./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 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/bin/utaipan-verify-mE87zJ7Ire/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_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:53,029 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:53,145 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:16:53,152 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:53,153 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:53,192 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:53,193 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:53,194 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:53,195 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:53,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:53,200 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:53,201 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:53,202 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:53,204 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:53,204 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:53,205 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:53,205 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:53,206 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:53,206 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:53,207 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:53,207 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:53,208 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:53,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:53,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:53,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:53,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:53,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:53,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:53,212 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:53,212 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:53,214 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:53,214 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:53,214 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:53,214 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:53,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:53,215 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:53,215 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:53,216 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:53,216 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:53,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:53,216 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:53,217 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:53,217 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:53,217 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:53,218 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_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 [2023-11-23 21:16:53,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:53,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:53,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:53,589 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:53,590 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:53,591 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2023-11-23 21:16:56,693 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:57,504 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:57,505 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2023-11-23 21:16:57,576 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/bin/utaipan-verify-mE87zJ7Ire/data/774c5da18/9ce271a2c892493189192d4800aaf2bd/FLAGf45b470c2 [2023-11-23 21:16:57,592 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/bin/utaipan-verify-mE87zJ7Ire/data/774c5da18/9ce271a2c892493189192d4800aaf2bd [2023-11-23 21:16:57,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:57,596 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:57,598 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:57,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:57,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:57,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:57" (1/1) ... [2023-11-23 21:16:57,605 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd0a186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:57, skipping insertion in model container [2023-11-23 21:16:57,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:57" (1/1) ... [2023-11-23 21:16:57,922 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:17:02,384 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2023-11-23 21:17:02,388 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2023-11-23 21:17:02,388 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2023-11-23 21:17:02,390 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2023-11-23 21:17:02,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:17:02,510 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:17:02,684 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] [2023-11-23 21:17:02,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5786] [2023-11-23 21:17:02,687 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] [2023-11-23 21:17:02,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5800] [2023-11-23 21:17:02,689 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] [2023-11-23 21:17:02,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5857] [2023-11-23 21:17:02,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5860] [2023-11-23 21:17:02,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5863] [2023-11-23 21:17:02,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5866] [2023-11-23 21:17:02,692 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] [2023-11-23 21:17:02,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5902] [2023-11-23 21:17:02,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [5961] [2023-11-23 21:17:02,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [5964] [2023-11-23 21:17:02,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (val)); [5966] [2023-11-23 21:17:02,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [5971] [2023-11-23 21:17:02,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [5974] [2023-11-23 21:17:02,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [5976] [2023-11-23 21:17:02,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [5981] [2023-11-23 21:17:02,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [5984] [2023-11-23 21:17:02,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [5986] [2023-11-23 21:17:02,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [5991] [2023-11-23 21:17:02,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [5994] [2023-11-23 21:17:02,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (val)); [5996] [2023-11-23 21:17:02,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [6034] [2023-11-23 21:17:02,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [6037] [2023-11-23 21:17:02,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (- val)); [6039] [2023-11-23 21:17:02,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [6044] [2023-11-23 21:17:02,702 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [6047] [2023-11-23 21:17:02,702 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [6049] [2023-11-23 21:17:02,702 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [6054] [2023-11-23 21:17:02,703 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [6057] [2023-11-23 21:17:02,703 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [6059] [2023-11-23 21:17:02,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [6064] [2023-11-23 21:17:02,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [6067] [2023-11-23 21:17:02,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (- val)); [6069] [2023-11-23 21:17:02,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6138] [2023-11-23 21:17:02,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6147] [2023-11-23 21:17:02,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6407] [2023-11-23 21:17:02,739 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] [2023-11-23 21:17:02,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (cpu_number)); [6973] [2023-11-23 21:17:02,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6976] [2023-11-23 21:17:02,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6979] [2023-11-23 21:17:02,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6982] [2023-11-23 21:17:02,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____0): "m" (cpu_number)); [7013] [2023-11-23 21:17:02,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [7016] [2023-11-23 21:17:02,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [7019] [2023-11-23 21:17:02,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [7022] [2023-11-23 21:17:02,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____1): "m" (cpu_number)); [7053] [2023-11-23 21:17:02,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [7056] [2023-11-23 21:17:02,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [7059] [2023-11-23 