./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c958af-de1d-432e-bb9a-065638a6e68e/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c958af-de1d-432e-bb9a-065638a6e68e/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c958af-de1d-432e-bb9a-065638a6e68e/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c958af-de1d-432e-bb9a-065638a6e68e/bin/utaipan-verify-t7M7D8N6sZ/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_08c958af-de1d-432e-bb9a-065638a6e68e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c958af-de1d-432e-bb9a-065638a6e68e/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:09:08,984 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:09:09,142 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c958af-de1d-432e-bb9a-065638a6e68e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:09:09,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:09:09,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:09:09,190 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:09:09,191 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:09:09,192 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:09:09,193 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:09:09,194 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:09:09,195 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:09:09,196 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:09:09,196 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:09:09,197 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:09:09,198 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:09:09,199 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:09:09,199 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:09:09,200 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:09:09,201 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:09:09,202 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:09:09,202 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:09:09,203 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:09:09,205 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:09:09,205 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:09:09,206 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:09:09,207 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:09:09,207 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:09:09,208 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:09:09,209 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:09:09,209 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:09:09,210 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:09:09,211 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:09:09,211 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:09:09,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:09:09,212 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:09:09,213 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:09:09,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:09:09,214 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:09:09,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:09:09,215 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:09:09,215 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:09:09,216 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:09:09,216 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_08c958af-de1d-432e-bb9a-065638a6e68e/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c958af-de1d-432e-bb9a-065638a6e68e/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 [2023-11-19 05:09:09,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:09:09,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:09:09,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:09:09,622 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:09:09,623 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:09:09,625 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c958af-de1d-432e-bb9a-065638a6e68e/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2023-11-19 05:09:13,396 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:09:14,322 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:09:14,324 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c958af-de1d-432e-bb9a-065638a6e68e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2023-11-19 05:09:14,410 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c958af-de1d-432e-bb9a-065638a6e68e/bin/utaipan-verify-t7M7D8N6sZ/data/fbfb39e2d/4d6f80abcc564270bc90b87dd1875d1c/FLAG4d827cbea [2023-11-19 05:09:14,433 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c958af-de1d-432e-bb9a-065638a6e68e/bin/utaipan-verify-t7M7D8N6sZ/data/fbfb39e2d/4d6f80abcc564270bc90b87dd1875d1c [2023-11-19 05:09:14,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:09:14,443 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:09:14,446 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:14,446 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:09:14,454 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:09:14,455 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:14" (1/1) ... [2023-11-19 05:09:14,457 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f9d1705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:14, skipping insertion in model container [2023-11-19 05:09:14,457 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:14" (1/1) ... [2023-11-19 05:09:14,724 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:09:20,189 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_08c958af-de1d-432e-bb9a-065638a6e68e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2023-11-19 05:09:20,195 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_08c958af-de1d-432e-bb9a-065638a6e68e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2023-11-19 05:09:20,196 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_08c958af-de1d-432e-bb9a-065638a6e68e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2023-11-19 05:09:20,197 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_08c958af-de1d-432e-bb9a-065638a6e68e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2023-11-19 05:09:20,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:09:20,320 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:09:20,508 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] [2023-11-19 05:09:20,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5786] [2023-11-19 05:09:20,512 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] [2023-11-19 05:09:20,512 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5800] [2023-11-19 05:09:20,515 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] [2023-11-19 05:09:20,517 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5857] [2023-11-19 05:09:20,517 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5860] [2023-11-19 05:09:20,517 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5863] [2023-11-19 05:09:20,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5866] [2023-11-19 05:09:20,519 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] [2023-11-19 05:09:20,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5902] [2023-11-19 05:09:20,522 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [5961] [2023-11-19 05:09:20,522 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [5964] [2023-11-19 05:09:20,524 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (val)); [5966] [2023-11-19 05:09:20,524 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [5971] [2023-11-19 