./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:46:37,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:46:37,354 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:46:37,360 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:46:37,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:46:37,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:46:37,387 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:46:37,388 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:46:37,388 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:46:37,389 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:46:37,389 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:46:37,390 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:46:37,391 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:46:37,391 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:46:37,392 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:46:37,392 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:46:37,393 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:46:37,393 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:46:37,394 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:46:37,394 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:46:37,395 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:46:37,396 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:46:37,397 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:46:37,397 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:46:37,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:46:37,398 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:46:37,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:46:37,399 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:46:37,400 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:46:37,400 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:46:37,401 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:46:37,401 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:46:37,402 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:46:37,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:46:37,403 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:46:37,403 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:46:37,404 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:46:37,404 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:46:37,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:46:37,405 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:46:37,405 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:46:37,405 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:46:37,406 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 [2023-11-19 04:46:37,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:46:37,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:46:37,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:46:37,739 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:46:37,739 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:46:37,741 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2023-11-19 04:46:40,820 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:46:41,586 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:46:41,588 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2023-11-19 04:46:41,677 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/bin/utaipan-verify-t7M7D8N6sZ/data/8ea657b5b/b1404f6b25c94129ad0b68ca753d145f/FLAGb1bd9a77f [2023-11-19 04:46:41,698 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/bin/utaipan-verify-t7M7D8N6sZ/data/8ea657b5b/b1404f6b25c94129ad0b68ca753d145f [2023-11-19 04:46:41,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:46:41,711 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:46:41,713 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:46:41,716 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:46:41,723 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:46:41,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:46:41" (1/1) ... [2023-11-19 04:46:41,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d8697b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:41, skipping insertion in model container [2023-11-19 04:46:41,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:46:41" (1/1) ... [2023-11-19 04:46:41,994 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:46:47,211 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2023-11-19 04:46:47,216 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2023-11-19 04:46:47,216 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2023-11-19 04:46:47,217 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2023-11-19 04:46:47,244 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:46:47,306 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:46:47,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [6259] [2023-11-19 04:46:47,410 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [6266] [2023-11-19 04:46:47,442 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"); [6918] [2023-11-19 04:46:47,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [6925] [2023-11-19 04:46:47,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [6932] [2023-11-19 04:46:47,469 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)); [8007-8008] [2023-11-19 04:46:47,471 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/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [8049-8050] [2023-11-19 04:46:47,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [8055-8057] [2023-11-19 04:46:47,472 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)); [8077] [2023-11-19 04:46:47,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8195] [2023-11-19 04:46:47,476 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/mm.h"), "i" (488), "i" (12UL)); [8252-8253] [2023-11-19 04:46:47,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ (" addl %1,%0\n adcl $0xffff,%0": "=r" (sum): "r" (sum << 16), "0" (sum & 4294901760U)); [8313] [2023-11-19 04:46:47,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ (" addl %1, %0\n adcl %2, %0\n adcl %3, %0\n adcl $0, %0\n": "=r" (sum): "g" (daddr), "g" (saddr), "g" (((int )len + (int )proto) << 8), "0" (sum)); [8321-8322] [2023-11-19 04:46:47,481 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/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [8397-8398] [2023-11-19 04:46:47,483 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/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [8431-8432] [2023-11-19 04:46:47,484 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/asm-generic/dma-mapping-common.h"), "i" (79), "i" (12UL)); [8472-8473] [2023-11-19 04:46:47,485 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/asm-generic/dma-mapping-common.h"), "i" (91), "i" (12UL)); [8501-8502] [2023-11-19 04:46:47,566 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/netdevice.h"), "i" (502), "i" (12UL)); [8943-8944] [2023-11-19 04:46:47,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8950] [2023-11-19 04:46:47,594 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9560] [2023-11-19 04:46:47,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [9607] [2023-11-19 04:46:47,597 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)skb->data) [9619] [2023-11-19 04:46:47,599 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)next_rxd) [9680] [2023-11-19 04:46:47,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10291] [2023-11-19 04:46:47,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [11930] [2023-11-19 04:46:47,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/ethernet/intel/igbvf/netdev.c"), "i" (2086), "i" (12UL)); [11974-11975] [2023-11-19 04:46:47,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/ethernet/intel/igbvf/netdev.c"), "i" (2109), "i" (12UL)); [12010-12011] [2023-11-19 04:46:47,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12125] [2023-11-19 04:46:47,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [12129] [2023-11-19 04:46:47,831 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2023-11-19 04:46:47,832 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2023-11-19 04:46:47,833 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2023-11-19 04:46:47,834 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2023-11-19 04:46:47,852 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:46:48,343 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:46:48,344 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:46:48,351 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:46:48,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:48 WrapperNode [2023-11-19 04:46:48,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:46:48,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:46:48,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:46:48,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:46:48,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:48" (1/1) ... [2023-11-19 04:46:48,525 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:48" (1/1) ... [2023-11-19 04:46:48,889 INFO L138 Inliner]: procedures = 642, calls = 3578, calls flagged for inlining = 319, calls inlined = 283, statements flattened = 8901 [2023-11-19 04:46:48,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:46:48,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:46:48,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:46:48,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:46:48,901 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:48" (1/1) ... [2023-11-19 04:46:48,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:48" (1/1) ... [2023-11-19 04:46:48,955 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:48" (1/1) ... [2023-11-19 04:46:48,956 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:48" (1/1) ... [2023-11-19 04:46:49,147 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:48" (1/1) ... [2023-11-19 04:46:49,175 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:48" (1/1) ... [2023-11-19 04:46:49,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:48" (1/1) ... [2023-11-19 04:46:49,355 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:48" (1/1) ... [2023-11-19 04:46:49,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:46:49,431 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:46:49,431 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:46:49,432 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:46:49,433 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:48" (1/1) ... [2023-11-19 04:46:49,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:46:49,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:46:49,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:46:49,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c23e63-f222-4968-895d-afaa5d0ee67e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:46:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2023-11-19 04:46:49,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2023-11-19 04:46:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 04:46:49,539 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 04:46:49,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:46:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:46:49,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2023-11-19 04:46:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2023-11-19 04:46:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 04:46:49,541 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 04:46:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:46:49,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:46:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-11-19 04:46:49,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-11-19 04:46:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_function_pointers_vf [2023-11-19 04:46:49,542 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_function_pointers_vf [2023-11-19 04:46:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2023-11-19 04:46:49,542 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2023-11-19 04:46:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-19 04:46:49,543 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-19 04:46:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 04:46:49,543 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 04:46:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 04:46:49,544 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 04:46:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_alloc_rx_buffers [2023-11-19 04:46:49,545 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_alloc_rx_buffers [2023-11-19 04:46:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-19 04:46:49,546 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-19 04:46:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_mac_addr_vf [2023-11-19 04:46:49,547 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_mac_addr_vf [2023-11-19 04:46:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_close [2023-11-19 04:46:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_close [2023-11-19 04:46:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 04:46:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 04:46:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 04:46:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2023-11-19 04:46:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2023-11-19 04:46:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_maybe_stop_tx [2023-11-19 04:46:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_maybe_stop_tx [2023-11-19 04:46:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-19 04:46:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-19 04:46:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 04:46:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 04:46:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 04:46:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 04:46:49,551 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-19 04:46:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-19 04:46:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_irq [2023-11-19 04:46:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_irq [2023-11-19 04:46:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:46:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:46:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-19 04:46:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-19 04:46:49,554 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_suspend [2023-11-19 04:46:49,554 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_suspend [2023-11-19 04:46:49,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:46:49,554 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-19 04:46:49,554 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-19 04:46:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-19 04:46:49,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-19 04:46:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-11-19 04:46:49,555 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-11-19 04:46:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2023-11-19 04:46:49,556 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2023-11-19 04:46:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 04:46:49,556 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 04:46:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:46:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_assign_vector [2023-11-19 04:46:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_assign_vector [2023-11-19 04:46:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 04:46:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 04:46:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 04:46:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 04:46:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:46:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_desc_unused [2023-11-19 04:46:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_desc_unused [2023-11-19 04:46:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 04:46:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 04:46:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 04:46:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 04:46:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:46:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_netpoll [2023-11-19 04:46:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_netpoll [2023-11-19 04:46:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 04:46:49,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 04:46:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset_interrupt_capability [2023-11-19 04:46:49,562 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset_interrupt_capability [2023-11-19 04:46:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2023-11-19 04:46:49,562 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2023-11-19 04:46:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:46:49,563 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:46:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_msg_vf [2023-11-19 04:46:49,563 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_msg_vf [2023-11-19 04:46:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 04:46:49,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 04:46:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2023-11-19 04:46:49,565 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2023-11-19 04:46:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_igbvf_exit_module_19_2 [2023-11-19 04:46:49,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_igbvf_exit_module_19_2 [2023-11-19 04:46:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 04:46:49,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 04:46:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_tx_resources [2023-11-19 04:46:49,567 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_tx_resources [2023-11-19 04:46:49,568 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2023-11-19 04:46:49,568 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2023-11-19 04:46:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 04:46:49,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 04:46:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-11-19 04:46:49,569 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-11-19 04:46:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 04:46:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 04:46:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2023-11-19 04:46:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2023-11-19 04:46:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2023-11-19 04:46:49,575 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2023-11-19 04:46:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:46:49,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:46:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:46:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 04:46:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 04:46:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 04:46:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 04:46:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-19 04:46:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-19 04:46:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-19 04:46:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-19 04:46:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure_msix [2023-11-19 04:46:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure_msix [2023-11-19 04:46:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:46:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_open [2023-11-19 04:46:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_open [2023-11-19 04:46:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-11-19 04:46:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-11-19 04:46:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 04:46:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 04:46:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:46:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:46:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:46:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2023-11-19 04:46:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2023-11-19 04:46:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_nway_reset [2023-11-19 04:46:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_nway_reset [2023-11-19 04:46:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset [2023-11-19 04:46:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset [2023-11-19 04:46:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2023-11-19 04:46:49,579 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2023-11-19 04:46:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-19 04:46:49,579 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-19 04:46:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_enable [2023-11-19 04:46:49,579 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_enable [2023-11-19 04:46:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-19 04:46:49,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-19 04:46:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-11-19 04:46:49,580 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-11-19 04:46:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reinit_locked [2023-11-19 04:46:49,580 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reinit_locked [2023-11-19 04:46:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:46:49,580 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:46:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 04:46:49,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 04:46:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_update_stats [2023-11-19 04:46:49,581 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_update_stats [2023-11-19 04:46:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_vlan_rx_add_vid [2023-11-19 04:46:49,581 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_vlan_rx_add_vid [2023-11-19 04:46:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 04:46:49,581 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 04:46:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 04:46:49,581 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 04:46:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_bit_vf [2023-11-19 04:46:49,582 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_bit_vf [2023-11-19 04:46:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2023-11-19 04:46:49,582 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2023-11-19 04:46:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:46:49,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:46:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2023-11-19 04:46:49,582 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2023-11-19 04:46:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2023-11-19 04:46:49,583 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2023-11-19 04:46:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 04:46:49,583 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 04:46:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:46:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:46:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:46:49,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:46:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-19 04:46:49,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-19 04:46:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2023-11-19 04:46:49,584 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2023-11-19 04:46:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2023-11-19 04:46:49,584 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2023-11-19 04:46:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-19 04:46:49,585 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-19 04:46:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-11-19 04:46:49,585 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-11-19 04:46:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_down [2023-11-19 04:46:49,585 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_down [2023-11-19 04:46:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 04:46:49,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 04:46:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_regs_len [2023-11-19 04:46:49,586 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_regs_len [2023-11-19 04:46:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_irq [2023-11-19 04:46:49,586 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_irq [2023-11-19 04:46:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2023-11-19 04:46:49,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2023-11-19 04:46:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-19 04:46:49,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-19 04:46:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2023-11-19 04:46:49,587 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2023-11-19 04:46:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-19 04:46:49,587 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-19 04:46:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:46:49,587 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:46:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 04:46:49,588 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 04:46:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_ring [2023-11-19 04:46:49,588 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_ring [2023-11-19 04:46:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_v2p_mailbox [2023-11-19 04:46:49,588 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_v2p_mailbox [2023-11-19 04:46:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-11-19 04:46:49,589 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-11-19 04:46:49,589 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-19 04:46:49,589 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-19 04:46:49,589 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 04:46:49,589 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 04:46:49,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:46:49,589 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 04:46:49,590 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 04:46:49,590 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_remove [2023-11-19 04:46:49,590 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_remove [2023-11-19 04:46:49,590 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2023-11-19 04:46:49,590 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2023-11-19 04:46:49,590 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 04:46:49,590 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 04:46:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_disable [2023-11-19 04:46:49,591 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_disable [2023-11-19 04:46:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:46:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure [2023-11-19 04:46:49,591 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure [2023-11-19 04:46:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_rx_resources [2023-11-19 04:46:49,591 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_rx_resources [2023-11-19 04:46:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_rx_ring [2023-11-19 04:46:49,592 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_rx_ring [2023-11-19 04:46:49,592 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2023-11-19 04:46:49,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2023-11-19 04:46:49,592 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_obtain_mbx_lock_vf [2023-11-19 04:46:49,592 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_obtain_mbx_lock_vf [2023-11-19 04:46:49,592 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2023-11-19 04:46:49,592 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2023-11-19 04:46:49,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:46:49,593 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:46:49,593 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:46:49,593 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 04:46:49,593 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 04:46:49,593 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_ack_vf [2023-11-19 04:46:49,593 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_ack_vf [2023-11-19 04:46:49,593 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 04:46:49,593 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 04:46:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2023-11-19 04:46:49,594 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2023-11-19 04:46:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 04:46:49,594 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 04:46:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2023-11-19 04:46:49,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2023-11-19 04:46:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_request_irq [2023-11-19 04:46:49,594 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_request_irq [2023-11-19 04:46:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_resume [2023-11-19 04:46:49,595 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_resume [2023-11-19 04:46:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 04:46:49,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 04:46:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-19 04:46:49,595 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-19 04:46:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 04:46:49,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 04:46:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_put_txbuf [2023-11-19 04:46:49,595 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_put_txbuf [2023-11-19 04:46:49,596 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2023-11-19 04:46:49,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2023-11-19 04:46:49,596 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2023-11-19 04:46:49,596 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2023-11-19 04:46:49,596 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2023-11-19 04:46:49,596 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2023-11-19 04:46:49,596 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-19 04:46:49,596 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-19 04:46:49,596 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 04:46:49,597 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 04:46:49,597 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-19 04:46:49,597 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-19 04:46:49,597 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_shutdown [2023-11-19 04:46:49,597 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_shutdown [2023-11-19 04:46:49,597 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 04:46:49,597 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 04:46:49,597 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2023-11-19 04:46:49,597 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2023-11-19 04:46:49,598 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_tx_resources [2023-11-19 04:46:49,598 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_tx_resources [2023-11-19 04:46:49,598 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:46:49,598 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:46:49,598 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_eeprom_len [2023-11-19 04:46:49,598 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_eeprom_len [2023-11-19 04:46:49,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:46:49,598 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2023-11-19 04:46:49,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2023-11-19 04:46:49,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:46:49,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:46:49,599 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2023-11-19 04:46:49,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2023-11-19 04:46:49,599 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2023-11-19 04:46:49,599 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2023-11-19 04:46:49,599 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-19 04:46:49,599 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-19 04:46:49,599 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-19 04:46:49,600 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-19 04:46:49,600 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2023-11-19 04:46:49,600 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2023-11-19 04:46:49,600 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_io_resume [2023-11-19 04:46:49,600 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_io_resume [2023-11-19 04:46:49,600 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_rx_resources [2023-11-19 04:46:49,600 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_rx_resources [2023-11-19 04:46:49,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2023-11-19 04:46:49,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2023-11-19 04:46:49,601 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_set_multi [2023-11-19 04:46:49,601 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_set_multi [2023-11-19 04:46:49,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 04:46:49,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 04:46:49,601 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_tx_timeout [2023-11-19 04:46:49,601 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_tx_timeout [2023-11-19 04:46:49,601 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-11-19 04:46:49,602 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-11-19 04:46:49,602 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-19 04:46:49,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-19 04:46:49,602 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2023-11-19 04:46:49,602 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2023-11-19 04:46:49,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2023-11-19 04:46:49,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2023-11-19 04:46:49,602 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-19 04:46:49,603 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-19 04:46:49,603 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_up [2023-11-19 04:46:49,603 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_up [2023-11-19 04:46:49,603 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 04:46:49,603 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 04:46:49,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:46:49,603 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2023-11-19 04:46:49,603 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2023-11-19 04:46:49,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 04:46:49,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 04:46:49,604 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-19 04:46:50,926 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:46:50,936 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:46:51,454 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:47:00,111 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 04:47:00,559 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:47:05,791 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:47:05,792 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:47:05,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:05 BoogieIcfgContainer [2023-11-19 04:47:05,822 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:47:05,828 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:47:05,828 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:47:05,832 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:47:05,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:46:41" (1/3) ... [2023-11-19 04:47:05,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ef400f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:05, skipping insertion in model container [2023-11-19 04:47:05,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:48" (2/3) ... [2023-11-19 04:47:05,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ef400f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:05, skipping insertion in model container [2023-11-19 04:47:05,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:05" (3/3) ... [2023-11-19 04:47:05,839 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2023-11-19 04:47:05,865 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:47:05,865 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:47:06,006 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:47:06,019 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1694abe0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:47:06,020 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:47:06,040 INFO L276 IsEmpty]: Start isEmpty. Operand has 2345 states, 1379 states have (on average 1.2726613488034808) internal successors, (1755), 1420 states have internal predecessors, (1755), 802 states have call successors, (802), 164 states have call predecessors, (802), 163 states have return successors, (794), 780 states have call predecessors, (794), 794 states have call successors, (794) [2023-11-19 04:47:06,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-11-19 04:47:06,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:06,098 INFO L195 NwaCegarLoop]: trace histogram [25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:06,099 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:47:06,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:06,108 INFO L85 PathProgramCache]: Analyzing trace with hash 443407486, now seen corresponding path program 1 times [2023-11-19 04:47:06,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:06,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000867730] [2023-11-19 04:47:06,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:06,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:07,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2256 trivial. 0 not checked. [2023-11-19 04:47:07,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:07,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000867730] [2023-11-19 04:47:07,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000867730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:07,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:07,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:47:07,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481672838] [2023-11-19 04:47:07,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:07,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:47:07,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:47:07,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:47:07,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:47:07,741 INFO L87 Difference]: Start difference. First operand has 2345 states, 1379 states have (on average 1.2726613488034808) internal successors, (1755), 1420 states have internal predecessors, (1755), 802 states have call successors, (802), 164 states have call predecessors, (802), 163 states have return successors, (794), 780 states have call predecessors, (794), 794 states have call successors, (794) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2023-11-19 04:47:09,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:47:12,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:47:14,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:47:18,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:47:19,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:19,448 INFO L93 Difference]: Finished difference Result 6857 states and 9809 transitions. [2023-11-19 04:47:19,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:47:19,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 261 [2023-11-19 04:47:19,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:19,548 INFO L225 Difference]: With dead ends: 6857 [2023-11-19 04:47:19,548 INFO L226 Difference]: Without dead ends: 4547 [2023-11-19 04:47:19,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:47:19,577 INFO L413 NwaCegarLoop]: 2892 mSDtfsCounter, 3186 mSDsluCounter, 2842 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 5734 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:19,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3186 Valid, 5734 Invalid, 952 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 943 Invalid, 2 Unknown, 0 Unchecked, 11.2s Time] [2023-11-19 04:47:19,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4547 states. [2023-11-19 04:47:19,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4547 to 4547. [2023-11-19 04:47:19,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4547 states, 2696 states have (on average 1.2696587537091988) internal successors, (3423), 2775 states have internal predecessors, (3423), 1528 states have call successors, (1528), 323 states have call predecessors, (1528), 322 states have return successors, (1524), 1496 states have call predecessors, (1524), 1524 states have call successors, (1524) [2023-11-19 04:47:20,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4547 states to 4547 states and 6475 transitions. [2023-11-19 04:47:20,043 INFO L78 Accepts]: Start accepts. Automaton has 4547 states and 6475 transitions. Word has length 261 [2023-11-19 04:47:20,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:20,046 INFO L495 AbstractCegarLoop]: Abstraction has 4547 states and 6475 transitions. [2023-11-19 04:47:20,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2023-11-19 04:47:20,046 INFO L276 IsEmpty]: Start isEmpty. Operand 4547 states and 6475 transitions. [2023-11-19 04:47:20,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-11-19 04:47:20,068 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:20,068 INFO L195 NwaCegarLoop]: trace histogram [28, 24, 24, 24, 24, 24, 24, 4, 4, 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] [2023-11-19 04:47:20,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:47:20,069 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:47:20,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:20,070 INFO L85 PathProgramCache]: Analyzing trace with hash 654048900, now seen corresponding path program 1 times [2023-11-19 04:47:20,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:20,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524245263] [2023-11-19 04:47:20,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:20,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:21,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2441 trivial. 0 not checked. [2023-11-19 04:47:21,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:21,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524245263] [2023-11-19 04:47:21,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524245263] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:21,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:21,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:47:21,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032943016] [2023-11-19 04:47:21,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:21,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:47:21,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:47:21,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:47:21,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:47:21,606 INFO L87 Difference]: Start difference. First operand 4547 states and 6475 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-11-19 04:47:24,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []