./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 0e0057cc 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_dd0a96d9-e081-430e-ad28-e85628437ddb/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0a96d9-e081-430e-ad28-e85628437ddb/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0a96d9-e081-430e-ad28-e85628437ddb/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0a96d9-e081-430e-ad28-e85628437ddb/bin/utaipan-verify-SwPr7d2a91/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_dd0a96d9-e081-430e-ad28-e85628437ddb/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0a96d9-e081-430e-ad28-e85628437ddb/bin/utaipan-verify-SwPr7d2a91 --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 0.2.4-dev-0e0057c [2023-11-25 00:10:14,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:10:14,577 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0a96d9-e081-430e-ad28-e85628437ddb/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:10:14,584 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:10:14,584 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:10:14,611 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:10:14,612 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:10:14,612 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:10:14,613 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:10:14,614 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:10:14,615 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:10:14,615 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:10:14,616 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:10:14,616 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:10:14,617 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:10:14,618 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:10:14,618 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:10:14,619 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:10:14,619 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:10:14,620 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:10:14,621 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:10:14,624 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:10:14,625 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:10:14,625 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:10:14,626 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:10:14,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:10:14,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:10:14,627 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:10:14,627 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:10:14,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:10:14,628 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:10:14,629 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:10:14,629 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:10:14,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:10:14,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:10:14,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:10:14,631 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:10:14,631 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:10:14,632 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:10:14,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:10:14,632 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:10:14,634 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:10:14,635 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:10:14,635 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:10:14,635 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_dd0a96d9-e081-430e-ad28-e85628437ddb/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0a96d9-e081-430e-ad28-e85628437ddb/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 [2023-11-25 00:10:15,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:10:15,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:10:15,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:10:15,040 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:10:15,041 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:10:15,042 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0a96d9-e081-430e-ad28-e85628437ddb/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2023-11-25 00:10:18,276 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:10:19,056 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:10:19,057 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0a96d9-e081-430e-ad28-e85628437ddb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2023-11-25 00:10:19,124 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0a96d9-e081-430e-ad28-e85628437ddb/bin/utaipan-verify-SwPr7d2a91/data/83bc9f877/2f63f821cf1949c2a4f17fda3478fc01/FLAGcca37398f [2023-11-25 00:10:19,144 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0a96d9-e081-430e-ad28-e85628437ddb/bin/utaipan-verify-SwPr7d2a91/data/83bc9f877/2f63f821cf1949c2a4f17fda3478fc01 [2023-11-25 00:10:19,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:10:19,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:10:19,158 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:10:19,158 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:10:19,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:10:19,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:10:19" (1/1) ... [2023-11-25 00:10:19,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76422c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:19, skipping insertion in model container [2023-11-25 00:10:19,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:10:19" (1/1) ... [2023-11-25 00:10:19,372 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:10:24,219 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_dd0a96d9-e081-430e-ad28-e85628437ddb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2023-11-25 00:10:24,224 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_dd0a96d9-e081-430e-ad28-e85628437ddb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2023-11-25 00:10:24,226 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_dd0a96d9-e081-430e-ad28-e85628437ddb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2023-11-25 00:10:24,227 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_dd0a96d9-e081-430e-ad28-e85628437ddb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2023-11-25 00:10:24,281 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:10:24,418 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:10:24,569 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] [2023-11-25 00:10:24,571 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5786] [2023-11-25 00:10:24,571 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] [2023-11-25 00:10:24,572 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5800] [2023-11-25 00:10:24,574 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] [2023-11-25 00:10:24,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5857] [2023-11-25 00:10:24,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5860] [2023-11-25 00:10:24,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5863] [2023-11-25 00:10:24,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5866] [2023-11-25 00:10:24,578 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] [2023-11-25 00:10:24,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5902] [2023-11-25 00:10:24,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [5961] [2023-11-25 00:10:24,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [5964] [2023-11-25 00:10:24,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (val)); [5966] [2023-11-25 00:10:24,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [5971] [2023-11-25 00:10:24,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [5974] [2023-11-25 00:10:24,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [5976] [2023-11-25 00:10:24,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [5981] [2023-11-25 00:10:24,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [5984] [2023-11-25 00:10:24,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [5986] [2023-11-25 00:10:24,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [5991] [2023-11-25 00:10:24,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [5994] [2023-11-25 00:10:24,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (val)); [5996] [2023-11-25 00:10:24,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [6034] [2023-11-25 00:10:24,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [6037] [2023-11-25 00:10:24,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (- val)); [6039] [2023-11-25 00:10:24,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [6044] [2023-11-25 00:10:24,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [6047] [2023-11-25 00:10:24,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [6049] [2023-11-25 00:10:24,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [6054] [2023-11-25 00:10:24,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [6057] [2023-11-25 00:10:24,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [6059] [2023-11-25 00:10:24,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [6064] [2023-11-25 00:10:24,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [6067] [2023-11-25 00:10:24,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (- val)); [6069] [2023-11-25 00:10:24,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6138] [2023-11-25 00:10:24,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6147] [2023-11-25 00:10:24,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6407] [2023-11-25 00:10:24,641 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] [2023-11-25 00:10:24,650 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (cpu_number)); [6973] [2023-11-25 00:10:24,651 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6976] [2023-11-25 00:10:24,651 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6979] [2023-11-25 00:10:24,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6982] [2023-11-25 00:10:24,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____0): "m" (cpu_number)); [7013] [2023-11-25 00:10:24,653 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [7016] [2023-11-25 00:10:24,653 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [7019] [2023-11-25 00:10:24,654 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [7022] [2023-11-25 00:10:24,654 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____1): "m" (cpu_number)); [7053] [2023-11-25 00:10:24,655 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [7056] [2023-11-25 00:10:24,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [7059] [2023-11-25 00:10:24,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [7062] [2023-11-25 00:10:24,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____2): "m" (cpu_number)); [7093] [2023-11-25 00:10:24,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [7096] [2023-11-25 00:10:24,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [7099] [2023-11-25 00:10:24,659 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [7102] [2023-11-25 00:10:24,666 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7394] [2023-11-25 00:10:24,667 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7397] [2023-11-25 00:10:24,667 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7400] [2023-11-25 00:10:24,668 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7403] [2023-11-25 00:10:24,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7434] [2023-11-25 00:10:24,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7437] [2023-11-25 00:10:24,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7440] [2023-11-25 00:10:24,670 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7443] [2023-11-25 00:10:24,670 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7474] [2023-11-25 00:10:24,671 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7477] [2023-11-25 00:10:24,671 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7480] [2023-11-25 00:10:24,671 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7483] [2023-11-25 00:10:24,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7514] [2023-11-25 00:10:24,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7517] [2023-11-25 00:10:24,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7520] [2023-11-25 00:10:24,673 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7523] [2023-11-25 00:10:24,674 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7592] [2023-11-25 00:10:24,674 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7595] [2023-11-25 00:10:24,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7598] [2023-11-25 00:10:24,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7601] [2023-11-25 00:10:24,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7632] [2023-11-25 00:10:24,676 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7635] [2023-11-25 00:10:24,676 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7638] [2023-11-25 00:10:24,676 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7641] [2023-11-25 00:10:24,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7672] [2023-11-25 00:10:24,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7675] [2023-11-25 00:10:24,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7678] [2023-11-25 00:10:24,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7681] [2023-11-25 00:10:24,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7712] [2023-11-25 00:10:24,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7715] [2023-11-25 00:10:24,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7718] [2023-11-25 00:10:24,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7721] [2023-11-25 00:10:24,741 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] [2023-11-25 00:10:24,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8635] [2023-11-25 00:10:24,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8657] [2023-11-25 00:10:24,755 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] [2023-11-25 00:10:24,757 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] [2023-11-25 00:10:24,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8786] [2023-11-25 00:10:24,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8802] [2023-11-25 00:10:24,865 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] [2023-11-25 00:10:24,867 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] [2023-11-25 00:10:24,880 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8954] [2023-11-25 00:10:24,892 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8956] [2023-11-25 00:10:24,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9106] [2023-11-25 00:10:24,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9154] [2023-11-25 00:10:24,914 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] [2023-11-25 00:10:24,982 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] [2023-11-25 00:10:25,059 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] [2023-11-25 00:10:25,060 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] [2023-11-25 00:10:25,061 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] [2023-11-25 00:10:25,061 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] [2023-11-25 00:10:25,061 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] [2023-11-25 00:10:25,078 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [11769] [2023-11-25 00:10:25,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [11775] [2023-11-25 00:10:25,230 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_dd0a96d9-e081-430e-ad28-e85628437ddb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2023-11-25 00:10:25,233 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_dd0a96d9-e081-430e-ad28-e85628437ddb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2023-11-25 00:10:25,234 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_dd0a96d9-e081-430e-ad28-e85628437ddb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2023-11-25 00:10:25,234 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_dd0a96d9-e081-430e-ad28-e85628437ddb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2023-11-25 00:10:25,250 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:10:25,668 WARN L675 CHandler]: The function __bad_size_call_parameter is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:10:25,668 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:10:25,668 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:10:25,677 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:10:25,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:25 WrapperNode [2023-11-25 00:10:25,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:10:25,680 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:10:25,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:10:25,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:10:25,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:25" (1/1) ... [2023-11-25 00:10:25,861 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:25" (1/1) ... [2023-11-25 00:10:26,202 INFO L138 Inliner]: procedures = 614, calls = 2637, calls flagged for inlining = 324, calls inlined = 257, statements flattened = 8056 [2023-11-25 00:10:26,204 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:10:26,205 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:10:26,205 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:10:26,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:10:26,217 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:25" (1/1) ... [2023-11-25 00:10:26,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:25" (1/1) ... [2023-11-25 00:10:26,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:25" (1/1) ... [2023-11-25 00:10:26,276 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:25" (1/1) ... [2023-11-25 00:10:26,541 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:25" (1/1) ... [2023-11-25 00:10:26,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:25" (1/1) ... [2023-11-25 00:10:26,623 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:25" (1/1) ... [2023-11-25 00:10:26,644 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:25" (1/1) ... [2023-11-25 00:10:26,691 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:10:26,692 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:10:26,692 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:10:26,692 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:10:26,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:25" (1/1) ... [2023-11-25 00:10:26,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:10:26,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0a96d9-e081-430e-ad28-e85628437ddb/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:10:26,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0a96d9-e081-430e-ad28-e85628437ddb/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:10:26,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0a96d9-e081-430e-ad28-e85628437ddb/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:10:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get [2023-11-25 00:10:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get [2023-11-25 00:10:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-25 00:10:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-25 00:10:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-25 00:10:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-25 00:10:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-25 00:10:26,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-25 00:10:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get_hash [2023-11-25 00:10:26,792 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get_hash [2023-11-25 00:10:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure tun_attach [2023-11-25 00:10:26,793 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_attach [2023-11-25 00:10:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure ns_capable [2023-11-25 00:10:26,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_capable [2023-11-25 00:10:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-11-25 00:10:26,794 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-11-25 00:10:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-25 00:10:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-25 00:10:26,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-25 00:10:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure gid_valid [2023-11-25 00:10:26,796 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_valid [2023-11-25 00:10:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-11-25 00:10:26,796 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-11-25 00:10:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-25 00:10:26,796 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-25 00:10:26,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-25 00:10:26,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-25 00:10:26,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:10:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure sock_writeable [2023-11-25 00:10:26,799 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_writeable [2023-11-25 00:10:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-25 00:10:26,803 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-25 00:10:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure iov_length [2023-11-25 00:10:26,803 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_length [2023-11-25 00:10:26,804 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-25 00:10:26,804 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-25 00:10:26,805 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2023-11-25 00:10:26,805 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2023-11-25 00:10:26,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-25 00:10:26,811 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-25 00:10:26,812 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-25 00:10:26,812 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get_iff [2023-11-25 00:10:26,812 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get_iff [2023-11-25 00:10:26,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-25 00:10:26,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_76 [2023-11-25 00:10:26,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_76 [2023-11-25 00:10:26,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-25 00:10:26,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-25 00:10:26,813 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_detach [2023-11-25 00:10:26,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_detach [2023-11-25 00:10:26,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:10:26,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-25 00:10:26,814 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-25 00:10:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tun_cleanup_15_2 [2023-11-25 00:10:26,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tun_cleanup_15_2 [2023-11-25 00:10:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure tun_detach_all [2023-11-25 00:10:26,814 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_detach_all [2023-11-25 00:10:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2023-11-25 00:10:26,815 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2023-11-25 00:10:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2023-11-25 00:10:26,815 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2023-11-25 00:10:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-25 00:10:26,816 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-25 00:10:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2023-11-25 00:10:26,816 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2023-11-25 00:10:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-25 00:10:26,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-25 00:10:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:10:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-25 00:10:26,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-25 00:10:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-25 00:10:26,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-25 00:10:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-25 00:10:26,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-25 00:10:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:10:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-25 00:10:26,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-25 00:10:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:10:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-25 00:10:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure read_pnet [2023-11-25 00:10:26,818 INFO L138 BoogieDeclarations]: Found implementation of procedure read_pnet [2023-11-25 00:10:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-25 00:10:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-25 00:10:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-25 00:10:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-25 00:10:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure tun_setup [2023-11-25 00:10:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_setup [2023-11-25 00:10:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_transport_header [2023-11-25 00:10:26,820 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_transport_header [2023-11-25 00:10:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-25 00:10:26,820 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-25 00:10:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-25 00:10:26,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-25 00:10:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_find [2023-11-25 00:10:26,821 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_find [2023-11-25 00:10:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_uninit [2023-11-25 00:10:26,821 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_uninit [2023-11-25 00:10:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-25 00:10:26,821 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-25 00:10:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_net [2023-11-25 00:10:26,821 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_net [2023-11-25 00:10:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:10:26,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:10:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toiovecend [2023-11-25 00:10:26,822 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend [2023-11-25 00:10:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-25 00:10:26,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-25 00:10:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flags [2023-11-25 00:10:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flags [2023-11-25 00:10:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2023-11-25 00:10:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2023-11-25 00:10:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-25 00:10:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure uid_valid [2023-11-25 00:10:26,828 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_valid [2023-11-25 00:10:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-25 00:10:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-25 00:10:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-25 00:10:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-25 00:10:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-25 00:10:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-25 00:10:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-25 00:10:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2023-11-25 00:10:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-25 00:10:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-25 00:10:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rtnl_is_held [2023-11-25 00:10:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rtnl_is_held [2023-11-25 00:10:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-25 00:10:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-25 00:10:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2023-11-25 00:10:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2023-11-25 00:10:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-25 00:10:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-25 00:10:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_get [2023-11-25 00:10:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_get [2023-11-25 00:10:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-25 00:10:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-25 00:10:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure sk_attach_filter [2023-11-25 00:10:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_attach_filter [2023-11-25 00:10:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:10:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-25 00:10:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-25 00:10:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-11-25 00:10:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-11-25 00:10:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure put_net [2023-11-25 00:10:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure put_net [2023-11-25 00:10:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:10:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_const_iovec [2023-11-25 00:10:26,834 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_const_iovec [2023-11-25 00:10:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:10:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-25 00:10:26,834 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-25 00:10:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-25 00:10:26,834 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-25 00:10:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get_user [2023-11-25 00:10:26,835 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get_user [2023-11-25 00:10:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-11-25 00:10:26,835 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-11-25 00:10:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_chr_ioctl [2023-11-25 00:10:26,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_chr_ioctl [2023-11-25 00:10:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-25 00:10:26,836 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-25 00:10:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_delete [2023-11-25 00:10:26,836 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_delete [2023-11-25 00:10:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure sock_rps_reset_flow_hash [2023-11-25 00:10:26,836 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_rps_reset_flow_hash [2023-11-25 00:10:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-25 00:10:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-25 00:10:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure tun_queue_purge [2023-11-25 00:10:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_queue_purge [2023-11-25 00:10:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure tun_hashfn [2023-11-25 00:10:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_hashfn [2023-11-25 00:10:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-25 00:10:26,838 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-25 00:10:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-25 00:10:26,838 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-25 00:10:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-25 00:10:26,838 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-25 00:10:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2023-11-25 00:10:26,839 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2023-11-25 00:10:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_75 [2023-11-25 00:10:26,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_75 [2023-11-25 00:10:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-25 00:10:26,839 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-25 00:10:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure tun_enable_queue [2023-11-25 00:10:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_enable_queue [2023-11-25 00:10:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:10:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure security_tun_dev_free_security [2023-11-25 00:10:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure security_tun_dev_free_security [2023-11-25 00:10:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure hold_net [2023-11-25 00:10:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure hold_net [2023-11-25 00:10:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure tun_set_real_num_queues [2023-11-25 00:10:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_set_real_num_queues [2023-11-25 00:10:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-25 00:10:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-25 00:10:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2023-11-25 00:10:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2023-11-25 00:10:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_link_unregister [2023-11-25 00:10:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_link_unregister [2023-11-25 00:10:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure tun_do_read [2023-11-25 00:10:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_do_read [2023-11-25 00:10:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-25 00:10:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-25 00:10:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2023-11-25 00:10:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2023-11-25 00:10:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-25 00:10:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-25 00:10:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2023-11-25 00:10:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2023-11-25 00:10:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-25 00:10:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-25 00:10:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-11-25 00:10:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-11-25 00:10:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-25 00:10:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-25 00:10:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-25 00:10:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-25 00:10:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-25 00:10:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-25 00:10:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure tun_detach_filter [2023-11-25 00:10:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_detach_filter [2023-11-25 00:10:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromiovecend [2023-11-25 00:10:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromiovecend [2023-11-25 00:10:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_up [2023-11-25 00:10:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_up [2023-11-25 00:10:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-25 00:10:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-25 00:10:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2023-11-25 00:10:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2023-11-25 00:10:26,847 INFO L130 BoogieDeclarations]: Found specification of procedure tun_put [2023-11-25 00:10:26,847 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_put [2023-11-25 00:10:26,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:10:26,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-25 00:10:26,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-25 00:10:28,050 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:10:28,056 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:10:28,649 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-25 00:10:34,464 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-25 00:10:34,626 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:10:38,728 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:10:38,728 INFO L309 CfgBuilder]: Removed 20 assume(true) statements. [2023-11-25 00:10:38,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:10:38 BoogieIcfgContainer [2023-11-25 00:10:38,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:10:38,734 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:10:38,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:10:38,739 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:10:38,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:10:19" (1/3) ... [2023-11-25 00:10:38,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df095bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:10:38, skipping insertion in model container [2023-11-25 00:10:38,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:25" (2/3) ... [2023-11-25 00:10:38,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df095bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:10:38, skipping insertion in model container [2023-11-25 00:10:38,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:10:38" (3/3) ... [2023-11-25 00:10:38,742 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2023-11-25 00:10:38,768 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:10:38,768 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-25 00:10:38,873 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:10:38,882 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;@6b0e0dd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:10:38,882 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-25 00:10:38,896 INFO L276 IsEmpty]: Start isEmpty. Operand has 1573 states, 975 states have (on average 1.3558974358974358) internal successors, (1322), 996 states have internal predecessors, (1322), 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) [2023-11-25 00:10:38,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-11-25 00:10:38,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:10:38,942 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] [2023-11-25 00:10:38,943 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)] === [2023-11-25 00:10:38,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:10:38,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1248216419, now seen corresponding path program 1 times [2023-11-25 00:10:38,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:10:38,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414821287] [2023-11-25 00:10:38,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:10:38,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:10:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:10:40,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2862 trivial. 