05:09:20,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [5974] [2023-11-19 05:09:20,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [5976] [2023-11-19 05:09:20,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [5981] [2023-11-19 05:09:20,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [5984] [2023-11-19 05:09:20,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [5986] [2023-11-19 05:09:20,527 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [5991] [2023-11-19 05:09:20,527 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [5994] [2023-11-19 05:09:20,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (val)); [5996] [2023-11-19 05:09:20,529 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [6034] [2023-11-19 05:09:20,529 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [6037] [2023-11-19 05:09:20,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (- val)); [6039] [2023-11-19 05:09:20,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [6044] [2023-11-19 05:09:20,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [6047] [2023-11-19 05:09:20,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [6049] [2023-11-19 05:09:20,533 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [6054] [2023-11-19 05:09:20,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [6057] [2023-11-19 05:09:20,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [6059] [2023-11-19 05:09:20,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [6064] [2023-11-19 05:09:20,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [6067] [2023-11-19 05:09:20,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (- val)); [6069] [2023-11-19 05:09:20,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6138] [2023-11-19 05:09:20,538 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6147] [2023-11-19 05:09:20,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6407] [2023-11-19 05:09:20,583 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] [2023-11-19 05:09:20,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (cpu_number)); [6973] [2023-11-19 05:09:20,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6976] [2023-11-19 05:09:20,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6979] [2023-11-19 05:09:20,593 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6982] [2023-11-19 05:09:20,594 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____0): "m" (cpu_number)); [7013] [2023-11-19 05:09:20,594 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [7016] [2023-11-19 05:09:20,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [7019] [2023-11-19 05:09:20,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [7022] [2023-11-19 05:09:20,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____1): "m" (cpu_number)); [7053] [2023-11-19 05:09:20,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [7056] [2023-11-19 05:09:20,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [7059] [2023-11-19 05:09:20,598 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [7062] [2023-11-19 05:09:20,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____2): "m" (cpu_number)); [7093] [2023-11-19 05:09:20,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [7096] [2023-11-19 05:09:20,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [7099] [2023-11-19 05:09:20,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [7102] [2023-11-19 05:09:20,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7394] [2023-11-19 05:09:20,609 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7397] [2023-11-19 05:09:20,609 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7400] [2023-11-19 05:09:20,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7403] [2023-11-19 05:09:20,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7434] [2023-11-19 05:09:20,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7437] [2023-11-19 05:09:20,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7440] [2023-11-19 05:09:20,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7443] [2023-11-19 05:09:20,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7474] [2023-11-19 05:09:20,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7477] [2023-11-19 05:09:20,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7480] [2023-11-19 05:09:20,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7483] [2023-11-19 05:09:20,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7514] [2023-11-19 05:09:20,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7517] [2023-11-19 05:09:20,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7520] [2023-11-19 05:09:20,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7523] [2023-11-19 05:09:20,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7592] [2023-11-19 05:09:20,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7595] [2023-11-19 05:09:20,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7598] [2023-11-19 05:09:20,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7601] [2023-11-19 05:09:20,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7632] [2023-11-19 05:09:20,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7635] [2023-11-19 05:09:20,621 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7638] [2023-11-19 05:09:20,621 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7641] [2023-11-19 05:09:20,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7672] [2023-11-19 05:09:20,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7675] [2023-11-19 05:09:20,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7678] [2023-11-19 05:09:20,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7681] [2023-11-19 05:09:20,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7712] [2023-11-19 05:09:20,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7715] [2023-11-19 05:09:20,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7718] [2023-11-19 05:09:20,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [7721] [2023-11-19 05:09:20,702 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] [2023-11-19 05:09:20,703 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8635] [2023-11-19 05:09:20,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8657] [2023-11-19 05:09:20,718 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] [2023-11-19 05:09:20,721 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] [2023-11-19 05:09:20,722 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8786] [2023-11-19 05:09:20,735 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8802] [2023-11-19 05:09:20,749 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] [2023-11-19 05:09:20,753 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] [2023-11-19 05:09:20,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8954] [2023-11-19 05:09:20,783 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8956] [2023-11-19 05:09:20,850 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9106] [2023-11-19 05:09:20,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9154] [2023-11-19 05:09:20,863 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] [2023-11-19 05:09:20,964 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] [2023-11-19 05:09:21,088 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] [2023-11-19 05:09:21,090 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] [2023-11-19 05:09:21,091 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] [2023-11-19 05:09:21,091 