [2024-11-09 05:40:17,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:40:17,751 INFO L471 AbstractCegarLoop]: Abstraction has 8008 states and 11200 transitions. [2024-11-09 05:40:17,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-09 05:40:17,752 INFO L276 IsEmpty]: Start isEmpty. Operand 8008 states and 11200 transitions. [2024-11-09 05:40:17,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-11-09 05:40:17,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:40:17,763 INFO L215 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 12, 11, 11, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:40:17,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 05:40:17,763 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:40:17,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:40:17,764 INFO L85 PathProgramCache]: Analyzing trace with hash -384935209, now seen corresponding path program 1 times [2024-11-09 05:40:17,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:40:17,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195634686] [2024-11-09 05:40:17,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:40:17,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:40:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:40:32,561 INFO L134 CoverageAnalysis]: Checked inductivity of 3247 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 3225 trivial. 0 not checked. [2024-11-09 05:40:32,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:40:32,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195634686] [2024-11-09 05:40:32,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195634686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:40:32,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:40:32,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:40:32,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117535819] [2024-11-09 05:40:32,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:40:32,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:40:32,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:40:32,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:40:32,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:40:32,564 INFO L87 Difference]: Start difference. First operand 8008 states and 11200 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-09 05:40:34,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:36,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:39,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:52,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:54,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:56,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:57,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:40:57,706 INFO L93 Difference]: Finished difference Result 8014 states and 11205 transitions. [2024-11-09 05:40:57,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:40:57,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 402 [2024-11-09 05:40:57,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:40:57,747 INFO L225 Difference]: With dead ends: 8014 [2024-11-09 05:40:57,747 INFO L226 Difference]: Without dead ends: 8012 [2024-11-09 05:40:57,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:40:57,754 INFO L432 NwaCegarLoop]: 1930 mSDtfsCounter, 2217 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2218 SdHoareTripleChecker+Valid, 5769 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:40:57,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2218 Valid, 5769 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1169 Invalid, 5 Unknown, 0 Unchecked, 24.3s Time] [2024-11-09 05:40:57,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8012 states. [2024-11-09 05:40:58,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8012 to 8012. [2024-11-09 05:40:58,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8012 states, 5234 states have (on average 1.3211692777990065) internal successors, (6915), 5330 states have internal predecessors, (6915), 2139 states have call successors, (2139), 642 states have call predecessors, (2139), 636 states have return successors, (2149), 2103 states have call predecessors, (2149), 2135 states have call successors, (2149) [2024-11-09 05:40:58,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8012 states to 8012 states and 11203 transitions. [2024-11-09 05:40:58,739 INFO L78 Accepts]: Start accepts. Automaton has 8012 states and 11203 transitions. Word has length 402 [2024-11-09 05:40:58,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:40:58,740 INFO L471 AbstractCegarLoop]: Abstraction has 8012 states and 11203 transitions. [2024-11-09 05:40:58,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-09 05:40:58,740 INFO L276 IsEmpty]: Start isEmpty. Operand 8012 states and 11203 transitions. [2024-11-09 05:40:58,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-09 05:40:58,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:40:58,749 INFO L215 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 13, 12, 12, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:40:58,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 05:40:58,750 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:40:58,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:40:58,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1297043258, now seen corresponding path program 1 times [2024-11-09 05:40:58,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:40:58,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159390363] [2024-11-09 05:40:58,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:40:58,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:12,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3290 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 3266 trivial. 0 not checked. [2024-11-09 05:41:12,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:12,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159390363] [2024-11-09 05:41:12,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159390363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:41:12,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:41:12,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:41:12,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515370439] [2024-11-09 05:41:12,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:41:12,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:41:12,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:12,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:41:12,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:41:12,692 INFO L87 Difference]: Start difference. First operand 8012 states and 11203 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2024-11-09 05:41:14,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:16,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:19,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:32,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:34,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:36,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:38,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:38,130 INFO L93 Difference]: Finished difference Result 8018 states and 11208 transitions. [2024-11-09 05:41:38,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:41:38,131 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 401 [2024-11-09 05:41:38,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:38,166 INFO L225 Difference]: With dead ends: 8018 [2024-11-09 05:41:38,167 INFO L226 Difference]: Without dead ends: 8016 [2024-11-09 05:41:38,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:41:38,173 INFO L432 NwaCegarLoop]: 1930 mSDtfsCounter, 2217 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2218 SdHoareTripleChecker+Valid, 5769 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:38,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2218 Valid, 5769 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1168 Invalid, 6 Unknown, 0 Unchecked, 24.5s Time] [2024-11-09 05:41:38,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8016 states. [2024-11-09 05:41:38,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8016 to 8016. [2024-11-09 05:41:38,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8016 states, 5237 states have (on average 1.3209852969257208) internal successors, (6918), 5333 states have internal predecessors, (6918), 2139 states have call successors, (2139), 643 states have call predecessors, (2139), 637 states have return successors, (2149), 2103 states have call predecessors, (2149), 2135 states have call successors, (2149) [2024-11-09 05:41:38,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8016 states to 8016 states and 11206 transitions. [2024-11-09 05:41:38,969 INFO L78 Accepts]: Start accepts. Automaton has 8016 states and 11206 transitions. Word has length 401 [2024-11-09 05:41:38,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:38,970 INFO L471 AbstractCegarLoop]: Abstraction has 8016 states and 11206 transitions. [2024-11-09 05:41:38,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2024-11-09 05:41:38,971 INFO L276 IsEmpty]: Start isEmpty. Operand 8016 states and 11206 transitions. [2024-11-09 05:41:38,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-09 05:41:38,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:38,983 INFO L215 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 14, 13, 13, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:41:38,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 05:41:38,983 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:41:38,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:38,984 INFO L85 PathProgramCache]: Analyzing trace with hash -478239529, now seen corresponding path program 1 times [2024-11-09 05:41:38,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:38,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947360213] [2024-11-09 05:41:38,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:38,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:52,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3343 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 3317 trivial. 0 not checked. [2024-11-09 05:41:52,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:52,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947360213] [2024-11-09 05:41:52,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947360213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:41:52,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:41:52,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:41:52,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996881548] [2024-11-09 05:41:52,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:41:52,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:41:52,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:52,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:41:52,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:41:52,941 INFO L87 Difference]: Start difference. First operand 8016 states and 11206 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2024-11-09 05:41:55,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:57,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:59,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:12,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:15,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:42:15,289 INFO L93 Difference]: Finished difference Result 8022 states and 11211 transitions. [2024-11-09 05:42:15,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:42:15,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 412 [2024-11-09 05:42:15,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:42:15,315 INFO L225 Difference]: With dead ends: 8022 [2024-11-09 05:42:15,316 INFO L226 Difference]: Without dead ends: 8018 [2024-11-09 05:42:15,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:42:15,319 INFO L432 NwaCegarLoop]: 1930 mSDtfsCounter, 2215 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2216 SdHoareTripleChecker+Valid, 5769 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:42:15,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2216 Valid, 5769 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1171 Invalid, 3 Unknown, 0 Unchecked, 21.5s Time] [2024-11-09 05:42:15,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8018 states. [2024-11-09 05:42:16,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8018 to 8018. [2024-11-09 05:42:16,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8018 states, 5239 states have (on average 1.3206718839473182) internal successors, (6919), 5334 states have internal predecessors, (6919), 2139 states have call successors, (2139), 644 states have call predecessors, (2139), 637 states have return successors, (2149), 2103 states have call predecessors, (2149), 2135 states have call successors, (2149) [2024-11-09 05:42:16,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8018 states to 8018 states and 11207 transitions. [2024-11-09 05:42:16,085 INFO L78 Accepts]: Start accepts. Automaton has 8018 states and 11207 transitions. Word has length 412 [2024-11-09 05:42:16,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:42:16,086 INFO L471 AbstractCegarLoop]: Abstraction has 8018 states and 11207 transitions. [2024-11-09 05:42:16,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2024-11-09 05:42:16,086 INFO L276 IsEmpty]: Start isEmpty. Operand 8018 states and 11207 transitions. [2024-11-09 05:42:16,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2024-11-09 05:42:16,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:42:16,095 INFO L215 NwaCegarLoop]: trace histogram [29, 28, 28, 28, 28, 28, 28, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:42:16,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 05:42:16,095 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:42:16,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:42:16,095 INFO L85 PathProgramCache]: Analyzing trace with hash 555432752, now seen corresponding path program 1 times [2024-11-09 05:42:16,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:42:16,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745713717] [2024-11-09 05:42:16,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:42:16,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:42:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:42:28,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3110 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3110 trivial. 0 not checked. [2024-11-09 05:42:28,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:42:28,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745713717] [2024-11-09 05:42:28,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745713717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:42:28,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:42:28,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:42:28,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347995693] [2024-11-09 05:42:28,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:42:28,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:42:28,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:42:28,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:42:28,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:42:28,124 INFO L87 Difference]: Start difference. First operand 8018 states and 11207 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-09 05:42:30,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:32,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:42,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:45,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:46,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:42:46,206 INFO L93 Difference]: Finished difference Result 19198 states and 26892 transitions. [2024-11-09 05:42:46,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:42:46,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 418 [2024-11-09 05:42:46,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:42:46,255 INFO L225 Difference]: With dead ends: 19198 [2024-11-09 05:42:46,256 INFO L226 Difference]: Without dead ends: 11235 [2024-11-09 05:42:46,286 INFO L431 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 [2024-11-09 05:42:46,286 INFO L432 NwaCegarLoop]: 2396 mSDtfsCounter, 2122 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 4301 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:42:46,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2122 Valid, 4301 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 896 Invalid, 3 Unknown, 0 Unchecked, 17.0s Time] [2024-11-09 05:42:46,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11235 states. [2024-11-09 05:42:47,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11235 to 11141. [2024-11-09 05:42:47,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11141 states, 7263 states have (on average 1.3274129147735096) internal successors, (9641), 7426 states have internal predecessors, (9641), 2975 states have call successors, (2975), 912 states have call predecessors, (2975), 900 states have return successors, (2990), 2896 states have call predecessors, (2990), 2971 states have call successors, (2990) [2024-11-09 05:42:47,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11141 states to 11141 states and 15606 transitions. [2024-11-09 05:42:47,602 INFO L78 Accepts]: Start accepts. Automaton has 11141 states and 15606 transitions. Word has length 418 [2024-11-09 05:42:47,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:42:47,603 INFO L471 AbstractCegarLoop]: Abstraction has 11141 states and 15606 transitions. [2024-11-09 05:42:47,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-09 05:42:47,603 INFO L276 IsEmpty]: Start isEmpty. Operand 11141 states and 15606 transitions. [2024-11-09 05:42:47,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2024-11-09 05:42:47,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:42:47,611 INFO L215 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 15, 14, 14, 4, 4, 3, 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] [2024-11-09 05:42:47,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 05:42:47,611 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:42:47,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:42:47,612 INFO L85 PathProgramCache]: Analyzing trace with hash -405126461, now seen corresponding path program 1 times [2024-11-09 05:42:47,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:42:47,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389251195] [2024-11-09 05:42:47,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:42:47,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:42:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:43:00,095 INFO L134 CoverageAnalysis]: Checked inductivity of 3396 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 3368 trivial. 0 not checked. [2024-11-09 05:43:00,096 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:43:00,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389251195] [2024-11-09 05:43:00,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389251195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:43:00,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:43:00,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:43:00,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544116907] [2024-11-09 05:43:00,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:43:00,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:43:00,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:43:00,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:43:00,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:43:00,101 INFO L87 Difference]: Start difference. First operand 11141 states and 15606 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-09 05:43:02,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:43:04,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:43:06,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:43:19,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:43:21,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:43:23,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:43:25,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:43:25,193 INFO L93 Difference]: Finished difference Result 11141 states and 15606 transitions. [2024-11-09 05:43:25,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:43:25,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 416 [2024-11-09 05:43:25,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:43:25,230 INFO L225 Difference]: With dead ends: 11141 [2024-11-09 05:43:25,230 INFO L226 Difference]: Without dead ends: 10955 [2024-11-09 05:43:25,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:43:25,237 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2211 mSDsluCounter, 3837 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 5765 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:43:25,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2211 Valid, 5765 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1162 Invalid, 6 Unknown, 0 Unchecked, 24.0s Time] [2024-11-09 05:43:25,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10955 states. [2024-11-09 05:43:26,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10955 to 10955. [2024-11-09 05:43:26,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10955 states, 7194 states have (on average 1.3255490686683347) internal successors, (9536), 7321 states have internal predecessors, (9536), 2881 states have call successors, (2881), 880 states have call predecessors, (2881), 878 states have return successors, (2900), 2847 states have call predecessors, (2900), 2881 states have call successors, (2900) [2024-11-09 05:43:26,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10955 states to 10955 states and 15317 transitions. [2024-11-09 05:43:26,286 INFO L78 Accepts]: Start accepts. Automaton has 10955 states and 15317 transitions. Word has length 416 [2024-11-09 05:43:26,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:43:26,287 INFO L471 AbstractCegarLoop]: Abstraction has 10955 states and 15317 transitions. [2024-11-09 05:43:26,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-09 05:43:26,287 INFO L276 IsEmpty]: Start isEmpty. Operand 10955 states and 15317 transitions. [2024-11-09 05:43:26,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-09 05:43:26,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:43:26,294 INFO L215 NwaCegarLoop]: trace histogram [34, 27, 27, 27, 27, 27, 27, 13, 13, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:43:26,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 05:43:26,295 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:43:26,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:43:26,295 INFO L85 PathProgramCache]: Analyzing trace with hash -903639177, now seen corresponding path program 1 times [2024-11-09 05:43:26,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:43:26,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557411670] [2024-11-09 05:43:26,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:43:26,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:43:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:43:38,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3532 trivial. 0 not checked. [2024-11-09 05:43:38,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:43:38,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557411670] [2024-11-09 05:43:38,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557411670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:43:38,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:43:38,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:43:38,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495224812] [2024-11-09 05:43:38,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:43:38,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:43:38,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:43:38,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:43:38,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:43:38,197 INFO L87 Difference]: Start difference. First operand 10955 states and 15317 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2024-11-09 05:43:40,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:43:42,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:43:44,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:43:58,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:44:00,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:44:02,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:02,129 INFO L93 Difference]: Finished difference Result 10955 states and 15317 transitions. [2024-11-09 05:44:02,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:44:02,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 469 [2024-11-09 05:44:02,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:02,157 INFO L225 Difference]: With dead ends: 10955 [2024-11-09 05:44:02,157 INFO L226 Difference]: Without dead ends: 10953 [2024-11-09 05:44:02,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:44:02,162 INFO L432 NwaCegarLoop]: 1888 mSDtfsCounter, 2017 mSDsluCounter, 3950 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2018 SdHoareTripleChecker+Valid, 5838 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:02,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2018 Valid, 5838 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1201 Invalid, 3 Unknown, 0 Unchecked, 22.9s Time] [2024-11-09 05:44:02,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10953 states. [2024-11-09 05:44:03,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10953 to 10953. [2024-11-09 05:44:03,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10953 states, 7193 states have (on average 1.3242040873071041) internal successors, (9525), 7319 states have internal predecessors, (9525), 2881 states have call successors, (2881), 880 states have call predecessors, (2881), 878 states have return successors, (2900), 2847 states have call predecessors, (2900), 2881 states have call successors, (2900) [2024-11-09 05:44:03,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10953 states to 10953 states and 15306 transitions. [2024-11-09 05:44:03,101 INFO L78 Accepts]: Start accepts. Automaton has 10953 states and 15306 transitions. Word has length 469 [2024-11-09 05:44:03,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:03,101 INFO L471 AbstractCegarLoop]: Abstraction has 10953 states and 15306 transitions. [2024-11-09 05:44:03,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2024-11-09 05:44:03,102 INFO L276 IsEmpty]: Start isEmpty. Operand 10953 states and 15306 transitions. [2024-11-09 05:44:03,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-11-09 05:44:03,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:03,112 INFO L215 NwaCegarLoop]: trace histogram [34, 27, 27, 27, 27, 27, 27, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:03,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 05:44:03,113 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:44:03,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:03,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1817961574, now seen corresponding path program 1 times [2024-11-09 05:44:03,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:03,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206056901] [2024-11-09 05:44:03,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:03,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:14,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3571 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3571 trivial. 0 not checked. [2024-11-09 05:44:14,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:14,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206056901] [2024-11-09 05:44:14,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206056901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:14,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:14,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:44:14,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828155287] [2024-11-09 05:44:14,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:14,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:44:14,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:14,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:44:14,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:44:14,060 INFO L87 Difference]: Start difference. First operand 10953 states and 15306 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2024-11-09 05:44:16,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:44:18,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []