./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_cf074fca-6b7d-4f14-a06e-15e77e0e602b/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf074fca-6b7d-4f14-a06e-15e77e0e602b/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf074fca-6b7d-4f14-a06e-15e77e0e602b/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf074fca-6b7d-4f14-a06e-15e77e0e602b/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf074fca-6b7d-4f14-a06e-15e77e0e602b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf074fca-6b7d-4f14-a06e-15e77e0e602b/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7918e78c7fa8e57a6cd382ed800c3c73f2f498c616ea3e9ed6a8775509cf80ff --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 20:58:44,524 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:58:44,647 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf074fca-6b7d-4f14-a06e-15e77e0e602b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 20:58:44,658 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:58:44,659 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:58:44,700 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:58:44,701 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:58:44,701 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:58:44,703 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 20:58:44,710 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 20:58:44,711 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 20:58:44,711 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 20:58:44,712 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:58:44,714 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:58:44,715 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:58:44,715 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:58:44,716 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 20:58:44,716 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 20:58:44,717 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:58:44,717 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 20:58:44,718 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 20:58:44,718 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 20:58:44,719 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:58:44,719 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:58:44,720 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:58:44,721 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:58:44,721 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 20:58:44,722 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 20:58:44,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:58:44,722 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:58:44,724 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 20:58:44,724 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 20:58:44,725 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 20:58:44,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 20:58:44,725 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 20:58:44,725 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 20:58:44,726 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 20:58:44,726 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 20:58:44,726 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 20:58:44,726 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_cf074fca-6b7d-4f14-a06e-15e77e0e602b/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf074fca-6b7d-4f14-a06e-15e77e0e602b/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7918e78c7fa8e57a6cd382ed800c3c73f2f498c616ea3e9ed6a8775509cf80ff [2023-11-21 20:58:45,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:58:45,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:58:45,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:58:45,112 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:58:45,113 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:58:45,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf074fca-6b7d-4f14-a06e-15e77e0e602b/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2023-11-21 20:58:48,128 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 20:58:48,850 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 20:58:48,851 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf074fca-6b7d-4f14-a06e-15e77e0e602b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2023-11-21 20:58:48,913 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf074fca-6b7d-4f14-a06e-15e77e0e602b/bin/uautomizer-verify-bycVGegfSx/data/7ed592c79/742f6813e9114d978cf8cadec8bc0a60/FLAGbeb78a357 [2023-11-21 20:58:48,932 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf074fca-6b7d-4f14-a06e-15e77e0e602b/bin/uautomizer-verify-bycVGegfSx/data/7ed592c79/742f6813e9114d978cf8cadec8bc0a60 [2023-11-21 20:58:48,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 20:58:48,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 20:58:48,941 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 20:58:48,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 20:58:48,947 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 20:58:48,948 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:58:48" (1/1) ... [2023-11-21 20:58:48,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf813d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:48, skipping insertion in model container [2023-11-21 20:58:48,950 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:58:48" (1/1) ... [2023-11-21 20:58:49,158 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 20:58:52,019 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_cf074fca-6b7d-4f14-a06e-15e77e0e602b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[325202,325215] [2023-11-21 20:58:52,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:58:52,137 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 20:58:52,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6154] [2023-11-21 20:58:52,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6156] [2023-11-21 20:58:52,321 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"); [6166] [2023-11-21 20:58:52,321 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)); [6174-6175] [2023-11-21 20:58:52,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [6351] [2023-11-21 20:58:52,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6354] [2023-11-21 20:58:52,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6357] [2023-11-21 20:58:52,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6360] [2023-11-21 20:58:52,332 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)); [6394] [2023-11-21 20:58:52,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0": "+m" (v->counter)); [6401] [2023-11-21 20:58:52,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [6409-6410] [2023-11-21 20:58:52,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [6449] [2023-11-21 20:58:52,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [6452] [2023-11-21 20:58:52,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (val)); [6454] [2023-11-21 20:58:52,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [6459] [2023-11-21 20:58:52,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [6462] [2023-11-21 20:58:52,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [6464] [2023-11-21 20:58:52,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [6469] [2023-11-21 20:58:52,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [6472] [2023-11-21 20:58:52,340 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [6474] [2023-11-21 20:58:52,340 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [6479] [2023-11-21 20:58:52,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [6482] [2023-11-21 20:58:52,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (val)); [6484] [2023-11-21 20:58:52,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [6502] [2023-11-21 20:58:52,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [6505] [2023-11-21 20:58:52,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (- val)); [6507] [2023-11-21 20:58:52,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [6512] [2023-11-21 20:58:52,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [6515] [2023-11-21 20:58:52,346 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [6517] [2023-11-21 20:58:52,346 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [6522] [2023-11-21 20:58:52,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [6525] [2023-11-21 20:58:52,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [6527] [2023-11-21 20:58:52,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [6532] [2023-11-21 20:58:52,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [6535] [2023-11-21 20:58:52,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (- val)); [6537] [2023-11-21 20:58:52,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6617] [2023-11-21 20:58:52,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6624] [2023-11-21 20:58:52,366 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" (1056), "i" (12UL)); [6887-6888] [2023-11-21 20:58:52,387 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" (1714), "i" (12UL)); [7054-7055] [2023-11-21 20:58:52,406 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/11985/dscv_tempdir/dscv/ri/43_2a/drivers/net/ppp/ppp_generic.c"), "i" (291), "i" (12UL)); [7404-7405] [2023-11-21 20:58:52,413 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___1->state): : "memory", "cc"); [7566-7567] [2023-11-21 20:58:52,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___2->state): : "memory", "cc"); [7571-7572] [2023-11-21 20:58:52,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [7576-7577] [2023-11-21 20:58:52,416 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [7581-7582] [2023-11-21 20:58:52,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___0), "+m" (tmp___8->state): : "memory", "cc"); [7628-7629] [2023-11-21 20:58:52,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___0), "+m" (tmp___9->state): : "memory", "cc"); [7633-7634] [2023-11-21 20:58:52,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___0), "+m" (tmp___10->state): : "memory", "cc"); [7638-7639] [2023-11-21 20:58:52,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___0), "+m" (tmp___11->state): : "memory", "cc"); [7643-7644] [2023-11-21 20:58:52,447 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (p), "i" (4UL)); [7886-7887] [2023-11-21 20:58:52,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___0), "=r" (__val_gu___0): "0" (p), "i" (4UL)); [7927-7928] [2023-11-21 20:58:52,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___1), "=r" (__val_gu___1): "0" (p), "i" (4UL)); [7940-7941] [2023-11-21 20:58:52,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [7970] [2023-11-21 20:58:52,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [7973] [2023-11-21 20:58:52,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [7976] [2023-11-21 20:58:52,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [7979] [2023-11-21 20:58:52,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [7982] [2023-11-21 20:58:52,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [8001-8002] [2023-11-21 20:58:52,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [8005-8006] [2023-11-21 20:58:52,460 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [8009-8010] [2023-11-21 20:58:52,460 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [8013-8014] [2023-11-21 20:58:52,460 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [8017-8018] [2023-11-21 20:58:52,461 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___2), "=r" (__val_gu___2): "0" (p), "i" (4UL)); [8031-8032] [2023-11-21 20:58:52,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [8047-8048] [2023-11-21 20:58:52,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [8051-8052] [2023-11-21 20:58:52,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [8055-8056] [2023-11-21 20:58:52,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [8059-8060] [2023-11-21 20:58:52,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [8063-8064] [2023-11-21 20:58:52,470 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___3), "=r" (__val_gu___3): "0" (p), "i" (4UL)); [8087-8088] [2023-11-21 20:58:52,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___4), "=r" (__val_gu___4): "0" (p), "i" (4UL)); [8202-8203] [2023-11-21 20:58:52,479 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (p), "i" (4UL)); [8247-8248] [2023-11-21 20:58:52,480 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8267] [2023-11-21 20:58:52,481 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8270] [2023-11-21 20:58:52,481 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8273] [2023-11-21 20:58:52,481 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8276] [2023-11-21 20:58:52,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8279] [2023-11-21 20:58:52,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___0), "=r" (__val_gu___0): "0" (p), "i" (4UL)); [8292-8293] [2023-11-21 20:58:52,484 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___1), "=r" (__val_gu___1): "0" (p), "i" (4UL)); [8314-8315] [2023-11-21 20:58:52,726 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_cf074fca-6b7d-4f14-a06e-15e77e0e602b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[325202,325215] [2023-11-21 20:58:52,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:58:52,898 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 20:58:52,899 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 20:58:52,899 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 20:58:52,907 INFO L206 MainTranslator]: Completed translation [2023-11-21 20:58:52,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:52 WrapperNode [2023-11-21 20:58:52,908 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 20:58:52,909 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 20:58:52,909 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 20:58:52,910 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 20:58:52,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:52" (1/1) ... [2023-11-21 20:58:53,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:52" (1/1) ... [2023-11-21 20:58:53,281 INFO L138 Inliner]: procedures = 336, calls = 2319, calls flagged for inlining = 156, calls inlined = 154, statements flattened = 6333 [2023-11-21 20:58:53,282 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 20:58:53,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 20:58:53,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 20:58:53,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 20:58:53,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:52" (1/1) ... [2023-11-21 20:58:53,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:52" (1/1) ... [2023-11-21 20:58:53,376 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:52" (1/1) ... [2023-11-21 20:58:55,229 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memset is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 20:58:55,230 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:52" (1/1) ... [2023-11-21 20:58:55,230 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:52" (1/1) ... [2023-11-21 20:58:55,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:52" (1/1) ... [2023-11-21 20:58:55,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:52" (1/1) ... [2023-11-21 20:58:55,470 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:52" (1/1) ... [2023-11-21 20:58:55,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:52" (1/1) ... [2023-11-21 20:58:55,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 20:58:55,548 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 20:58:55,548 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 20:58:55,549 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 20:58:55,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:52" (1/1) ... [2023-11-21 20:58:55,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:58:55,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf074fca-6b7d-4f14-a06e-15e77e0e602b/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:55,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf074fca-6b7d-4f14-a06e-15e77e0e602b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:55,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf074fca-6b7d-4f14-a06e-15e77e0e602b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 20:58:55,623 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2023-11-21 20:58:55,624 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2023-11-21 20:58:55,624 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-21 20:58:55,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-21 20:58:55,624 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2023-11-21 20:58:55,624 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2023-11-21 20:58:55,625 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2023-11-21 20:58:55,625 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2023-11-21 20:58:55,625 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-21 20:58:55,626 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2023-11-21 20:58:55,626 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2023-11-21 20:58:55,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 20:58:55,626 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2023-11-21 20:58:55,626 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2023-11-21 20:58:55,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 20:58:55,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 20:58:55,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 20:58:55,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 20:58:55,627 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 20:58:55,627 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2023-11-21 20:58:55,627 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2023-11-21 20:58:55,628 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-11-21 20:58:55,628 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-11-21 20:58:55,628 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2023-11-21 20:58:55,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2023-11-21 20:58:55,628 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2023-11-21 20:58:55,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2023-11-21 20:58:55,629 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2023-11-21 20:58:55,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2023-11-21 20:58:55,629 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2023-11-21 20:58:55,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2023-11-21 20:58:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-21 20:58:55,631 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-21 20:58:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-21 20:58:55,632 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-21 20:58:55,632 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-21 20:58:55,632 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-21 20:58:55,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-21 20:58:55,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-21 20:58:55,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 20:58:55,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 20:58:55,633 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2023-11-21 20:58:55,634 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2023-11-21 20:58:55,634 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2023-11-21 20:58:55,634 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2023-11-21 20:58:55,634 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2023-11-21 20:58:55,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2023-11-21 20:58:55,634 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2023-11-21 20:58:55,635 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2023-11-21 20:58:55,635 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 20:58:55,635 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 20:58:55,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 20:58:55,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 20:58:55,636 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2023-11-21 20:58:55,636 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2023-11-21 20:58:55,636 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-21 20:58:55,636 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-21 20:58:55,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 20:58:55,637 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 20:58:55,638 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2023-11-21 20:58:55,638 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2023-11-21 20:58:55,638 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 20:58:55,638 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 20:58:55,639 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-21 20:58:55,639 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-21 20:58:55,639 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-21 20:58:55,639 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-21 20:58:55,639 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 20:58:55,639 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 20:58:55,640 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2023-11-21 20:58:55,641 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2023-11-21 20:58:55,644 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2023-11-21 20:58:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2023-11-21 20:58:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-21 20:58:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-21 20:58:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2023-11-21 20:58:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2023-11-21 20:58:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 20:58:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-21 20:58:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-21 20:58:55,654 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-21 20:58:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2023-11-21 20:58:55,654 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2023-11-21 20:58:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-11-21 20:58:55,655 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-11-21 20:58:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2023-11-21 20:58:55,656 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2023-11-21 20:58:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 20:58:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats64 [2023-11-21 20:58:55,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats64 [2023-11-21 20:58:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-11-21 20:58:55,657 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-11-21 20:58:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-21 20:58:55,657 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-21 20:58:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2023-11-21 20:58:55,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2023-11-21 20:58:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-21 20:58:55,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-21 20:58:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-21 20:58:55,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-21 20:58:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 20:58:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 20:58:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2023-11-21 20:58:55,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2023-11-21 20:58:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2023-11-21 20:58:55,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2023-11-21 20:58:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 20:58:55,659 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 20:58:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-11-21 20:58:55,659 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-11-21 20:58:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-21 20:58:55,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-21 20:58:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-21 20:58:55,660 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-21 20:58:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-21 20:58:55,660 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-21 20:58:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-21 20:58:55,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-21 20:58:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2023-11-21 20:58:55,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2023-11-21 20:58:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-21 20:58:55,661 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-21 20:58:55,662 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-21 20:58:55,662 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-21 20:58:55,662 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-21 20:58:55,662 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-21 20:58:55,662 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2023-11-21 20:58:55,663 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2023-11-21 20:58:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2023-11-21 20:58:55,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2023-11-21 20:58:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-21 20:58:55,663 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-21 20:58:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-11-21 20:58:55,663 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-11-21 20:58:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 20:58:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2023-11-21 20:58:55,664 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2023-11-21 20:58:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-21 20:58:55,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-21 20:58:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2023-11-21 20:58:55,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2023-11-21 20:58:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_net_ioctl [2023-11-21 20:58:55,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_net_ioctl [2023-11-21 20:58:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 20:58:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2023-11-21 20:58:55,665 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2023-11-21 20:58:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-21 20:58:55,665 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-21 20:58:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 20:58:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-21 20:58:55,666 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-21 20:58:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2023-11-21 20:58:55,666 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2023-11-21 20:58:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2023-11-21 20:58:55,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2023-11-21 20:58:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2023-11-21 20:58:55,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2023-11-21 20:58:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2023-11-21 20:58:55,667 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2023-11-21 20:58:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 20:58:55,667 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 20:58:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2023-11-21 20:58:55,668 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2023-11-21 20:58:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2023-11-21 20:58:55,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2023-11-21 20:58:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2023-11-21 20:58:55,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2023-11-21 20:58:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2023-11-21 20:58:55,668 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2023-11-21 20:58:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2023-11-21 20:58:55,669 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2023-11-21 20:58:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-21 20:58:55,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-21 20:58:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2023-11-21 20:58:55,669 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2023-11-21 20:58:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2023-11-21 20:58:55,725 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2023-11-21 20:58:55,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_39 [2023-11-21 20:58:55,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_39 [2023-11-21 20:58:55,725 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 20:58:55,725 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 20:58:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2023-11-21 20:58:55,726 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2023-11-21 20:58:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2023-11-21 20:58:55,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2023-11-21 20:58:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2023-11-21 20:58:55,726 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2023-11-21 20:58:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 20:58:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-21 20:58:55,726 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-21 20:58:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-11-21 20:58:55,726 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-11-21 20:58:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2023-11-21 20:58:55,727 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2023-11-21 20:58:55,727 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_write [2023-11-21 20:58:55,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_write [2023-11-21 20:58:55,727 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-11-21 20:58:55,727 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-11-21 20:58:55,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 20:58:55,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 20:58:55,727 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-11-21 20:58:55,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-11-21 20:58:55,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-21 20:58:55,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-21 20:58:55,727 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2023-11-21 20:58:55,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2023-11-21 20:58:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2023-11-21 20:58:55,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2023-11-21 20:58:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 20:58:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-21 20:58:55,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-21 20:58:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-21 20:58:55,728 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-21 20:58:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-21 20:58:55,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-21 20:58:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 20:58:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-21 20:58:55,728 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-21 20:58:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 20:58:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-11-21 20:58:55,729 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-11-21 20:58:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-21 20:58:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2023-11-21 20:58:55,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2023-11-21 20:58:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 20:58:55,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 20:58:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2023-11-21 20:58:55,729 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2023-11-21 20:58:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2023-11-21 20:58:55,729 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2023-11-21 20:58:55,730 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_printk [2023-11-21 20:58:55,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_printk [2023-11-21 20:58:55,730 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-11-21 20:58:55,730 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-11-21 20:58:55,730 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-21 20:58:55,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-21 20:58:55,730 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-21 20:58:55,730 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-21 20:58:55,730 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2023-11-21 20:58:55,730 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2023-11-21 20:58:55,730 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-21 20:58:55,730 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-21 20:58:55,730 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-11-21 20:58:55,731 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-11-21 20:58:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-21 20:58:55,731 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-21 20:58:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2023-11-21 20:58:55,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2023-11-21 20:58:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-21 20:58:55,731 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-21 20:58:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2023-11-21 20:58:55,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2023-11-21 20:58:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2023-11-21 20:58:55,731 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2023-11-21 20:58:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-21 20:58:55,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-21 20:58:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2023-11-21 20:58:55,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2023-11-21 20:58:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2023-11-21 20:58:55,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2023-11-21 20:58:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2023-11-21 20:58:55,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2023-11-21 20:58:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 20:58:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2023-11-21 20:58:55,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2023-11-21 20:58:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-21 20:58:55,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-21 20:58:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 20:58:55,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 20:58:55,733 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2023-11-21 20:58:55,733 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2023-11-21 20:58:55,739 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-21 20:58:55,739 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-21 20:58:56,687 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 20:58:56,692 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 20:58:57,233 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 20:59:02,136 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 20:59:07,216 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 20:59:07,216 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 20:59:07,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:07 BoogieIcfgContainer [2023-11-21 20:59:07,219 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 20:59:07,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 20:59:07,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 20:59:07,226 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 20:59:07,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:58:48" (1/3) ... [2023-11-21 20:59:07,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e08e693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:07, skipping insertion in model container [2023-11-21 20:59:07,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:52" (2/3) ... [2023-11-21 20:59:07,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e08e693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:07, skipping insertion in model container [2023-11-21 20:59:07,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:07" (3/3) ... [2023-11-21 20:59:07,230 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2023-11-21 20:59:07,255 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 20:59:07,255 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 20:59:07,364 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 20:59:07,373 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=PETRI_NET, 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;@14fdc774, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 20:59:07,373 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 20:59:07,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 1687 states, 1014 states have (on average 1.3530571992110454) internal successors, (1372), 1083 states have internal predecessors, (1372), 545 states have call successors, (545), 127 states have call predecessors, (545), 126 states have return successors, (540), 520 states have call predecessors, (540), 540 states have call successors, (540) [2023-11-21 20:59:07,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-11-21 20:59:07,436 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:07,437 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:59:07,437 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:59:07,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:07,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1220501296, now seen corresponding path program 1 times [2023-11-21 20:59:07,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:07,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164162612] [2023-11-21 20:59:07,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:07,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:59:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 20:59:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:59:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 20:59:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:59:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 20:59:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:59:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-21 20:59:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:59:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 20:59:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:59:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-21 20:59:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:59:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-21 20:59:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:59:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-21 20:59:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-21 20:59:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-21 20:59:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-21 20:59:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-21 20:59:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-21 20:59:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:08,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-21 20:59:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:09,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:09,013 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2023-11-21 20:59:09,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:59:09,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164162612] [2023-11-21 20:59:09,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164162612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:59:09,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:59:09,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 20:59:09,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015202731] [2023-11-21 20:59:09,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:59:09,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 20:59:09,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:59:09,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 20:59:09,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 20:59:09,058 INFO L87 Difference]: Start difference. First operand has 1687 states, 1014 states have (on average 1.3530571992110454) internal successors, (1372), 1083 states have internal predecessors, (1372), 545 states have call successors, (545), 127 states have call predecessors, (545), 126 states have return successors, (540), 520 states have call predecessors, (540), 540 states have call successors, (540) Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-21 20:59:12,700 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 [] [2023-11-21 20:59:15,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:59:17,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:59:19,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:59:21,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:59:24,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:59:26,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:59:28,743 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 []