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] [2023-11-19 05:09:21,092 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] [2023-11-19 05:09:21,112 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [11769] [2023-11-19 05:09:21,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [11775] [2023-11-19 05:09:21,265 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_08c958af-de1d-432e-bb9a-065638a6e68e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2023-11-19 05:09:21,267 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_08c958af-de1d-432e-bb9a-065638a6e68e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2023-11-19 05:09:21,268 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_08c958af-de1d-432e-bb9a-065638a6e68e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2023-11-19 05:09:21,269 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_08c958af-de1d-432e-bb9a-065638a6e68e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2023-11-19 05:09:21,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:09:21,806 WARN L675 CHandler]: The function __bad_size_call_parameter is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:09:21,806 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:09:21,806 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:09:21,816 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:09:21,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:21 WrapperNode [2023-11-19 05:09:21,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:21,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:09:21,820 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:09:21,820 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:09:21,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:21" (1/1) ... [2023-11-19 05:09:21,997 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:21" (1/1) ... [2023-11-19 05:09:22,312 INFO L138 Inliner]: procedures = 614, calls = 2637, calls flagged for inlining = 324, calls inlined = 257, statements flattened = 7980 [2023-11-19 05:09:22,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:09:22,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:09:22,314 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:09:22,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:09:22,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:21" (1/1) ... [2023-11-19 05:09:22,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:21" (1/1) ... [2023-11-19 05:09:22,357 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:21" (1/1) ... [2023-11-19 05:09:22,358 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:21" (1/1) ... [2023-11-19 05:09:22,536 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:21" (1/1) ... [2023-11-19 05:09:22,579 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:21" (1/1) ... [2023-11-19 05:09:22,621 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:21" (1/1) ... [2023-11-19 05:09:22,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:21" (1/1) ... [2023-11-19 05:09:22,802 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:09:22,803 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:09:22,803 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:09:22,803 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:09:22,804 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:21" (1/1) ... [2023-11-19 05:09:22,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:09:22,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c958af-de1d-432e-bb9a-065638a6e68e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:09:22,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c958af-de1d-432e-bb9a-065638a6e68e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:09:22,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c958af-de1d-432e-bb9a-065638a6e68e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:09:22,925 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get [2023-11-19 05:09:22,925 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get [2023-11-19 05:09:22,925 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-19 05:09:22,925 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-19 05:09:22,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:09:22,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:09:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 05:09:22,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 05:09:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get_hash [2023-11-19 05:09:22,981 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get_hash [2023-11-19 05:09:22,981 INFO L130 BoogieDeclarations]: Found specification of procedure tun_attach [2023-11-19 05:09:22,981 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_attach [2023-11-19 05:09:22,981 INFO L130 BoogieDeclarations]: Found specification of procedure ns_capable [2023-11-19 05:09:22,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_capable [2023-11-19 05:09:22,981 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-11-19 05:09:22,982 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-11-19 05:09:22,982 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 05:09:22,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 05:09:22,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 05:09:22,982 INFO L130 BoogieDeclarations]: Found specification of procedure gid_valid [2023-11-19 05:09:22,982 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_valid [2023-11-19 05:09:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-11-19 05:09:22,983 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-11-19 05:09:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-19 05:09:22,983 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-19 05:09:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 05:09:22,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 05:09:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:09:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure sock_writeable [2023-11-19 05:09:22,984 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_writeable [2023-11-19 05:09:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 05:09:22,984 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 05:09:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure iov_length [2023-11-19 05:09:22,984 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_length [2023-11-19 05:09:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 05:09:22,985 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 05:09:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2023-11-19 05:09:22,985 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2023-11-19 05:09:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:09:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 05:09:22,986 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 05:09:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get_iff [2023-11-19 05:09:22,986 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get_iff [2023-11-19 05:09:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:09:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_76 [2023-11-19 05:09:22,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_76 [2023-11-19 05:09:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 05:09:22,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 05:09:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_detach [2023-11-19 05:09:22,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_detach [2023-11-19 05:09:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:09:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 05:09:22,987 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 05:09:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tun_cleanup_15_2 [2023-11-19 05:09:22,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tun_cleanup_15_2 [2023-11-19 05:09:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure tun_detach_all [2023-11-19 05:09:22,992 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_detach_all [2023-11-19 05:09:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2023-11-19 05:09:22,994 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2023-11-19 05:09:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2023-11-19 05:09:22,995 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2023-11-19 05:09:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 05:09:22,995 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 05:09:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2023-11-19 05:09:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2023-11-19 05:09:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 05:09:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 05:09:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:09:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 05:09:22,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 05:09:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-19 05:09:22,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-19 05:09:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-19 05:09:22,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-19 05:09:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:09:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 05:09:22,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 05:09:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:09:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 05:09:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure read_pnet [2023-11-19 05:09:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure read_pnet [2023-11-19 05:09:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-19 05:09:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-19 05:09:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-19 05:09:23,001 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-19 05:09:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure tun_setup [2023-11-19 05:09:23,001 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_setup [2023-11-19 05:09:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_transport_header [2023-11-19 05:09:23,001 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_transport_header [2023-11-19 05:09:23,002 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 05:09:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 05:09:23,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 05:09:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 05:09:23,003 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_find [2023-11-19 05:09:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_find [2023-11-19 05:09:23,003 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_uninit [2023-11-19 05:09:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_uninit [2023-11-19 05:09:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 05:09:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 05:09:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_net [2023-11-19 05:09:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_net [2023-11-19 05:09:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:09:23,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:09:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toiovecend [2023-11-19 05:09:23,005 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend [2023-11-19 05:09:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 05:09:23,006 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 05:09:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flags [2023-11-19 05:09:23,006 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flags [2023-11-19 05:09:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2023-11-19 05:09:23,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2023-11-19 05:09:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:09:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure uid_valid [2023-11-19 05:09:23,007 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_valid [2023-11-19 05:09:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:09:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:09:23,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:09:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 05:09:23,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 05:09:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-19 05:09:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-19 05:09:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2023-11-19 05:09:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-19 05:09:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-19 05:09:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rtnl_is_held [2023-11-19 05:09:23,012 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rtnl_is_held [2023-11-19 05:09:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-19 05:09:23,012 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-19 05:09:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2023-11-19 05:09:23,013 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2023-11-19 05:09:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:09:23,013 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:09:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_get [2023-11-19 05:09:23,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_get [2023-11-19 05:09:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-19 05:09:23,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-19 05:09:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure sk_attach_filter [2023-11-19 05:09:23,014 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_attach_filter [2023-11-19 05:09:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:09:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 05:09:23,015 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 05:09:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-11-19 05:09:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-11-19 05:09:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure put_net [2023-11-19 05:09:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure put_net [2023-11-19 05:09:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:09:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_const_iovec [2023-11-19 05:09:23,017 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_const_iovec [2023-11-19 05:09:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:09:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 05:09:23,018 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 05:09:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:09:23,019 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:09:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get_user [2023-11-19 05:09:23,019 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get_user [2023-11-19 05:09:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-11-19 05:09:23,020 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-11-19 05:09:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_chr_ioctl [2023-11-19 05:09:23,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_chr_ioctl [2023-11-19 05:09:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 05:09:23,027 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 05:09:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_delete [2023-11-19 05:09:23,028 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_delete [2023-11-19 05:09:23,029 INFO L130 BoogieDeclarations]: Found specification of procedure sock_rps_reset_flow_hash [2023-11-19 05:09:23,030 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_rps_reset_flow_hash [2023-11-19 05:09:23,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 05:09:23,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 05:09:23,032 INFO L130 BoogieDeclarations]: Found specification of procedure tun_queue_purge [2023-11-19 05:09:23,032 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_queue_purge [2023-11-19 05:09:23,039 INFO L130 BoogieDeclarations]: Found specification of procedure tun_hashfn [2023-11-19 05:09:23,040 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_hashfn [2023-11-19 05:09:23,040 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 05:09:23,040 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 05:09:23,040 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 05:09:23,041 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 05:09:23,041 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 05:09:23,041 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 05:09:23,041 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2023-11-19 05:09:23,042 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2023-11-19 05:09:23,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_75 [2023-11-19 05:09:23,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_75 [2023-11-19 05:09:23,042 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:09:23,042 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:09:23,043 INFO L130 BoogieDeclarations]: Found specification of procedure tun_enable_queue [2023-11-19 05:09:23,043 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_enable_queue [2023-11-19 05:09:23,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:09:23,044 INFO L130 BoogieDeclarations]: Found specification of procedure security_tun_dev_free_security [2023-11-19 05:09:23,044 INFO L138 BoogieDeclarations]: Found implementation of procedure security_tun_dev_free_security [2023-11-19 05:09:23,045 INFO L130 BoogieDeclarations]: Found specification of procedure hold_net [2023-11-19 05:09:23,045 INFO L138 BoogieDeclarations]: Found implementation of procedure hold_net [2023-11-19 05:09:23,045 INFO L130 BoogieDeclarations]: Found specification of procedure tun_set_real_num_queues [2023-11-19 05:09:23,045 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_set_real_num_queues [2023-11-19 05:09:23,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:09:23,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:09:23,046 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2023-11-19 05:09:23,046 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2023-11-19 05:09:23,046 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_link_unregister [2023-11-19 05:09:23,046 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_link_unregister [2023-11-19 05:09:23,047 INFO L130 BoogieDeclarations]: Found specification of procedure tun_do_read [2023-11-19 05:09:23,047 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_do_read [2023-11-19 05:09:23,047 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-19 05:09:23,047 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-19 05:09:23,048 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2023-11-19 05:09:23,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2023-11-19 05:09:23,048 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-19 05:09:23,048 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-19 05:09:23,048 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2023-11-19 05:09:23,049 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2023-11-19 05:09:23,049 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-19 05:09:23,049 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-19 05:09:23,049 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-11-19 05:09:23,049 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-11-19 05:09:23,050 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-19 05:09:23,050 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-19 05:09:23,050 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-19 05:09:23,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-19 05:09:23,050 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-19 05:09:23,051 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-19 05:09:23,051 INFO L130 BoogieDeclarations]: Found specification of procedure tun_detach_filter [2023-11-19 05:09:23,051 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_detach_filter [2023-11-19 05:09:23,051 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromiovecend [2023-11-19 05:09:23,051 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromiovecend [2023-11-19 05:09:23,052 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_up [2023-11-19 05:09:23,052 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_up [2023-11-19 05:09:23,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 05:09:23,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 05:09:23,052 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2023-11-19 05:09:23,053 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2023-11-19 05:09:23,053 INFO L130 BoogieDeclarations]: Found specification of procedure tun_put [2023-11-19 05:09:23,053 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_put [2023-11-19 05:09:23,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:09:23,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 05:09:23,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 05:09:24,303 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:09:24,310 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:09:24,895 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:09:32,240 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 05:09:32,382 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:09:37,282 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:09:37,282 INFO L302 CfgBuilder]: Removed 20 assume(true) statements. [2023-11-19 05:09:37,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:09:37 BoogieIcfgContainer [2023-11-19 05:09:37,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:09:37,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:09:37,313 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:09:37,317 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:09:37,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:09:14" (1/3) ... [2023-11-19 05:09:37,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111a9eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:09:37, skipping insertion in model container [2023-11-19 05:09:37,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:21" (2/3) ... [2023-11-19 05:09:37,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111a9eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:09:37, skipping insertion in model container [2023-11-19 05:09:37,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:09:37" (3/3) ... [2023-11-19 05:09:37,323 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2023-11-19 05:09:37,349 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:09:37,350 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 05:09:37,478 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:09:37,493 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;@6eb9ccc3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:09:37,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 05:09:37,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 1558 states, 960 states have (on average 1.3614583333333334) internal successors, (1307), 996 states have internal predecessors, (1307), 489 states have call successors, (489), 107 states have call predecessors, (489), 106 states have return successors, (482), 481 states have call predecessors, (482), 482 states have call successors, (482) [2023-11-19 05:09:37,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-11-19 05:09:37,556 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:09:37,557 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] [2023-11-19 05:09:37,558 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)] === [2023-11-19 05:09:37,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:09:37,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1921060565, now seen corresponding path program 1 times [2023-11-19 05:09:37,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:09:37,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966187763] [2023-11-19 05:09:37,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:09:37,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:09:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:09:39,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2862 trivial. 0 not checked. [2023-11-19 05:09:39,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:09:39,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966187763] [2023-11-19 05:09:39,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966187763] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:09:39,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:09:39,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:09:39,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130165002] [2023-11-19 05:09:39,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:09:39,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:09:39,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:09:39,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:09:39,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:09:39,417 INFO L87 Difference]: Start difference. First operand has 1558 states, 960 states have (on average 1.3614583333333334) internal successors, (1307), 996 states have internal predecessors, (1307), 489 states have call successors, (489), 107 states have call predecessors, (489), 106 states have return successors, (482), 481 states have call predecessors, (482), 482 states have call successors, (482) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-19 05:09:43,059 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 [] [2023-11-19 05:09:47,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:09:49,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:09:49,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:09:49,825 INFO L93 Difference]: Finished difference Result 4514 states and 6687 transitions. [2023-11-19 05:09:49,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:09:49,831 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 [2023-11-19 05:09:49,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:09:49,884 INFO L225 Difference]: With dead ends: 4514 [2023-11-19 05:09:49,885 INFO L226 Difference]: Without dead ends: 2995 [2023-11-19 05:09:49,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:09:49,916 INFO L413 NwaCegarLoop]: 2023 mSDtfsCounter, 2146 mSDsluCounter, 1871 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2146 SdHoareTripleChecker+Valid, 3894 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-11-19 05:09:49,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2146 Valid, 3894 Invalid, 777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 774 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2023-11-19 05:09:49,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2023-11-19 05:09:50,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2965. [2023-11-19 05:09:50,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 1846 states have (on average 1.3613217768147345) internal successors, (2513), 1921 states have internal predecessors, (2513), 909 states have call successors, (909), 209 states have call predecessors, (909), 207 states have return successors, (913), 897 states have call predecessors, (913), 905 states have call successors, (913) [2023-11-19 05:09:50,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 4335 transitions. [2023-11-19 05:09:50,226 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 4335 transitions. Word has length 291 [2023-11-19 05:09:50,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:09:50,232 INFO L495 AbstractCegarLoop]: Abstraction has 2965 states and 4335 transitions. [2023-11-19 05:09:50,232 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) [2023-11-19 05:09:50,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 4335 transitions. [2023-11-19 05:09:50,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2023-11-19 05:09:50,249 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:09:50,250 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] [2023-11-19 05:09:50,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:09:50,250 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)] === [2023-11-19 05:09:50,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:09:50,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1645065789, now seen corresponding path program 1 times [2023-11-19 05:09:50,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:09:50,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068740516] [2023-11-19 05:09:50,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:09:50,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:09:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:09:51,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2862 trivial. 0 not checked. [2023-11-19 05:09:51,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:09:51,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068740516] [2023-11-19 05:09:51,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068740516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:09:51,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:09:51,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:09:51,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764594266] [2023-11-19 05:09:51,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:09:51,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:09:51,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:09:51,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:09:51,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:09:51,134 INFO L87 Difference]: Start difference. First operand 2965 states and 4335 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-19 05:09:55,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:09:57,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []