./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/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_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1 --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 7042caef2b07f4b73e0d06f42dcf6069ad2ecac0c225cd34c9db55fea01f29da --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:44:36,395 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:44:36,451 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 08:44:36,456 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:44:36,457 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:44:36,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:44:36,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:44:36,480 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:44:36,481 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:44:36,481 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:44:36,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:44:36,481 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:44:36,481 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:44:36,481 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:44:36,481 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:44:36,482 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:44:36,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:44:36,482 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:44:36,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:44:36,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:44:36,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:44:36,482 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:44:36,482 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:44:36,482 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:44:36,482 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:44:36,482 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:44:36,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:44:36,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:44:36,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:44:36,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:44:36,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:44:36,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:44:36,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:44:36,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:44:36,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:44:36,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:44:36,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:44:36,483 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:44:36,484 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:44:36,484 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:44:36,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:44:36,484 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:44:36,484 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:44:36,484 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:44:36,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:44:36,484 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1 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 -> 7042caef2b07f4b73e0d06f42dcf6069ad2ecac0c225cd34c9db55fea01f29da [2024-12-02 08:44:36,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:44:36,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:44:36,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:44:36,725 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:44:36,725 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:44:36,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2024-12-02 08:44:39,423 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/data/eb0072110/1d71ecb56ab743f4aeae820afb2ef167/FLAG4369d535a [2024-12-02 08:44:39,892 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:44:39,893 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2024-12-02 08:44:39,931 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/data/eb0072110/1d71ecb56ab743f4aeae820afb2ef167/FLAG4369d535a [2024-12-02 08:44:39,946 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/data/eb0072110/1d71ecb56ab743f4aeae820afb2ef167 [2024-12-02 08:44:39,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:44:39,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:44:39,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:44:39,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:44:39,957 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:44:39,957 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:44:39" (1/1) ... [2024-12-02 08:44:39,958 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6390095a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:39, skipping insertion in model container [2024-12-02 08:44:39,958 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:44:39" (1/1) ... [2024-12-02 08:44:40,049 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:44:41,794 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/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] [2024-12-02 08:44:41,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:44:41,879 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:44:41,950 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6154] [2024-12-02 08:44:41,951 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6156] [2024-12-02 08:44:41,952 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] [2024-12-02 08:44:41,952 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] [2024-12-02 08:44:41,977 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [6351] [2024-12-02 08:44:41,977 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6354] [2024-12-02 08:44:41,977 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6357] [2024-12-02 08:44:41,978 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6360] [2024-12-02 08:44:41,979 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] [2024-12-02 08:44:41,979 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] [2024-12-02 08:44:41,979 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] [2024-12-02 08:44:41,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [6449] [2024-12-02 08:44:41,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [6452] [2024-12-02 08:44:41,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (val)); [6454] [2024-12-02 08:44:41,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [6459] [2024-12-02 08:44:41,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [6462] [2024-12-02 08:44:41,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [6464] [2024-12-02 08:44:41,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [6469] [2024-12-02 08:44:41,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [6472] [2024-12-02 08:44:41,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [6474] [2024-12-02 08:44:41,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [6479] [2024-12-02 08:44:41,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [6482] [2024-12-02 08:44:41,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (val)); [6484] [2024-12-02 08:44:41,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [6502] [2024-12-02 08:44:41,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [6505] [2024-12-02 08:44:41,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (- val)); [6507] [2024-12-02 08:44:41,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [6512] [2024-12-02 08:44:41,985 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [6515] [2024-12-02 08:44:41,985 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [6517] [2024-12-02 08:44:41,985 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [6522] [2024-12-02 08:44:41,985 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [6525] [2024-12-02 08:44:41,985 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [6527] [2024-12-02 08:44:41,985 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [6532] [2024-12-02 08:44:41,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [6535] [2024-12-02 08:44:41,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (- val)); [6537] [2024-12-02 08:44:41,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6617] [2024-12-02 08:44:41,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6624] [2024-12-02 08:44:41,998 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] [2024-12-02 08:44:42,012 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] [2024-12-02 08:44:42,027 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] [2024-12-02 08:44:42,032 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] [2024-12-02 08:44:42,033 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] [2024-12-02 08:44:42,033 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] [2024-12-02 08:44:42,033 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] [2024-12-02 08:44:42,035 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] [2024-12-02 08:44:42,035 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] [2024-12-02 08:44:42,035 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] [2024-12-02 08:44:42,036 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] [2024-12-02 08:44:42,049 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] [2024-12-02 08:44:42,052 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] [2024-12-02 08:44:42,053 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] [2024-12-02 08:44:42,055 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] [2024-12-02 08:44:42,055 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] [2024-12-02 08:44:42,056 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] [2024-12-02 08:44:42,056 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] [2024-12-02 08:44:42,056 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] [2024-12-02 08:44:42,057 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] [2024-12-02 08:44:42,057 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] [2024-12-02 08:44:42,057 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] [2024-12-02 08:44:42,058 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] [2024-12-02 08:44:42,058 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] [2024-12-02 08:44:42,058 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] [2024-12-02 08:44:42,059 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] [2024-12-02 08:44:42,059 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] [2024-12-02 08:44:42,060 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] [2024-12-02 08:44:42,060 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] [2024-12-02 08:44:42,060 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] [2024-12-02 08:44:42,061 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] [2024-12-02 08:44:42,067 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] [2024-12-02 08:44:42,070 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] [2024-12-02 08:44:42,071 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] [2024-12-02 08:44:42,071 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] [2024-12-02 08:44:42,072 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] [2024-12-02 08:44:42,072 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] [2024-12-02 08:44:42,072 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] [2024-12-02 08:44:42,072 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] [2024-12-02 08:44:42,074 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] [2024-12-02 08:44:42,217 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/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] [2024-12-02 08:44:42,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:44:42,346 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:44:42,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:42 WrapperNode [2024-12-02 08:44:42,346 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:44:42,347 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:44:42,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:44:42,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:44:42,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:42" (1/1) ... [2024-12-02 08:44:42,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:42" (1/1) ... [2024-12-02 08:44:42,581 INFO L138 Inliner]: procedures = 336, calls = 2312, calls flagged for inlining = 156, calls inlined = 154, statements flattened = 6498 [2024-12-02 08:44:42,581 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:44:42,582 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:44:42,582 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:44:42,582 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:44:42,592 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:42" (1/1) ... [2024-12-02 08:44:42,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:42" (1/1) ... [2024-12-02 08:44:42,618 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:42" (1/1) ... [2024-12-02 08:44:43,729 INFO L175 MemorySlicer]: Split 1282 memory accesses to 22 slices as follows [2, 4, 16, 4, 7, 4, 11, 1, 5, 11, 4, 6, 10, 8, 10, 7, 7, 29, 2, 6, 907, 221]. 71 percent of accesses are in the largest equivalence class. The 87 initializations are split as follows [2, 4, 16, 4, 7, 4, 0, 1, 0, 0, 0, 0, 10, 8, 0, 6, 6, 0, 0, 0, 19, 0]. The 572 writes are split as follows [0, 0, 0, 0, 0, 0, 1, 0, 5, 10, 2, 4, 0, 0, 2, 0, 0, 29, 2, 2, 294, 221]. [2024-12-02 08:44:43,730 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:42" (1/1) ... [2024-12-02 08:44:43,730 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:42" (1/1) ... [2024-12-02 08:44:43,832 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:42" (1/1) ... [2024-12-02 08:44:43,843 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:42" (1/1) ... [2024-12-02 08:44:43,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:42" (1/1) ... [2024-12-02 08:44:43,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:42" (1/1) ... [2024-12-02 08:44:43,917 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:42" (1/1) ... [2024-12-02 08:44:43,957 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:44:43,958 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:44:43,958 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:44:43,958 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:44:43,959 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:42" (1/1) ... [2024-12-02 08:44:43,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:44:43,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:44:43,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:44:43,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:44:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2024-12-02 08:44:44,001 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2024-12-02 08:44:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2024-12-02 08:44:44,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2024-12-02 08:44:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2024-12-02 08:44:44,001 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2024-12-02 08:44:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2024-12-02 08:44:44,001 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2024-12-02 08:44:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2024-12-02 08:44:44,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __xchg_wrong_size [2024-12-02 08:44:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2024-12-02 08:44:44,001 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2024-12-02 08:44:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 08:44:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 08:44:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 08:44:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 08:44:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 08:44:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 08:44:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 08:44:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 08:44:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-12-02 08:44:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-12-02 08:44:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-12-02 08:44:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-12-02 08:44:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-12-02 08:44:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2024-12-02 08:44:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2024-12-02 08:44:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2024-12-02 08:44:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2024-12-02 08:44:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#17 [2024-12-02 08:44:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#18 [2024-12-02 08:44:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#19 [2024-12-02 08:44:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#20 [2024-12-02 08:44:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#21 [2024-12-02 08:44:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2024-12-02 08:44:44,003 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2024-12-02 08:44:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 08:44:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 08:44:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 08:44:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 08:44:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 08:44:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 08:44:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 08:44:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 08:44:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 08:44:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 08:44:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 08:44:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 08:44:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 08:44:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 08:44:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-12-02 08:44:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-12-02 08:44:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-12-02 08:44:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-12-02 08:44:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-12-02 08:44:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-12-02 08:44:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2024-12-02 08:44:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2024-12-02 08:44:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 08:44:44,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 08:44:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-12-02 08:44:44,005 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-12-02 08:44:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2024-12-02 08:44:44,005 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2024-12-02 08:44:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2024-12-02 08:44:44,005 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2024-12-02 08:44:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2024-12-02 08:44:44,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2024-12-02 08:44:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2024-12-02 08:44:44,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2024-12-02 08:44:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2024-12-02 08:44:44,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2024-12-02 08:44:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2024-12-02 08:44:44,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2024-12-02 08:44:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-12-02 08:44:44,005 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-12-02 08:44:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2024-12-02 08:44:44,005 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2024-12-02 08:44:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-12-02 08:44:44,005 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-12-02 08:44:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-12-02 08:44:44,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-12-02 08:44:44,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 08:44:44,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 08:44:44,006 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2024-12-02 08:44:44,006 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2024-12-02 08:44:44,006 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2024-12-02 08:44:44,006 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2024-12-02 08:44:44,006 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2024-12-02 08:44:44,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2024-12-02 08:44:44,006 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2024-12-02 08:44:44,006 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2024-12-02 08:44:44,006 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-12-02 08:44:44,006 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-12-02 08:44:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 08:44:44,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 08:44:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2024-12-02 08:44:44,007 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2024-12-02 08:44:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2024-12-02 08:44:44,007 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2024-12-02 08:44:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-12-02 08:44:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-12-02 08:44:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#15 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#16 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#17 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#18 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#19 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#20 [2024-12-02 08:44:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#21 [2024-12-02 08:44:44,008 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-12-02 08:44:44,008 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-12-02 08:44:44,008 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#15 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#16 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#17 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#18 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#19 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#20 [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#21 [2024-12-02 08:44:44,009 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2024-12-02 08:44:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2024-12-02 08:44:44,009 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:44:44,010 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:44:44,010 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-12-02 08:44:44,010 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-12-02 08:44:44,010 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-12-02 08:44:44,010 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-12-02 08:44:44,010 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-12-02 08:44:44,010 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-12-02 08:44:44,010 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2024-12-02 08:44:44,010 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2024-12-02 08:44:44,010 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2024-12-02 08:44:44,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2024-12-02 08:44:44,010 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-12-02 08:44:44,010 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-12-02 08:44:44,010 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2024-12-02 08:44:44,010 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2024-12-02 08:44:44,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 08:44:44,010 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-12-02 08:44:44,011 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2024-12-02 08:44:44,011 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2024-12-02 08:44:44,011 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2024-12-02 08:44:44,011 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-02 08:44:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-12-02 08:44:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-12-02 08:44:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-12-02 08:44:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-12-02 08:44:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-12-02 08:44:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-12-02 08:44:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-12-02 08:44:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats64 [2024-12-02 08:44:44,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats64 [2024-12-02 08:44:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2024-12-02 08:44:44,012 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2024-12-02 08:44:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2024-12-02 08:44:44,012 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2024-12-02 08:44:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2024-12-02 08:44:44,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2024-12-02 08:44:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2024-12-02 08:44:44,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2024-12-02 08:44:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-12-02 08:44:44,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-12-02 08:44:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 08:44:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 08:44:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 08:44:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 08:44:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 08:44:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 08:44:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 08:44:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 08:44:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 08:44:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 08:44:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 08:44:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-02 08:44:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-12-02 08:44:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-12-02 08:44:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-12-02 08:44:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-12-02 08:44:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-12-02 08:44:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-12-02 08:44:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-12-02 08:44:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-12-02 08:44:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-12-02 08:44:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-12-02 08:44:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-12-02 08:44:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2024-12-02 08:44:44,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2024-12-02 08:44:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2024-12-02 08:44:44,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2024-12-02 08:44:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 08:44:44,015 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 08:44:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2024-12-02 08:44:44,015 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2024-12-02 08:44:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-12-02 08:44:44,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-12-02 08:44:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-12-02 08:44:44,015 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-12-02 08:44:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-12-02 08:44:44,015 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-12-02 08:44:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2024-12-02 08:44:44,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2024-12-02 08:44:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2024-12-02 08:44:44,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2024-12-02 08:44:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-12-02 08:44:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-12-02 08:44:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-12-02 08:44:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2024-12-02 08:44:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2024-12-02 08:44:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-12-02 08:44:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2024-12-02 08:44:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-12-02 08:44:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#17 [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#18 [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#19 [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#20 [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#21 [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2024-12-02 08:44:44,017 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-12-02 08:44:44,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2024-12-02 08:44:44,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_net_ioctl [2024-12-02 08:44:44,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_net_ioctl [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 08:44:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2024-12-02 08:44:44,018 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2024-12-02 08:44:44,018 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 08:44:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-12-02 08:44:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2024-12-02 08:44:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2024-12-02 08:44:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2024-12-02 08:44:44,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2024-12-02 08:44:44,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2024-12-02 08:44:44,020 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#14 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#15 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#16 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#17 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#18 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#19 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#20 [2024-12-02 08:44:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#21 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#14 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#15 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#16 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#17 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#18 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#19 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#20 [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#21 [2024-12-02 08:44:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2024-12-02 08:44:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2024-12-02 08:44:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2024-12-02 08:44:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2024-12-02 08:44:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2024-12-02 08:44:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2024-12-02 08:44:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2024-12-02 08:44:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2024-12-02 08:44:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2024-12-02 08:44:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-12-02 08:44:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-12-02 08:44:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2024-12-02 08:44:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2024-12-02 08:44:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2024-12-02 08:44:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2024-12-02 08:44:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_39 [2024-12-02 08:44:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_39 [2024-12-02 08:44:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-12-02 08:44:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-12-02 08:44:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2024-12-02 08:44:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2024-12-02 08:44:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2024-12-02 08:44:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2024-12-02 08:44:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2024-12-02 08:44:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2024-12-02 08:44:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 08:44:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 08:44:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 08:44:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 08:44:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-12-02 08:44:44,023 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-12-02 08:44:44,023 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2024-12-02 08:44:44,023 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_write [2024-12-02 08:44:44,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_write [2024-12-02 08:44:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2024-12-02 08:44:44,023 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2024-12-02 08:44:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 08:44:44,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 08:44:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2024-12-02 08:44:44,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2024-12-02 08:44:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-12-02 08:44:44,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-12-02 08:44:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2024-12-02 08:44:44,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2024-12-02 08:44:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2024-12-02 08:44:44,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2024-12-02 08:44:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 08:44:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-12-02 08:44:44,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-12-02 08:44:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-12-02 08:44:44,024 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-12-02 08:44:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2024-12-02 08:44:44,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2024-12-02 08:44:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:44:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2024-12-02 08:44:44,024 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2024-12-02 08:44:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 08:44:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 08:44:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 08:44:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 08:44:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 08:44:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2024-12-02 08:44:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2024-12-02 08:44:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __bad_percpu_size [2024-12-02 08:44:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2024-12-02 08:44:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2024-12-02 08:44:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 08:44:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 08:44:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2024-12-02 08:44:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2024-12-02 08:44:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2024-12-02 08:44:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2024-12-02 08:44:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_printk [2024-12-02 08:44:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_printk [2024-12-02 08:44:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-12-02 08:44:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-12-02 08:44:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-12-02 08:44:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-12-02 08:44:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2024-12-02 08:44:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2024-12-02 08:44:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2024-12-02 08:44:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2024-12-02 08:44:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2024-12-02 08:44:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2024-12-02 08:44:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2024-12-02 08:44:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2024-12-02 08:44:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-12-02 08:44:44,027 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2024-12-02 08:44:44,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-12-02 08:44:44,027 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2024-12-02 08:44:44,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2024-12-02 08:44:44,027 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-12-02 08:44:44,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2024-12-02 08:44:44,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2024-12-02 08:44:44,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2024-12-02 08:44:44,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 08:44:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 08:44:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 08:44:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 08:44:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 08:44:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 08:44:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 08:44:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 08:44:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 08:44:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 08:44:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 08:44:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 08:44:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-12-02 08:44:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-12-02 08:44:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2024-12-02 08:44:44,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2024-12-02 08:44:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2024-12-02 08:44:44,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2024-12-02 08:44:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:44:44,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:44:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2024-12-02 08:44:44,028 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2024-12-02 08:44:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-12-02 08:44:44,028 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-12-02 08:44:45,004 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:44:45,007 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:44:55,349 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 08:45:04,106 INFO L? ?]: Removed 3398 outVars from TransFormulas that were not future-live. [2024-12-02 08:45:04,106 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:45:04,146 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:45:04,146 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 08:45:04,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:45:04 BoogieIcfgContainer [2024-12-02 08:45:04,147 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:45:04,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:45:04,150 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:45:04,154 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:45:04,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:44:39" (1/3) ... [2024-12-02 08:45:04,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1999b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:45:04, skipping insertion in model container [2024-12-02 08:45:04,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:42" (2/3) ... [2024-12-02 08:45:04,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1999b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:45:04, skipping insertion in model container [2024-12-02 08:45:04,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:45:04" (3/3) ... [2024-12-02 08:45:04,156 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2024-12-02 08:45:04,170 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:45:04,173 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i that has 172 procedures, 2610 locations, 1 initial locations, 67 loop locations, and 1 error locations. [2024-12-02 08:45:04,270 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:45:04,281 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@689f36ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:45:04,281 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:45:04,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 2424 states, 1743 states have (on average 1.3866896156052781) internal successors, (2417), 1818 states have internal predecessors, (2417), 550 states have call successors, (550), 130 states have call predecessors, (550), 129 states have return successors, (545), 525 states have call predecessors, (545), 545 states have call successors, (545) [2024-12-02 08:45:04,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-12-02 08:45:04,307 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:04,307 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 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, 1, 1, 1] [2024-12-02 08:45:04,308 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:04,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:04,313 INFO L85 PathProgramCache]: Analyzing trace with hash 491360985, now seen corresponding path program 1 times [2024-12-02 08:45:04,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:45:04,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913342023] [2024-12-02 08:45:04,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:04,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:45:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2024-12-02 08:45:14,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:45:14,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913342023] [2024-12-02 08:45:14,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913342023] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:45:14,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191350854] [2024-12-02 08:45:14,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:14,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:45:14,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:45:14,343 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:45:14,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:45:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:24,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 5024 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:45:24,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:24,163 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2024-12-02 08:45:24,164 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:45:24,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191350854] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:45:24,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:45:24,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:45:24,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717097198] [2024-12-02 08:45:24,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:45:24,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:45:24,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:45:24,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:45:24,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:45:24,195 INFO L87 Difference]: Start difference. First operand has 2424 states, 1743 states have (on average 1.3866896156052781) internal successors, (2417), 1818 states have internal predecessors, (2417), 550 states have call successors, (550), 130 states have call predecessors, (550), 129 states have return successors, (545), 525 states have call predecessors, (545), 545 states have call successors, (545) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 08:45:24,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:24,377 INFO L93 Difference]: Finished difference Result 4843 states and 7138 transitions. [2024-12-02 08:45:24,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:45:24,379 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 226 [2024-12-02 08:45:24,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:24,406 INFO L225 Difference]: With dead ends: 4843 [2024-12-02 08:45:24,406 INFO L226 Difference]: Without dead ends: 2392 [2024-12-02 08:45:24,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:45:24,425 INFO L435 NwaCegarLoop]: 3499 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3499 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:45:24,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3499 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:45:24,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2024-12-02 08:45:24,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2392. [2024-12-02 08:45:24,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 1724 states have (on average 1.3776102088167053) internal successors, (2375), 1792 states have internal predecessors, (2375), 539 states have call successors, (539), 129 states have call predecessors, (539), 128 states have return successors, (538), 518 states have call predecessors, (538), 538 states have call successors, (538) [2024-12-02 08:45:24,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 3452 transitions. [2024-12-02 08:45:24,597 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 3452 transitions. Word has length 226 [2024-12-02 08:45:24,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:24,598 INFO L471 AbstractCegarLoop]: Abstraction has 2392 states and 3452 transitions. [2024-12-02 08:45:24,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 08:45:24,598 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 3452 transitions. [2024-12-02 08:45:24,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-12-02 08:45:24,603 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:24,603 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 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, 1, 1, 1] [2024-12-02 08:45:24,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:45:24,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:45:24,804 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:24,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:24,805 INFO L85 PathProgramCache]: Analyzing trace with hash 53286633, now seen corresponding path program 1 times [2024-12-02 08:45:24,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:45:24,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754038669] [2024-12-02 08:45:24,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:24,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:45:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:34,226 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2024-12-02 08:45:34,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:45:34,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754038669] [2024-12-02 08:45:34,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754038669] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:45:34,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:45:34,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:45:34,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100571648] [2024-12-02 08:45:34,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:45:34,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:45:34,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:45:34,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:45:34,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:45:34,230 INFO L87 Difference]: Start difference. First operand 2392 states and 3452 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:34,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:34,675 INFO L93 Difference]: Finished difference Result 6414 states and 9202 transitions. [2024-12-02 08:45:34,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:45:34,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 226 [2024-12-02 08:45:34,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:34,696 INFO L225 Difference]: With dead ends: 6414 [2024-12-02 08:45:34,696 INFO L226 Difference]: Without dead ends: 4064 [2024-12-02 08:45:34,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:45:34,703 INFO L435 NwaCegarLoop]: 3961 mSDtfsCounter, 2406 mSDsluCounter, 3362 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 7323 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:45:34,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2406 Valid, 7323 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:45:34,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4064 states. [2024-12-02 08:45:34,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4064 to 4059. [2024-12-02 08:45:34,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4059 states, 2940 states have (on average 1.375170068027211) internal successors, (4043), 3060 states have internal predecessors, (4043), 880 states have call successors, (880), 239 states have call predecessors, (880), 238 states have return successors, (879), 841 states have call predecessors, (879), 879 states have call successors, (879) [2024-12-02 08:45:34,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4059 states to 4059 states and 5802 transitions. [2024-12-02 08:45:34,821 INFO L78 Accepts]: Start accepts. Automaton has 4059 states and 5802 transitions. Word has length 226 [2024-12-02 08:45:34,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:34,822 INFO L471 AbstractCegarLoop]: Abstraction has 4059 states and 5802 transitions. [2024-12-02 08:45:34,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:34,822 INFO L276 IsEmpty]: Start isEmpty. Operand 4059 states and 5802 transitions. [2024-12-02 08:45:34,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-12-02 08:45:34,826 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:34,827 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:45:34,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:45:34,827 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:34,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:34,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1253000074, now seen corresponding path program 1 times [2024-12-02 08:45:34,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:45:34,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549976967] [2024-12-02 08:45:34,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:34,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:45:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:44,614 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2024-12-02 08:45:44,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:45:44,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549976967] [2024-12-02 08:45:44,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549976967] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:45:44,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:45:44,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:45:44,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075036696] [2024-12-02 08:45:44,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:45:44,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:45:44,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:45:44,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:45:44,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:45:44,620 INFO L87 Difference]: Start difference. First operand 4059 states and 5802 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 08:45:45,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:45,317 INFO L93 Difference]: Finished difference Result 11811 states and 16947 transitions. [2024-12-02 08:45:45,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:45:45,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 248 [2024-12-02 08:45:45,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:45,363 INFO L225 Difference]: With dead ends: 11811 [2024-12-02 08:45:45,363 INFO L226 Difference]: Without dead ends: 7794 [2024-12-02 08:45:45,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:45:45,380 INFO L435 NwaCegarLoop]: 4120 mSDtfsCounter, 3264 mSDsluCounter, 3350 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3264 SdHoareTripleChecker+Valid, 7470 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:45:45,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3264 Valid, 7470 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:45:45,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7794 states. [2024-12-02 08:45:45,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7794 to 7749. [2024-12-02 08:45:45,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7749 states, 5611 states have (on average 1.375155943682053) internal successors, (7716), 5854 states have internal predecessors, (7716), 1675 states have call successors, (1675), 463 states have call predecessors, (1675), 462 states have return successors, (1757), 1593 states have call predecessors, (1757), 1674 states have call successors, (1757) [2024-12-02 08:45:45,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7749 states to 7749 states and 11148 transitions. [2024-12-02 08:45:45,670 INFO L78 Accepts]: Start accepts. Automaton has 7749 states and 11148 transitions. Word has length 248 [2024-12-02 08:45:45,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:45,670 INFO L471 AbstractCegarLoop]: Abstraction has 7749 states and 11148 transitions. [2024-12-02 08:45:45,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 08:45:45,671 INFO L276 IsEmpty]: Start isEmpty. Operand 7749 states and 11148 transitions. [2024-12-02 08:45:45,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-12-02 08:45:45,676 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:45,676 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:45:45,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:45:45,677 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:45,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:45,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1295791487, now seen corresponding path program 1 times [2024-12-02 08:45:45,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:45:45,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504138456] [2024-12-02 08:45:45,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:45,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:45:55,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:55,635 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2024-12-02 08:45:55,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:45:55,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504138456] [2024-12-02 08:45:55,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504138456] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:45:55,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:45:55,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:45:55,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270959273] [2024-12-02 08:45:55,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:45:55,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:45:55,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:45:55,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:45:55,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:45:55,637 INFO L87 Difference]: Start difference. First operand 7749 states and 11148 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 08:45:56,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:56,039 INFO L93 Difference]: Finished difference Result 15456 states and 22239 transitions. [2024-12-02 08:45:56,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:45:56,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 290 [2024-12-02 08:45:56,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:56,083 INFO L225 Difference]: With dead ends: 15456 [2024-12-02 08:45:56,083 INFO L226 Difference]: Without dead ends: 7749 [2024-12-02 08:45:56,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:45:56,109 INFO L435 NwaCegarLoop]: 3450 mSDtfsCounter, 3448 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3448 SdHoareTripleChecker+Valid, 3450 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:45:56,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3448 Valid, 3450 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:45:56,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7749 states. [2024-12-02 08:45:56,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7749 to 7749. [2024-12-02 08:45:56,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7749 states, 5611 states have (on average 1.3744430582783818) internal successors, (7712), 5854 states have internal predecessors, (7712), 1675 states have call successors, (1675), 463 states have call predecessors, (1675), 462 states have return successors, (1757), 1593 states have call predecessors, (1757), 1674 states have call successors, (1757) [2024-12-02 08:45:56,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7749 states to 7749 states and 11144 transitions. [2024-12-02 08:45:56,419 INFO L78 Accepts]: Start accepts. Automaton has 7749 states and 11144 transitions. Word has length 290 [2024-12-02 08:45:56,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:56,420 INFO L471 AbstractCegarLoop]: Abstraction has 7749 states and 11144 transitions. [2024-12-02 08:45:56,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 08:45:56,420 INFO L276 IsEmpty]: Start isEmpty. Operand 7749 states and 11144 transitions. [2024-12-02 08:45:56,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-12-02 08:45:56,424 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:56,425 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:45:56,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:45:56,425 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:56,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:56,425 INFO L85 PathProgramCache]: Analyzing trace with hash -755015615, now seen corresponding path program 1 times [2024-12-02 08:45:56,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:45:56,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232257824] [2024-12-02 08:45:56,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:56,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:46:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:07,677 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2024-12-02 08:46:07,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:46:07,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232257824] [2024-12-02 08:46:07,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232257824] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:46:07,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:46:07,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:46:07,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936113032] [2024-12-02 08:46:07,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:46:07,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:46:07,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:46:07,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:46:07,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:46:07,681 INFO L87 Difference]: Start difference. First operand 7749 states and 11144 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-12-02 08:46:07,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:46:07,987 INFO L93 Difference]: Finished difference Result 7756 states and 11154 transitions. [2024-12-02 08:46:07,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:46:07,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 307 [2024-12-02 08:46:07,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:46:08,053 INFO L225 Difference]: With dead ends: 7756 [2024-12-02 08:46:08,054 INFO L226 Difference]: Without dead ends: 7753 [2024-12-02 08:46:08,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:46:08,062 INFO L435 NwaCegarLoop]: 3450 mSDtfsCounter, 0 mSDsluCounter, 3445 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6895 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:46:08,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6895 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:46:08,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7753 states. [2024-12-02 08:46:08,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7753 to 7753. [2024-12-02 08:46:08,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7753 states, 5615 states have (on average 1.3741763134461265) internal successors, (7716), 5858 states have internal predecessors, (7716), 1675 states have call successors, (1675), 463 states have call predecessors, (1675), 462 states have return successors, (1757), 1593 states have call predecessors, (1757), 1674 states have call successors, (1757) [2024-12-02 08:46:08,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7753 states to 7753 states and 11148 transitions. [2024-12-02 08:46:08,498 INFO L78 Accepts]: Start accepts. Automaton has 7753 states and 11148 transitions. Word has length 307 [2024-12-02 08:46:08,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:46:08,499 INFO L471 AbstractCegarLoop]: Abstraction has 7753 states and 11148 transitions. [2024-12-02 08:46:08,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-12-02 08:46:08,500 INFO L276 IsEmpty]: Start isEmpty. Operand 7753 states and 11148 transitions. [2024-12-02 08:46:08,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-12-02 08:46:08,506 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:08,506 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:46:08,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:46:08,506 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:08,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:08,507 INFO L85 PathProgramCache]: Analyzing trace with hash -320599898, now seen corresponding path program 1 times [2024-12-02 08:46:08,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:46:08,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284997734] [2024-12-02 08:46:08,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:08,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:46:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:19,770 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2024-12-02 08:46:19,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:46:19,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284997734] [2024-12-02 08:46:19,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284997734] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:46:19,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:46:19,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:46:19,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424939184] [2024-12-02 08:46:19,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:46:19,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:46:19,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:46:19,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:46:19,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:46:19,772 INFO L87 Difference]: Start difference. First operand 7753 states and 11148 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-12-02 08:46:20,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:46:20,222 INFO L93 Difference]: Finished difference Result 19752 states and 28723 transitions. [2024-12-02 08:46:20,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:46:20,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 309 [2024-12-02 08:46:20,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:46:20,276 INFO L225 Difference]: With dead ends: 19752 [2024-12-02 08:46:20,276 INFO L226 Difference]: Without dead ends: 12041 [2024-12-02 08:46:20,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:46:20,309 INFO L435 NwaCegarLoop]: 4547 mSDtfsCounter, 2938 mSDsluCounter, 6483 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2938 SdHoareTripleChecker+Valid, 11030 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:46:20,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2938 Valid, 11030 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:46:20,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12041 states. [2024-12-02 08:46:20,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12041 to 11841. [2024-12-02 08:46:20,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11841 states, 8713 states have (on average 1.3795478021347412) internal successors, (12020), 9080 states have internal predecessors, (12020), 2385 states have call successors, (2385), 747 states have call predecessors, (2385), 742 states have return successors, (2589), 2243 states have call predecessors, (2589), 2384 states have call successors, (2589) [2024-12-02 08:46:20,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11841 states to 11841 states and 16994 transitions. [2024-12-02 08:46:20,715 INFO L78 Accepts]: Start accepts. Automaton has 11841 states and 16994 transitions. Word has length 309 [2024-12-02 08:46:20,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:46:20,715 INFO L471 AbstractCegarLoop]: Abstraction has 11841 states and 16994 transitions. [2024-12-02 08:46:20,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-12-02 08:46:20,716 INFO L276 IsEmpty]: Start isEmpty. Operand 11841 states and 16994 transitions. [2024-12-02 08:46:20,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-12-02 08:46:20,725 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:20,725 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:46:20,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:46:20,725 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:20,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:20,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1320973137, now seen corresponding path program 1 times [2024-12-02 08:46:20,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:46:20,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442735787] [2024-12-02 08:46:20,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:20,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:46:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:33,104 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 967 trivial. 0 not checked. [2024-12-02 08:46:33,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:46:33,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442735787] [2024-12-02 08:46:33,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442735787] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:46:33,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016377271] [2024-12-02 08:46:33,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:33,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:46:33,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:46:33,107 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:46:33,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:46:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:45,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 5990 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 08:46:45,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:46:45,491 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 829 trivial. 0 not checked. [2024-12-02 08:46:45,492 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:46:45,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016377271] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:46:45,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:46:45,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-12-02 08:46:45,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462172181] [2024-12-02 08:46:45,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:46:45,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:46:45,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:46:45,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:46:45,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:46:45,494 INFO L87 Difference]: Start difference. First operand 11841 states and 16994 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2024-12-02 08:46:49,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:46:50,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:46:50,552 INFO L93 Difference]: Finished difference Result 23650 states and 33941 transitions. [2024-12-02 08:46:50,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:46:50,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 399 [2024-12-02 08:46:50,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:46:50,606 INFO L225 Difference]: With dead ends: 23650 [2024-12-02 08:46:50,606 INFO L226 Difference]: Without dead ends: 11819 [2024-12-02 08:46:50,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:46:50,641 INFO L435 NwaCegarLoop]: 3449 mSDtfsCounter, 1 mSDsluCounter, 10330 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13779 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:46:50,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13779 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2024-12-02 08:46:50,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11819 states. [2024-12-02 08:46:50,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11819 to 11813. [2024-12-02 08:46:50,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11813 states, 8695 states have (on average 1.3796434732604945) internal successors, (11996), 9060 states have internal predecessors, (11996), 2377 states have call successors, (2377), 745 states have call predecessors, (2377), 740 states have return successors, (2581), 2233 states have call predecessors, (2581), 2376 states have call successors, (2581) [2024-12-02 08:46:51,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11813 states to 11813 states and 16954 transitions. [2024-12-02 08:46:51,020 INFO L78 Accepts]: Start accepts. Automaton has 11813 states and 16954 transitions. Word has length 399 [2024-12-02 08:46:51,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:46:51,021 INFO L471 AbstractCegarLoop]: Abstraction has 11813 states and 16954 transitions. [2024-12-02 08:46:51,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2024-12-02 08:46:51,021 INFO L276 IsEmpty]: Start isEmpty. Operand 11813 states and 16954 transitions. [2024-12-02 08:46:51,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-12-02 08:46:51,031 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:51,031 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:46:51,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:46:51,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:46:51,232 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:51,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:51,233 INFO L85 PathProgramCache]: Analyzing trace with hash -2036545997, now seen corresponding path program 1 times [2024-12-02 08:46:51,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:46:51,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579755288] [2024-12-02 08:46:51,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:51,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:02,222 INFO L134 CoverageAnalysis]: Checked inductivity of 989 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2024-12-02 08:47:02,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:02,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579755288] [2024-12-02 08:47:02,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579755288] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:02,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:02,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:47:02,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917854732] [2024-12-02 08:47:02,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:02,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:47:02,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:02,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:47:02,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:47:02,224 INFO L87 Difference]: Start difference. First operand 11813 states and 16954 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2024-12-02 08:47:06,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:47:07,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:07,485 INFO L93 Difference]: Finished difference Result 28908 states and 41439 transitions. [2024-12-02 08:47:07,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:47:07,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 415 [2024-12-02 08:47:07,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:07,565 INFO L225 Difference]: With dead ends: 28908 [2024-12-02 08:47:07,566 INFO L226 Difference]: Without dead ends: 17137 [2024-12-02 08:47:07,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:47:07,604 INFO L435 NwaCegarLoop]: 5001 mSDtfsCounter, 2427 mSDsluCounter, 3374 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 8375 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:07,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2427 Valid, 8375 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2024-12-02 08:47:07,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17137 states. [2024-12-02 08:47:08,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17137 to 17072. [2024-12-02 08:47:08,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17072 states, 12594 states have (on average 1.379545815467683) internal successors, (17374), 13132 states have internal predecessors, (17374), 3389 states have call successors, (3389), 1095 states have call predecessors, (3389), 1088 states have return successors, (3689), 3175 states have call predecessors, (3689), 3388 states have call successors, (3689) [2024-12-02 08:47:08,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17072 states to 17072 states and 24452 transitions. [2024-12-02 08:47:08,127 INFO L78 Accepts]: Start accepts. Automaton has 17072 states and 24452 transitions. Word has length 415 [2024-12-02 08:47:08,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:08,128 INFO L471 AbstractCegarLoop]: Abstraction has 17072 states and 24452 transitions. [2024-12-02 08:47:08,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2024-12-02 08:47:08,128 INFO L276 IsEmpty]: Start isEmpty. Operand 17072 states and 24452 transitions. [2024-12-02 08:47:08,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-12-02 08:47:08,138 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:08,139 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:47:08,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:47:08,139 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:08,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:08,139 INFO L85 PathProgramCache]: Analyzing trace with hash -340008459, now seen corresponding path program 1 times [2024-12-02 08:47:08,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:08,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402273974] [2024-12-02 08:47:08,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:08,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:21,130 INFO L134 CoverageAnalysis]: Checked inductivity of 989 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked. [2024-12-02 08:47:21,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:21,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402273974] [2024-12-02 08:47:21,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402273974] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:47:21,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327670977] [2024-12-02 08:47:21,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:21,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:47:21,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:47:21,133 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:47:21,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:47:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:33,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 6114 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 08:47:33,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:47:34,476 INFO L134 CoverageAnalysis]: Checked inductivity of 989 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 986 trivial. 0 not checked. [2024-12-02 08:47:34,476 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:47:34,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327670977] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:34,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:47:34,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-12-02 08:47:34,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367560761] [2024-12-02 08:47:34,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:34,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:47:34,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:34,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:47:34,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:47:34,478 INFO L87 Difference]: Start difference. First operand 17072 states and 24452 transitions. Second operand has 6 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (47), 4 states have call predecessors, (47), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-12-02 08:47:35,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:35,429 INFO L93 Difference]: Finished difference Result 34205 states and 49493 transitions. [2024-12-02 08:47:35,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:47:35,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (47), 4 states have call predecessors, (47), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 414 [2024-12-02 08:47:35,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:35,504 INFO L225 Difference]: With dead ends: 34205 [2024-12-02 08:47:35,505 INFO L226 Difference]: Without dead ends: 17175 [2024-12-02 08:47:35,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:47:35,641 INFO L435 NwaCegarLoop]: 3447 mSDtfsCounter, 22 mSDsluCounter, 13761 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 17208 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:35,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 17208 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:47:35,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17175 states. [2024-12-02 08:47:36,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17175 to 17162. [2024-12-02 08:47:36,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17162 states, 12672 states have (on average 1.3781565656565657) internal successors, (17464), 13210 states have internal predecessors, (17464), 3389 states have call successors, (3389), 1107 states have call predecessors, (3389), 1100 states have return successors, (3689), 3175 states have call predecessors, (3689), 3388 states have call successors, (3689) [2024-12-02 08:47:36,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17162 states to 17162 states and 24542 transitions. [2024-12-02 08:47:36,412 INFO L78 Accepts]: Start accepts. Automaton has 17162 states and 24542 transitions. Word has length 414 [2024-12-02 08:47:36,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:36,413 INFO L471 AbstractCegarLoop]: Abstraction has 17162 states and 24542 transitions. [2024-12-02 08:47:36,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (47), 4 states have call predecessors, (47), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-12-02 08:47:36,413 INFO L276 IsEmpty]: Start isEmpty. Operand 17162 states and 24542 transitions. [2024-12-02 08:47:36,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2024-12-02 08:47:36,424 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:36,424 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:47:36,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:47:36,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-12-02 08:47:36,625 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:36,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:36,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1195263832, now seen corresponding path program 1 times [2024-12-02 08:47:36,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:36,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032079821] [2024-12-02 08:47:36,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:36,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:49,286 INFO L134 CoverageAnalysis]: Checked inductivity of 989 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked. [2024-12-02 08:47:49,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:49,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032079821] [2024-12-02 08:47:49,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032079821] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:47:49,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918364569] [2024-12-02 08:47:49,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:49,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:47:49,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:47:49,288 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:47:49,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:48:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:02,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 6114 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 08:48:02,228 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:48:02,508 INFO L134 CoverageAnalysis]: Checked inductivity of 989 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2024-12-02 08:48:02,508 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:48:02,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918364569] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:48:02,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:48:02,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2024-12-02 08:48:02,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261674927] [2024-12-02 08:48:02,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:48:02,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:48:02,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:48:02,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:48:02,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:48:02,511 INFO L87 Difference]: Start difference. First operand 17162 states and 24542 transitions. Second operand has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (40), 4 states have call predecessors, (40), 2 states have call successors, (40) [2024-12-02 08:48:03,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:48:03,178 INFO L93 Difference]: Finished difference Result 34350 states and 49223 transitions. [2024-12-02 08:48:03,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:48:03,178 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (40), 4 states have call predecessors, (40), 2 states have call successors, (40) Word has length 416 [2024-12-02 08:48:03,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:48:03,254 INFO L225 Difference]: With dead ends: 34350 [2024-12-02 08:48:03,254 INFO L226 Difference]: Without dead ends: 17230 [2024-12-02 08:48:03,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:48:03,302 INFO L435 NwaCegarLoop]: 3441 mSDtfsCounter, 0 mSDsluCounter, 17201 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20642 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:48:03,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20642 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:48:03,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17230 states. [2024-12-02 08:48:03,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17230 to 17190. [2024-12-02 08:48:03,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17190 states, 12692 states have (on average 1.3775606681374093) internal successors, (17484), 13230 states have internal predecessors, (17484), 3389 states have call successors, (3389), 1107 states have call predecessors, (3389), 1108 states have return successors, (3745), 3183 states have call predecessors, (3745), 3388 states have call successors, (3745) [2024-12-02 08:48:03,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17190 states to 17190 states and 24618 transitions. [2024-12-02 08:48:03,925 INFO L78 Accepts]: Start accepts. Automaton has 17190 states and 24618 transitions. Word has length 416 [2024-12-02 08:48:03,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:48:03,925 INFO L471 AbstractCegarLoop]: Abstraction has 17190 states and 24618 transitions. [2024-12-02 08:48:03,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (40), 4 states have call predecessors, (40), 2 states have call successors, (40) [2024-12-02 08:48:03,925 INFO L276 IsEmpty]: Start isEmpty. Operand 17190 states and 24618 transitions. [2024-12-02 08:48:03,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2024-12-02 08:48:03,932 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:48:03,933 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:48:03,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 08:48:04,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 08:48:04,133 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:48:04,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:48:04,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1588746213, now seen corresponding path program 1 times [2024-12-02 08:48:04,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:48:04,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339832880] [2024-12-02 08:48:04,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:04,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:48:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:15,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 3 proven. 42 refuted. 0 times theorem prover too weak. 1044 trivial. 0 not checked. [2024-12-02 08:48:15,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:48:15,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339832880] [2024-12-02 08:48:15,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339832880] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:48:15,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378494135] [2024-12-02 08:48:15,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:15,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:48:15,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:48:15,102 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:48:15,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:51:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:01,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 6181 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 08:51:01,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:51:02,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 497 proven. 0 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2024-12-02 08:51:02,358 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:51:02,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378494135] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:51:02,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:51:02,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2024-12-02 08:51:02,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31902098] [2024-12-02 08:51:02,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:51:02,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:51:02,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:51:02,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:51:02,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:51:02,361 INFO L87 Difference]: Start difference. First operand 17190 states and 24618 transitions. Second operand has 6 states, 5 states have (on average 32.4) internal successors, (162), 6 states have internal predecessors, (162), 3 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2024-12-02 08:51:03,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:51:03,495 INFO L93 Difference]: Finished difference Result 34366 states and 49220 transitions. [2024-12-02 08:51:03,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:51:03,496 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 32.4) internal successors, (162), 6 states have internal predecessors, (162), 3 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 436 [2024-12-02 08:51:03,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:51:03,569 INFO L225 Difference]: With dead ends: 34366 [2024-12-02 08:51:03,569 INFO L226 Difference]: Without dead ends: 17191 [2024-12-02 08:51:03,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:51:03,616 INFO L435 NwaCegarLoop]: 3433 mSDtfsCounter, 4 mSDsluCounter, 13712 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 17145 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:51:03,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 17145 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:51:03,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17191 states. [2024-12-02 08:51:04,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17191 to 17191. [2024-12-02 08:51:04,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17191 states, 12693 states have (on average 1.3775309225557393) internal successors, (17485), 13231 states have internal predecessors, (17485), 3389 states have call successors, (3389), 1107 states have call predecessors, (3389), 1108 states have return successors, (3745), 3183 states have call predecessors, (3745), 3388 states have call successors, (3745) [2024-12-02 08:51:04,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17191 states to 17191 states and 24619 transitions. [2024-12-02 08:51:04,096 INFO L78 Accepts]: Start accepts. Automaton has 17191 states and 24619 transitions. Word has length 436 [2024-12-02 08:51:04,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:51:04,097 INFO L471 AbstractCegarLoop]: Abstraction has 17191 states and 24619 transitions. [2024-12-02 08:51:04,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 32.4) internal successors, (162), 6 states have internal predecessors, (162), 3 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2024-12-02 08:51:04,097 INFO L276 IsEmpty]: Start isEmpty. Operand 17191 states and 24619 transitions. [2024-12-02 08:51:04,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2024-12-02 08:51:04,104 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:51:04,104 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:51:04,304 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2024-12-02 08:51:04,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2024-12-02 08:51:04,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:51:04,417 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:51:04,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:51:04,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1989556395, now seen corresponding path program 1 times [2024-12-02 08:51:04,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:51:04,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613979619] [2024-12-02 08:51:04,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:04,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:51:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:14,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 3 proven. 61 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2024-12-02 08:51:14,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:51:14,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613979619] [2024-12-02 08:51:14,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613979619] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:51:14,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772203778] [2024-12-02 08:51:14,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:14,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:51:14,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:51:14,947 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:51:14,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 08:52:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:52:54,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 6286 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 08:52:54,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:52:55,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 472 proven. 1 refuted. 0 times theorem prover too weak. 686 trivial. 0 not checked. [2024-12-02 08:52:55,010 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:53:00,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 3 proven. 61 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2024-12-02 08:53:00,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772203778] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:53:00,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:53:00,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-12-02 08:53:00,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008755737] [2024-12-02 08:53:00,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:53:00,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:53:00,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:00,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:53:00,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:53:00,970 INFO L87 Difference]: Start difference. First operand 17191 states and 24619 transitions. Second operand has 13 states, 11 states have (on average 20.09090909090909) internal successors, (221), 13 states have internal predecessors, (221), 4 states have call successors, (86), 2 states have call predecessors, (86), 6 states have return successors, (81), 4 states have call predecessors, (81), 4 states have call successors, (81) [2024-12-02 08:53:03,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:03,571 INFO L93 Difference]: Finished difference Result 34379 states and 49235 transitions. [2024-12-02 08:53:03,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:53:03,572 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 20.09090909090909) internal successors, (221), 13 states have internal predecessors, (221), 4 states have call successors, (86), 2 states have call predecessors, (86), 6 states have return successors, (81), 4 states have call predecessors, (81), 4 states have call successors, (81) Word has length 443 [2024-12-02 08:53:03,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:03,637 INFO L225 Difference]: With dead ends: 34379 [2024-12-02 08:53:03,637 INFO L226 Difference]: Without dead ends: 17203 [2024-12-02 08:53:03,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 895 GetRequests, 879 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:53:03,680 INFO L435 NwaCegarLoop]: 3435 mSDtfsCounter, 9 mSDsluCounter, 30869 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 34304 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:03,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 34304 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 08:53:03,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17203 states. [2024-12-02 08:53:04,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17203 to 17203. [2024-12-02 08:53:04,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17203 states, 12702 states have (on average 1.377342150842387) internal successors, (17495), 13240 states have internal predecessors, (17495), 3390 states have call successors, (3390), 1109 states have call predecessors, (3390), 1110 states have return successors, (3746), 3184 states have call predecessors, (3746), 3389 states have call successors, (3746) [2024-12-02 08:53:04,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17203 states to 17203 states and 24631 transitions. [2024-12-02 08:53:04,106 INFO L78 Accepts]: Start accepts. Automaton has 17203 states and 24631 transitions. Word has length 443 [2024-12-02 08:53:04,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:04,107 INFO L471 AbstractCegarLoop]: Abstraction has 17203 states and 24631 transitions. [2024-12-02 08:53:04,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 20.09090909090909) internal successors, (221), 13 states have internal predecessors, (221), 4 states have call successors, (86), 2 states have call predecessors, (86), 6 states have return successors, (81), 4 states have call predecessors, (81), 4 states have call successors, (81) [2024-12-02 08:53:04,107 INFO L276 IsEmpty]: Start isEmpty. Operand 17203 states and 24631 transitions. [2024-12-02 08:53:04,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2024-12-02 08:53:04,112 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:04,113 INFO L218 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:04,313 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forcibly destroying the process [2024-12-02 08:53:04,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 137 [2024-12-02 08:53:04,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:53:04,424 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:04,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:04,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1118957861, now seen corresponding path program 2 times [2024-12-02 08:53:04,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:04,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843216341] [2024-12-02 08:53:04,425 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:53:04,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:13,969 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 08:53:13,969 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 08:53:15,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1278 backedges. 3 proven. 93 refuted. 0 times theorem prover too weak. 1182 trivial. 0 not checked. [2024-12-02 08:53:15,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:15,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843216341] [2024-12-02 08:53:15,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843216341] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:53:15,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679354251] [2024-12-02 08:53:15,862 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:53:15,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:53:15,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:53:15,866 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:53:15,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9928a8e4-fedb-4ffd-b769-201cf706bee2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process