0 not checked. [2023-11-25 00:10:40,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:10:40,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414821287] [2023-11-25 00:10:40,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414821287] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:10:40,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:10:40,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:10:40,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876253730] [2023-11-25 00:10:40,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:10:40,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:10:40,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:10:40,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:10:40,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:10:40,581 INFO L87 Difference]: Start difference. First operand has 1573 states, 975 states have (on average 1.3558974358974358) internal successors, (1322), 996 states have internal predecessors, (1322), 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) [2023-11-25 00:10:44,118 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 [] [2023-11-25 00:10:48,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:10:50,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:10:50,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:10:50,548 INFO L93 Difference]: Finished difference Result 4559 states and 6732 transitions. [2023-11-25 00:10:50,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:10:50,551 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 [2023-11-25 00:10:50,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:10:50,625 INFO L225 Difference]: With dead ends: 4559 [2023-11-25 00:10:50,625 INFO L226 Difference]: Without dead ends: 3025 [2023-11-25 00:10:50,642 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 [2023-11-25 00:10:50,646 INFO L413 NwaCegarLoop]: 2040 mSDtfsCounter, 2161 mSDsluCounter, 1886 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 3926 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-11-25 00:10:50,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2161 Valid, 3926 Invalid, 777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 773 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time] [2023-11-25 00:10:50,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2023-11-25 00:10:50,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 2995. [2023-11-25 00:10:50,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2995 states, 1876 states have (on average 1.355543710021322) internal successors, (2543), 1921 states have internal predecessors, (2543), 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) [2023-11-25 00:10:50,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 4365 transitions. [2023-11-25 00:10:50,986 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 4365 transitions. Word has length 291 [2023-11-25 00:10:50,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:10:50,992 INFO L495 AbstractCegarLoop]: Abstraction has 2995 states and 4365 transitions. [2023-11-25 00:10:50,993 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) [2023-11-25 00:10:50,993 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 4365 transitions. [2023-11-25 00:10:51,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2023-11-25 00:10:51,008 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:10:51,009 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] [2023-11-25 00:10:51,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:10:51,010 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)] === [2023-11-25 00:10:51,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:10:51,011 INFO L85 PathProgramCache]: Analyzing trace with hash 139435756, now seen corresponding path program 1 times [2023-11-25 00:10:51,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:10:51,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634784190] [2023-11-25 00:10:51,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:10:51,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:10:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:10:51,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2862 trivial. 0 not checked. [2023-11-25 00:10:51,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:10:51,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634784190] [2023-11-25 00:10:51,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634784190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:10:51,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:10:51,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:10:51,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950260072] [2023-11-25 00:10:51,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:10:51,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:10:51,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:10:51,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:10:51,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:10:51,888 INFO L87 Difference]: Start difference. First operand 2995 states and 4365 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) [2023-11-25 00:10:56,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:10:58,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:10:58,964 INFO L93 Difference]: Finished difference Result 8747 states and 12736 transitions. [2023-11-25 00:10:58,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:10:58,965 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 [2023-11-25 00:10:58,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:10:59,024 INFO L225 Difference]: With dead ends: 8747 [2023-11-25 00:10:59,025 INFO L226 Difference]: Without dead ends: 5807 [2023-11-25 00:10:59,047 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 [2023-11-25 00:10:59,054 INFO L413 NwaCegarLoop]: 1891 mSDtfsCounter, 2090 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2090 SdHoareTripleChecker+Valid, 3720 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-25 00:10:59,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2090 Valid, 3720 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-11-25 00:10:59,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5807 states. [2023-11-25 00:10:59,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5807 to 5803. [2023-11-25 00:10:59,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5803 states, 3666 states have (on average 1.357064920894708) internal successors, (4975), 3746 states have internal predecessors, (4975), 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) [2023-11-25 00:10:59,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5803 states to 5803 states and 8433 transitions. [2023-11-25 00:10:59,578 INFO L78 Accepts]: Start accepts. Automaton has 5803 states and 8433 transitions. Word has length 293 [2023-11-25 00:10:59,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:10:59,584 INFO L495 AbstractCegarLoop]: Abstraction has 5803 states and 8433 transitions. [2023-11-25 00:10:59,584 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) [2023-11-25 00:10:59,585 INFO L276 IsEmpty]: Start isEmpty. Operand 5803 states and 8433 transitions. [2023-11-25 00:10:59,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2023-11-25 00:10:59,597 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:10:59,597 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] [2023-11-25 00:10:59,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:10:59,598 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)] === [2023-11-25 00:10:59,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:10:59,598 INFO L85 PathProgramCache]: Analyzing trace with hash 951342661, now seen corresponding path program 1 times [2023-11-25 00:10:59,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:10:59,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194016023] [2023-11-25 00:10:59,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:10:59,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:10:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:00,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2864 trivial. 0 not checked. [2023-11-25 00:11:00,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:11:00,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194016023] [2023-11-25 00:11:00,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194016023] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:00,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:11:00,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:11:00,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874498876] [2023-11-25 00:11:00,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:00,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:11:00,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:11:00,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:11:00,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:11:00,351 INFO L87 Difference]: Start difference. First operand 5803 states and 8433 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)