21:17:02,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [7062] [2023-11-23 21:17:02,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____2): "m" (cpu_number)); [7093] [2023-11-23 21:17:02,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [7096] [2023-11-23 21:17:02,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [7099] [2023-11-23 21:17:02,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [7102] [2023-11-23 21:17:02,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7394] [2023-11-23 21:17:02,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7397] [2023-11-23 21:17:02,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7400] [2023-11-23 21:17:02,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7403] [2023-11-23 21:17:02,763 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7434] [2023-11-23 21:17:02,763 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7437] [2023-11-23 21:17:02,763 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7440] [2023-11-23 21:17:02,763 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7443] [2023-11-23 21:17:02,764 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7474] [2023-11-23 21:17:02,764 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7477] [2023-11-23 21:17:02,764 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7480] [2023-11-23 21:17:02,765 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7483] [2023-11-23 21:17:02,765 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7514] [2023-11-23 21:17:02,765 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7517] [2023-11-23 21:17:02,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7520] [2023-11-23 21:17:02,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7523] [2023-11-23 21:17:02,768 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7592] [2023-11-23 21:17:02,768 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7595] [2023-11-23 21:17:02,768 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7598] [2023-11-23 21:17:02,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7601] [2023-11-23 21:17:02,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7632] [2023-11-23 21:17:02,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7635] [2023-11-23 21:17:02,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7638] [2023-11-23 21:17:02,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7641] [2023-11-23 21:17:02,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7672] [2023-11-23 21:17:02,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7675] [2023-11-23 21:17:02,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7678] [2023-11-23 21:17:02,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7681] [2023-11-23 21:17:02,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7712] [2023-11-23 21:17:02,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7715] [2023-11-23 21:17:02,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7718] [2023-11-23 21:17:02,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7721] [2023-11-23 21:17:02,832 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] [2023-11-23 21:17:02,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8635] [2023-11-23 21:17:02,833 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8657] [2023-11-23 21:17:02,844 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] [2023-11-23 21:17:02,846 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] [2023-11-23 21:17:02,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8786] [2023-11-23 21:17:02,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8802] [2023-11-23 21:17:02,868 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] [2023-11-23 21:17:02,871 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] [2023-11-23 21:17:02,974 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8954] [2023-11-23 21:17:02,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8956] [2023-11-23 21:17:02,994 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9106] [2023-11-23 21:17:02,996 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9154] [2023-11-23 21:17:03,000 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] [2023-11-23 21:17:03,052 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] [2023-11-23 21:17:03,115 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] [2023-11-23 21:17:03,115 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] [2023-11-23 21:17:03,115 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] [2023-11-23 21:17:03,116 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] [2023-11-23 21:17:03,116 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] [2023-11-23 21:17:03,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [11769] [2023-11-23 21:17:03,141 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [11775] [2023-11-23 21:17:03,271 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2023-11-23 21:17:03,273 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2023-11-23 21:17:03,274 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2023-11-23 21:17:03,275 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2023-11-23 21:17:03,289 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:17:03,692 WARN L675 CHandler]: The function __bad_size_call_parameter is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:17:03,693 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:17:03,693 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:17:03,701 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:17:03,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:03 WrapperNode [2023-11-23 21:17:03,702 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:17:03,703 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:17:03,703 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:17:03,703 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:17:03,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:03" (1/1) ... [2023-11-23 21:17:03,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:03" (1/1) ... [2023-11-23 21:17:04,109 INFO L138 Inliner]: procedures = 614, calls = 2637, calls flagged for inlining = 324, calls inlined = 257, statements flattened = 7980 [2023-11-23 21:17:04,109 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:17:04,111 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:17:04,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:17:04,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:17:04,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:03" (1/1) ... [2023-11-23 21:17:04,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:03" (1/1) ... [2023-11-23 21:17:04,180 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:03" (1/1) ... [2023-11-23 21:17:04,181 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:03" (1/1) ... [2023-11-23 21:17:04,327 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:03" (1/1) ... [2023-11-23 21:17:04,368 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:03" (1/1) ... [2023-11-23 21:17:04,580 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:03" (1/1) ... [2023-11-23 21:17:04,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:03" (1/1) ... [2023-11-23 21:17:04,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:17:04,661 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:17:04,661 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:17:04,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:17:04,662 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:03" (1/1) ... [2023-11-23 21:17:04,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:17:04,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:17:04,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:17:04,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4902aabe-bf8a-41d1-a0ee-2b8822bf3af6/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:17:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get [2023-11-23 21:17:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get [2023-11-23 21:17:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-23 21:17:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-23 21:17:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:17:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:17:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:17:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:17:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get_hash [2023-11-23 21:17:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get_hash [2023-11-23 21:17:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure tun_attach [2023-11-23 21:17:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_attach [2023-11-23 21:17:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure ns_capable [2023-11-23 21:17:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_capable [2023-11-23 21:17:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-11-23 21:17:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-11-23 21:17:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:17:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:17:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:17:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure gid_valid [2023-11-23 21:17:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_valid [2023-11-23 21:17:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-11-23 21:17:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-11-23 21:17:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-23 21:17:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-23 21:17:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:17:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:17:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:17:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure sock_writeable [2023-11-23 21:17:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_writeable [2023-11-23 21:17:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:17:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:17:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure iov_length [2023-11-23 21:17:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_length [2023-11-23 21:17:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:17:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:17:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2023-11-23 21:17:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2023-11-23 21:17:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:17:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-23 21:17:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-23 21:17:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get_iff [2023-11-23 21:17:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get_iff [2023-11-23 21:17:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:17:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_76 [2023-11-23 21:17:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_76 [2023-11-23 21:17:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:17:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:17:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_detach [2023-11-23 21:17:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_detach [2023-11-23 21:17:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:17:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:17:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:17:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tun_cleanup_15_2 [2023-11-23 21:17:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tun_cleanup_15_2 [2023-11-23 21:17:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure tun_detach_all [2023-11-23 21:17:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_detach_all [2023-11-23 21:17:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2023-11-23 21:17:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2023-11-23 21:17:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2023-11-23 21:17:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2023-11-23 21:17:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 21:17:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 21:17:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2023-11-23 21:17:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2023-11-23 21:17:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 21:17:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 21:17:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:17:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 21:17:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 21:17:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-23 21:17:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-23 21:17:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-23 21:17:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-23 21:17:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:17:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:17:04,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:17:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:17:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:17:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure read_pnet [2023-11-23 21:17:04,771 INFO L138 BoogieDeclarations]: Found implementation of procedure read_pnet [2023-11-23 21:17:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-23 21:17:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-23 21:17:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 21:17:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 21:17:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure tun_setup [2023-11-23 21:17:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_setup [2023-11-23 21:17:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_transport_header [2023-11-23 21:17:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_transport_header [2023-11-23 21:17:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:17:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:17:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 21:17:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 21:17:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_find [2023-11-23 21:17:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_find [2023-11-23 21:17:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_uninit [2023-11-23 21:17:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_uninit [2023-11-23 21:17:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 21:17:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 21:17:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_net [2023-11-23 21:17:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_net [2023-11-23 21:17:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:17:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:17:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toiovecend [2023-11-23 21:17:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend [2023-11-23 21:17:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-23 21:17:04,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-23 21:17:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flags [2023-11-23 21:17:04,775 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flags [2023-11-23 21:17:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2023-11-23 21:17:04,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2023-11-23 21:17:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:17:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure uid_valid [2023-11-23 21:17:04,776 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_valid [2023-11-23 21:17:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:17:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:17:04,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:17:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:17:04,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:17:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 21:17:04,777 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 21:17:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2023-11-23 21:17:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-23 21:17:04,778 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-23 21:17:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rtnl_is_held [2023-11-23 21:17:04,778 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rtnl_is_held [2023-11-23 21:17:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-23 21:17:04,778 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-23 21:17:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2023-11-23 21:17:04,778 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2023-11-23 21:17:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:17:04,779 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:17:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_get [2023-11-23 21:17:04,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_get [2023-11-23 21:17:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-23 21:17:04,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-23 21:17:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure sk_attach_filter [2023-11-23 21:17:04,779 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_attach_filter [2023-11-23 21:17:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:17:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:17:04,780 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:17:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-11-23 21:17:04,780 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-11-23 21:17:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure put_net [2023-11-23 21:17:04,780 INFO L138 BoogieDeclarations]: Found implementation of procedure put_net [2023-11-23 21:17:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:17:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_const_iovec [2023-11-23 21:17:04,781 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_const_iovec [2023-11-23 21:17:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:17:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-23 21:17:04,781 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-23 21:17:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:17:04,781 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:17:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get_user [2023-11-23 21:17:04,782 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get_user [2023-11-23 21:17:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-11-23 21:17:04,783 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-11-23 21:17:04,787 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_chr_ioctl [2023-11-23 21:17:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_chr_ioctl [2023-11-23 21:17:04,787 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:17:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:17:04,787 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_delete [2023-11-23 21:17:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_delete [2023-11-23 21:17:04,787 INFO L130 BoogieDeclarations]: Found specification of procedure sock_rps_reset_flow_hash [2023-11-23 21:17:04,788 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_rps_reset_flow_hash [2023-11-23 21:17:04,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:17:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:17:04,789 INFO L130 BoogieDeclarations]: Found specification of procedure tun_queue_purge [2023-11-23 21:17:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_queue_purge [2023-11-23 21:17:04,789 INFO L130 BoogieDeclarations]: Found specification of procedure tun_hashfn [2023-11-23 21:17:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_hashfn [2023-11-23 21:17:04,789 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-23 21:17:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-23 21:17:04,789 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:17:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:17:04,790 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:17:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:17:04,790 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2023-11-23 21:17:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2023-11-23 21:17:04,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_75 [2023-11-23 21:17:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_75 [2023-11-23 21:17:04,790 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:17:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:17:04,791 INFO L130 BoogieDeclarations]: Found specification of procedure tun_enable_queue [2023-11-23 21:17:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_enable_queue [2023-11-23 21:17:04,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:17:04,791 INFO L130 BoogieDeclarations]: Found specification of procedure security_tun_dev_free_security [2023-11-23 21:17:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure security_tun_dev_free_security [2023-11-23 21:17:04,791 INFO L130 BoogieDeclarations]: Found specification of procedure hold_net [2023-11-23 21:17:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure hold_net [2023-11-23 21:17:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure tun_set_real_num_queues [2023-11-23 21:17:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_set_real_num_queues [2023-11-23 21:17:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:17:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:17:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2023-11-23 21:17:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2023-11-23 21:17:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_link_unregister [2023-11-23 21:17:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_link_unregister [2023-11-23 21:17:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure tun_do_read [2023-11-23 21:17:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_do_read [2023-11-23 21:17:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-23 21:17:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-23 21:17:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2023-11-23 21:17:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2023-11-23 21:17:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-23 21:17:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-23 21:17:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2023-11-23 21:17:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2023-11-23 21:17:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-23 21:17:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-23 21:17:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-11-23 21:17:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-11-23 21:17:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-23 21:17:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-23 21:17:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 21:17:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 21:17:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-23 21:17:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-23 21:17:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure tun_detach_filter [2023-11-23 21:17:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_detach_filter [2023-11-23 21:17:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromiovecend [2023-11-23 21:17:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromiovecend [2023-11-23 21:17:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_up [2023-11-23 21:17:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_up [2023-11-23 21:17:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:17:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:17:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2023-11-23 21:17:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2023-11-23 21:17:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure tun_put [2023-11-23 21:17:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_put [2023-11-23 21:17:04,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:17:04,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 21:17:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 21:17:05,845 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:17:05,854 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:17:06,447 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:17:11,317 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 21:17:11,430 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:17:15,441 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:17:15,442 INFO L309 CfgBuilder]: Removed 20 assume(true) statements. [2023-11-23 21:17:15,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:15 BoogieIcfgContainer [2023-11-23 21:17:15,444 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:17:15,447 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:17:15,447 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:17:15,450 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:17:15,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:57" (1/3) ... [2023-11-23 21:17:15,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d1e5d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:15, skipping insertion in model container [2023-11-23 21:17:15,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:03" (2/3) ... [2023-11-23 21:17:15,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d1e5d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:15, skipping insertion in model container [2023-11-23 21:17:15,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:15" (3/3) ... [2023-11-23 21:17:15,454 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2023-11-23 21:17:15,474 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:17:15,474 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-23 21:17:15,579 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:17:15,591 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@26dcf01a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:17:15,591 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-23 21:17:15,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 1558 states, 960 states have (on average 1.3614583333333334) internal successors, (1307), 996 states have internal predecessors, (1307), 489 states have call successors, (489), 107 states have call predecessors, (489), 106 states have return successors, (482), 481 states have call predecessors, (482), 482 states have call successors, (482) [2023-11-23 21:17:15,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-11-23 21:17:15,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:15,655 INFO L195 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] [2023-11-23 21:17:15,655 INFO L420 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)] === [2023-11-23 21:17:15,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:15,664 INFO L85 PathProgramCache]: Analyzing trace with hash 789830664, now seen corresponding path program 1 times [2023-11-23 21:17:15,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:15,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637536449] [2023-11-23 21:17:15,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:15,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:16,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2862 trivial. 0 not checked. [2023-11-23 21:17:16,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:16,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637536449] [2023-11-23 21:17:16,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637536449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:16,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:16,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:17:16,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209262055] [2023-11-23 21:17:16,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:16,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:17:16,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:16,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:17:16,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:17,003 INFO L87 Difference]: Start difference. First operand has 1558 states, 960 states have (on average 1.3614583333333334) internal successors, (1307), 996 states have internal predecessors, (1307), 489 states have call successors, (489), 107 states have call predecessors, (489), 106 states have return successors, (482), 481 states have call predecessors, (482), 482 states have call successors, (482) 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) [2023-11-23 21:17:20,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:24,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:26,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:27,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:27,083 INFO L93 Difference]: Finished difference Result 4514 states and 6687 transitions. [2023-11-23 21:17:27,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:17:27,086 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 [2023-11-23 21:17:27,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:27,142 INFO L225 Difference]: With dead ends: 4514 [2023-11-23 21:17:27,142 INFO L226 Difference]: Without dead ends: 2995 [2023-11-23 21:17:27,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:27,170 INFO L413 NwaCegarLoop]: 2023 mSDtfsCounter, 2146 mSDsluCounter, 1871 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2146 SdHoareTripleChecker+Valid, 3894 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:27,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2146 Valid, 3894 Invalid, 777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 772 Invalid, 3 Unknown, 0 Unchecked, 9.5s Time] [2023-11-23 21:17:27,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2023-11-23 21:17:27,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2965. [2023-11-23 21:17:27,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 1846 states have (on average 1.3613217768147345) internal successors, (2513), 1921 states have internal predecessors, (2513), 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) [2023-11-23 21:17:27,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 4335 transitions. [2023-11-23 21:17:27,592 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 4335 transitions. Word has length 291 [2023-11-23 21:17:27,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:27,598 INFO L495 AbstractCegarLoop]: Abstraction has 2965 states and 4335 transitions. [2023-11-23 21:17:27,599 INFO L496 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) [2023-11-23 21:17:27,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 4335 transitions. [2023-11-23 21:17:27,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2023-11-23 21:17:27,613 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:27,614 INFO L195 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] [2023-11-23 21:17:27,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:17:27,614 INFO L420 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)] === [2023-11-23 21:17:27,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:27,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1201612500, now seen corresponding path program 1 times [2023-11-23 21:17:27,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:27,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664842876] [2023-11-23 21:17:27,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:27,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:28,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2862 trivial. 0 not checked. [2023-11-23 21:17:28,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:28,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664842876] [2023-11-23 21:17:28,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664842876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:28,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:28,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:17:28,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136421788] [2023-11-23 21:17:28,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:28,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:17:28,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:28,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:17:28,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:28,403 INFO L87 Difference]: Start difference. First operand 2965 states and 4335 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) [2023-11-23 21:17:32,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:36,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:37,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:37,929 INFO L93 Difference]: Finished difference Result 8657 states and 12646 transitions. [2023-11-23 21:17:37,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:17:37,930 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 [2023-11-23 21:17:37,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:37,993 INFO L225 Difference]: With dead ends: 8657 [2023-11-23 21:17:37,994 INFO L226 Difference]: Without dead ends: 5747 [2023-11-23 21:17:38,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:38,021 INFO L413 NwaCegarLoop]: 1876 mSDtfsCounter, 2075 mSDsluCounter, 1814 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2075 SdHoareTripleChecker+Valid, 3690 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:38,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2075 Valid, 3690 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 781 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2023-11-23 21:17:38,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5747 states. [2023-11-23 21:17:38,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5747 to 5743. [2023-11-23 21:17:38,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5743 states, 3606 states have (on average 1.363006100942873) internal successors, (4915), 3746 states have internal predecessors, (4915), 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) [2023-11-23 21:17:38,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5743 states to 5743 states and 8373 transitions. [2023-11-23 21:17:38,462 INFO L78 Accepts]: Start accepts. Automaton has 5743 states and 8373 transitions. Word has length 293 [2023-11-23 21:17:38,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:38,468 INFO L495 AbstractCegarLoop]: Abstraction has 5743 states and 8373 transitions. [2023-11-23 21:17:38,470 INFO L496 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) [2023-11-23 21:17:38,470 INFO L276 IsEmpty]: Start isEmpty. Operand 5743 states and 8373 transitions. [2023-11-23 21:17:38,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2023-11-23 21:17:38,482 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:38,482 INFO L195 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] [2023-11-23 21:17:38,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:17:38,483 INFO L420 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)] === [2023-11-23 21:17:38,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:38,490 INFO L85 PathProgramCache]: Analyzing trace with hash 353478996, now seen corresponding path program 1 times [2023-11-23 21:17:38,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:38,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010528744] [2023-11-23 21:17:38,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:38,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:38,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:39,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2864 trivial. 0 not checked. [2023-11-23 21:17:39,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:39,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010528744] [2023-11-23 21:17:39,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010528744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:39,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:39,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:17:39,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018857830] [2023-11-23 21:17:39,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:39,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:17:39,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:39,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:17:39,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:39,292 INFO L87 Difference]: Start difference. First operand 5743 states and 8373 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) [2023-11-23 21:17:42,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []