./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837c7a23-b0bc-435b-a130-cec704872412/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837c7a23-b0bc-435b-a130-cec704872412/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837c7a23-b0bc-435b-a130-cec704872412/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837c7a23-b0bc-435b-a130-cec704872412/bin/utaipan-verify-NcY6lQBIFX/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_837c7a23-b0bc-435b-a130-cec704872412/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837c7a23-b0bc-435b-a130-cec704872412/bin/utaipan-verify-NcY6lQBIFX --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-cf1a783 [2023-11-12 00:41:55,556 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:41:55,631 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837c7a23-b0bc-435b-a130-cec704872412/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:41:55,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:41:55,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:41:55,668 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:41:55,669 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:41:55,669 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:41:55,670 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:41:55,671 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:41:55,672 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:41:55,672 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:41:55,673 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:41:55,673 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:41:55,674 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:41:55,674 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:41:55,675 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:41:55,675 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:41:55,676 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:41:55,677 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:41:55,677 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:41:55,684 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:41:55,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:41:55,686 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:41:55,686 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:41:55,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:41:55,687 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:41:55,687 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:41:55,688 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:41:55,688 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:41:55,689 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:41:55,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:41:55,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:41:55,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:41:55,691 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:41:55,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:41:55,691 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:41:55,692 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:41:55,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:41:55,692 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:41:55,693 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:41:55,694 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:41:55,694 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_837c7a23-b0bc-435b-a130-cec704872412/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837c7a23-b0bc-435b-a130-cec704872412/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 [2023-11-12 00:41:55,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:41:56,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:41:56,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:41:56,020 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:41:56,020 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:41:56,022 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837c7a23-b0bc-435b-a130-cec704872412/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2023-11-12 00:41:59,200 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:42:00,009 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:42:00,011 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837c7a23-b0bc-435b-a130-cec704872412/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2023-11-12 00:42:00,089 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837c7a23-b0bc-435b-a130-cec704872412/bin/utaipan-verify-NcY6lQBIFX/data/88686614e/a80ba7f637594a43b1e50246b3867914/FLAG833fa073a [2023-11-12 00:42:00,111 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837c7a23-b0bc-435b-a130-cec704872412/bin/utaipan-verify-NcY6lQBIFX/data/88686614e/a80ba7f637594a43b1e50246b3867914 [2023-11-12 00:42:00,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:42:00,122 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:42:00,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:42:00,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:42:00,132 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:42:00,133 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:42:00" (1/1) ... [2023-11-12 00:42:00,134 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab1242a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:00, skipping insertion in model container [2023-11-12 00:42:00,135 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:42:00" (1/1) ... [2023-11-12 00:42:00,417 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:42:05,436 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_837c7a23-b0bc-435b-a130-cec704872412/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2023-11-12 00:42:05,441 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_837c7a23-b0bc-435b-a130-cec704872412/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2023-11-12 00:42:05,441 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_837c7a23-b0bc-435b-a130-cec704872412/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2023-11-12 00:42:05,442 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_837c7a23-b0bc-435b-a130-cec704872412/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2023-11-12 00:42:05,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:42:05,579 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:42:05,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [6259] [2023-11-12 00:42:05,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [6266] [2023-11-12 00:42:05,731 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] [2023-11-12 00:42:05,732 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] [2023-11-12 00:42:05,732 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [6932] [2023-11-12 00:42:05,760 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] [2023-11-12 00:42:05,763 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] [2023-11-12 00:42:05,763 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] [2023-11-12 00:42:05,764 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] [2023-11-12 00:42:05,766 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8195] [2023-11-12 00:42:05,768 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] [2023-11-12 00:42:05,770 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] [2023-11-12 00:42:05,771 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] [2023-11-12 00:42:05,775 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] [2023-11-12 00:42:05,777 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] [2023-11-12 00:42:05,778 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] [2023-11-12 00:42:05,779 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] [2023-11-12 00:42:05,852 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] [2023-11-12 00:42:05,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8950] [2023-11-12 00:42:05,889 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9560] [2023-11-12 00:42:05,892 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [9607] [2023-11-12 00:42:05,893 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)skb->data) [9619] [2023-11-12 00:42:05,895 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)next_rxd) [9680] [2023-11-12 00:42:05,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10291] [2023-11-12 00:42:06,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [11930] [2023-11-12 00:42:06,048 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] [2023-11-12 00:42:06,050 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] [2023-11-12 00:42:06,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12125] [2023-11-12 00:42:06,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [12129] [2023-11-12 00:42:06,186 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_837c7a23-b0bc-435b-a130-cec704872412/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2023-11-12 00:42:06,188 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_837c7a23-b0bc-435b-a130-cec704872412/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2023-11-12 00:42:06,189 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837c7a23-b0bc-435b-a130-cec704872412/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2023-11-12 00:42:06,190 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_837c7a23-b0bc-435b-a130-cec704872412/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2023-11-12 00:42:06,205 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:42:06,685 WARN L672 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:42:06,686 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:42:06,691 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:42:06,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:06 WrapperNode [2023-11-12 00:42:06,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:42:06,693 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:42:06,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:42:06,694 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:42:06,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:06" (1/1) ... [2023-11-12 00:42:06,903 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:06" (1/1) ... [2023-11-12 00:42:07,261 INFO L138 Inliner]: procedures = 642, calls = 3578, calls flagged for inlining = 319, calls inlined = 283, statements flattened = 8901 [2023-11-12 00:42:07,262 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:42:07,263 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:42:07,263 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:42:07,263 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:42:07,275 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:06" (1/1) ... [2023-11-12 00:42:07,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:06" (1/1) ... [2023-11-12 00:42:07,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:06" (1/1) ... [2023-11-12 00:42:07,330 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:06" (1/1) ... [2023-11-12 00:42:07,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:06" (1/1) ... [2023-11-12 00:42:07,649 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:06" (1/1) ... [2023-11-12 00:42:07,699 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:06" (1/1) ... [2023-11-12 00:42:07,736 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:06" (1/1) ... [2023-11-12 00:42:07,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:42:07,795 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:42:07,795 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:42:07,796 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:42:07,797 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:06" (1/1) ... [2023-11-12 00:42:07,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:42:07,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837c7a23-b0bc-435b-a130-cec704872412/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:42:07,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837c7a23-b0bc-435b-a130-cec704872412/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:42:07,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837c7a23-b0bc-435b-a130-cec704872412/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:42:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2023-11-12 00:42:07,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2023-11-12 00:42:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-12 00:42:07,962 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-12 00:42:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:42:07,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:42:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2023-11-12 00:42:07,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2023-11-12 00:42:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 00:42:07,963 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 00:42:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:42:07,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:42:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-11-12 00:42:07,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-11-12 00:42:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_function_pointers_vf [2023-11-12 00:42:07,964 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_function_pointers_vf [2023-11-12 00:42:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2023-11-12 00:42:07,965 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2023-11-12 00:42:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-12 00:42:07,965 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-12 00:42:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 00:42:07,965 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 00:42:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-12 00:42:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-12 00:42:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_alloc_rx_buffers [2023-11-12 00:42:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_alloc_rx_buffers [2023-11-12 00:42:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-12 00:42:07,967 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-12 00:42:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_mac_addr_vf [2023-11-12 00:42:07,967 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_mac_addr_vf [2023-11-12 00:42:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_close [2023-11-12 00:42:07,968 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_close [2023-11-12 00:42:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 00:42:07,968 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 00:42:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 00:42:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2023-11-12 00:42:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2023-11-12 00:42:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_maybe_stop_tx [2023-11-12 00:42:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_maybe_stop_tx [2023-11-12 00:42:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-12 00:42:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-12 00:42:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:42:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:42:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-12 00:42:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-12 00:42:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-12 00:42:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-12 00:42:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_irq [2023-11-12 00:42:07,971 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_irq [2023-11-12 00:42:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:42:07,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:42:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-12 00:42:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-12 00:42:07,972 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_suspend [2023-11-12 00:42:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_suspend [2023-11-12 00:42:07,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:42:07,972 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-12 00:42:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-12 00:42:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-12 00:42:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-12 00:42:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-11-12 00:42:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-11-12 00:42:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2023-11-12 00:42:07,974 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2023-11-12 00:42:07,974 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 00:42:07,974 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 00:42:07,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:42:07,974 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_assign_vector [2023-11-12 00:42:07,975 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_assign_vector [2023-11-12 00:42:07,975 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 00:42:07,975 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 00:42:07,975 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-12 00:42:07,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-12 00:42:07,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:42:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_desc_unused [2023-11-12 00:42:07,976 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_desc_unused [2023-11-12 00:42:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:42:07,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:42:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-12 00:42:07,977 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-12 00:42:07,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:42:07,977 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_netpoll [2023-11-12 00:42:07,977 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_netpoll [2023-11-12 00:42:07,977 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 00:42:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 00:42:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset_interrupt_capability [2023-11-12 00:42:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset_interrupt_capability [2023-11-12 00:42:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2023-11-12 00:42:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2023-11-12 00:42:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:42:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:42:07,979 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_msg_vf [2023-11-12 00:42:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_msg_vf [2023-11-12 00:42:07,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-12 00:42:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-12 00:42:07,980 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2023-11-12 00:42:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2023-11-12 00:42:07,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_igbvf_exit_module_19_2 [2023-11-12 00:42:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_igbvf_exit_module_19_2 [2023-11-12 00:42:07,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 00:42:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 00:42:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_tx_resources [2023-11-12 00:42:07,981 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_tx_resources [2023-11-12 00:42:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2023-11-12 00:42:07,981 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2023-11-12 00:42:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-12 00:42:07,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-12 00:42:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-11-12 00:42:07,982 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-11-12 00:42:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-12 00:42:07,982 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-12 00:42:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2023-11-12 00:42:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2023-11-12 00:42:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2023-11-12 00:42:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2023-11-12 00:42:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:42:07,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:42:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:42:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-12 00:42:07,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-12 00:42:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 00:42:07,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 00:42:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-12 00:42:07,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-12 00:42:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-12 00:42:07,985 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-12 00:42:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure_msix [2023-11-12 00:42:07,985 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure_msix [2023-11-12 00:42:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:42:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_open [2023-11-12 00:42:07,986 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_open [2023-11-12 00:42:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-11-12 00:42:07,986 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-11-12 00:42:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:42:07,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:42:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:42:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:42:07,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:42:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2023-11-12 00:42:07,988 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2023-11-12 00:42:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_nway_reset [2023-11-12 00:42:07,988 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_nway_reset [2023-11-12 00:42:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset [2023-11-12 00:42:07,988 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset [2023-11-12 00:42:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2023-11-12 00:42:07,989 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2023-11-12 00:42:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-12 00:42:07,989 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-12 00:42:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_enable [2023-11-12 00:42:07,989 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_enable [2023-11-12 00:42:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-12 00:42:07,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-12 00:42:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-11-12 00:42:07,990 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-11-12 00:42:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reinit_locked [2023-11-12 00:42:07,990 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reinit_locked [2023-11-12 00:42:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:42:07,991 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:42:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-12 00:42:07,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-12 00:42:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_update_stats [2023-11-12 00:42:07,991 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_update_stats [2023-11-12 00:42:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_vlan_rx_add_vid [2023-11-12 00:42:07,992 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_vlan_rx_add_vid [2023-11-12 00:42:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-12 00:42:07,992 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-12 00:42:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-12 00:42:07,992 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-12 00:42:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_bit_vf [2023-11-12 00:42:07,993 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_bit_vf [2023-11-12 00:42:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2023-11-12 00:42:07,993 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2023-11-12 00:42:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:42:07,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:42:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2023-11-12 00:42:07,994 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2023-11-12 00:42:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2023-11-12 00:42:07,994 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2023-11-12 00:42:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-12 00:42:07,995 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-12 00:42:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:42:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:42:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:42:07,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:42:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-12 00:42:07,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-12 00:42:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2023-11-12 00:42:07,996 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2023-11-12 00:42:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2023-11-12 00:42:07,996 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2023-11-12 00:42:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-12 00:42:07,997 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-12 00:42:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-11-12 00:42:07,997 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-11-12 00:42:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_down [2023-11-12 00:42:07,997 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_down [2023-11-12 00:42:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-12 00:42:07,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-12 00:42:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_regs_len [2023-11-12 00:42:07,998 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_regs_len [2023-11-12 00:42:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_irq [2023-11-12 00:42:07,998 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_irq [2023-11-12 00:42:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2023-11-12 00:42:07,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2023-11-12 00:42:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-12 00:42:07,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-12 00:42:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2023-11-12 00:42:07,999 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2023-11-12 00:42:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-12 00:42:08,000 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-12 00:42:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:42:08,000 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:42:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 00:42:08,000 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 00:42:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_ring [2023-11-12 00:42:08,001 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_ring [2023-11-12 00:42:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_v2p_mailbox [2023-11-12 00:42:08,001 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_v2p_mailbox [2023-11-12 00:42:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-11-12 00:42:08,001 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-11-12 00:42:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-12 00:42:08,002 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-12 00:42:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-12 00:42:08,002 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-12 00:42:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:42:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-12 00:42:08,003 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-12 00:42:08,003 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_remove [2023-11-12 00:42:08,003 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_remove [2023-11-12 00:42:08,003 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2023-11-12 00:42:08,003 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2023-11-12 00:42:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-12 00:42:08,004 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-12 00:42:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_disable [2023-11-12 00:42:08,004 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_disable [2023-11-12 00:42:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:42:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure [2023-11-12 00:42:08,005 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure [2023-11-12 00:42:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_rx_resources [2023-11-12 00:42:08,005 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_rx_resources [2023-11-12 00:42:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_rx_ring [2023-11-12 00:42:08,005 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_rx_ring [2023-11-12 00:42:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2023-11-12 00:42:08,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2023-11-12 00:42:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_obtain_mbx_lock_vf [2023-11-12 00:42:08,006 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_obtain_mbx_lock_vf [2023-11-12 00:42:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2023-11-12 00:42:08,006 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2023-11-12 00:42:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:42:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:42:08,007 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:42:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 00:42:08,007 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 00:42:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_ack_vf [2023-11-12 00:42:08,008 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_ack_vf [2023-11-12 00:42:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 00:42:08,008 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 00:42:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2023-11-12 00:42:08,008 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2023-11-12 00:42:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 00:42:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 00:42:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2023-11-12 00:42:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2023-11-12 00:42:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_request_irq [2023-11-12 00:42:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_request_irq [2023-11-12 00:42:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_resume [2023-11-12 00:42:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_resume [2023-11-12 00:42:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:42:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:42:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-12 00:42:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-12 00:42:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-12 00:42:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-12 00:42:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_put_txbuf [2023-11-12 00:42:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_put_txbuf [2023-11-12 00:42:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2023-11-12 00:42:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2023-11-12 00:42:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2023-11-12 00:42:08,012 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2023-11-12 00:42:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2023-11-12 00:42:08,012 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2023-11-12 00:42:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-12 00:42:08,012 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-12 00:42:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 00:42:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 00:42:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-12 00:42:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-12 00:42:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_shutdown [2023-11-12 00:42:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_shutdown [2023-11-12 00:42:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-12 00:42:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-12 00:42:08,014 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2023-11-12 00:42:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2023-11-12 00:42:08,014 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_tx_resources [2023-11-12 00:42:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_tx_resources [2023-11-12 00:42:08,014 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:42:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:42:08,015 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_eeprom_len [2023-11-12 00:42:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_eeprom_len [2023-11-12 00:42:08,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:42:08,015 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2023-11-12 00:42:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2023-11-12 00:42:08,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:42:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:42:08,016 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2023-11-12 00:42:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2023-11-12 00:42:08,016 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2023-11-12 00:42:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2023-11-12 00:42:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-12 00:42:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-12 00:42:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-12 00:42:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-12 00:42:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2023-11-12 00:42:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2023-11-12 00:42:08,018 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_io_resume [2023-11-12 00:42:08,018 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_io_resume [2023-11-12 00:42:08,018 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_rx_resources [2023-11-12 00:42:08,018 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_rx_resources [2023-11-12 00:42:08,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2023-11-12 00:42:08,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2023-11-12 00:42:08,019 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_set_multi [2023-11-12 00:42:08,019 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_set_multi [2023-11-12 00:42:08,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:42:08,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:42:08,019 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_tx_timeout [2023-11-12 00:42:08,019 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_tx_timeout [2023-11-12 00:42:08,020 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-11-12 00:42:08,020 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-11-12 00:42:08,020 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-12 00:42:08,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-12 00:42:08,020 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2023-11-12 00:42:08,020 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2023-11-12 00:42:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2023-11-12 00:42:08,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2023-11-12 00:42:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-12 00:42:08,021 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-12 00:42:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_up [2023-11-12 00:42:08,021 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_up [2023-11-12 00:42:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-12 00:42:08,022 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-12 00:42:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:42:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2023-11-12 00:42:08,022 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2023-11-12 00:42:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:42:08,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:42:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-12 00:42:09,396 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:42:09,403 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:42:09,778 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:42:18,872 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 00:42:19,149 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:42:23,894 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:42:23,894 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:42:23,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:42:23 BoogieIcfgContainer [2023-11-12 00:42:23,905 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:42:23,910 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:42:23,910 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:42:23,913 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:42:23,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:42:00" (1/3) ... [2023-11-12 00:42:23,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d1c53e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:42:23, skipping insertion in model container [2023-11-12 00:42:23,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:06" (2/3) ... [2023-11-12 00:42:23,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d1c53e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:42:23, skipping insertion in model container [2023-11-12 00:42:23,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:42:23" (3/3) ... [2023-11-12 00:42:23,917 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2023-11-12 00:42:23,938 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:42:23,939 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:42:24,040 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:42:24,049 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;@71125b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:42:24,050 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:42:24,065 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) [2023-11-12 00:42:24,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-11-12 00:42:24,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:42:24,116 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] [2023-11-12 00:42:24,117 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] === [2023-11-12 00:42:24,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:42:24,123 INFO L85 PathProgramCache]: Analyzing trace with hash 443407486, now seen corresponding path program 1 times [2023-11-12 00:42:24,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:42:24,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372512219] [2023-11-12 00:42:24,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:42:24,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:42:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:42:25,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2256 trivial. 0 not checked. [2023-11-12 00:42:25,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:42:25,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372512219] [2023-11-12 00:42:25,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372512219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:42:25,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:42:25,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:42:25,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931958944] [2023-11-12 00:42:25,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:42:25,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:42:25,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:42:25,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:42:25,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:42:25,584 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) [2023-11-12 00:42:31,569 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 [] [2023-11-12 00:42:34,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:42:35,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:42:37,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:42:37,168 INFO L93 Difference]: Finished difference Result 6857 states and 9809 transitions. [2023-11-12 00:42:37,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:42:37,171 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 [2023-11-12 00:42:37,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:42:37,253 INFO L225 Difference]: With dead ends: 6857 [2023-11-12 00:42:37,254 INFO L226 Difference]: Without dead ends: 4547 [2023-11-12 00:42:37,277 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 [2023-11-12 00:42:37,283 INFO L413 NwaCegarLoop]: 2892 mSDtfsCounter, 3186 mSDsluCounter, 2842 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s 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, 11.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:42:37,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3186 Valid, 5734 Invalid, 952 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 943 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2023-11-12 00:42:37,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4547 states. [2023-11-12 00:42:37,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4547 to 4547. [2023-11-12 00:42:37,682 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) [2023-11-12 00:42:37,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4547 states to 4547 states and 6475 transitions. [2023-11-12 00:42:37,730 INFO L78 Accepts]: Start accepts. Automaton has 4547 states and 6475 transitions. Word has length 261 [2023-11-12 00:42:37,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:42:37,737 INFO L495 AbstractCegarLoop]: Abstraction has 4547 states and 6475 transitions. [2023-11-12 00:42:37,737 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) [2023-11-12 00:42:37,738 INFO L276 IsEmpty]: Start isEmpty. Operand 4547 states and 6475 transitions. [2023-11-12 00:42:37,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-11-12 00:42:37,759 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:42:37,760 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] [2023-11-12 00:42:37,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:42:37,761 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] === [2023-11-12 00:42:37,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:42:37,762 INFO L85 PathProgramCache]: Analyzing trace with hash 654048900, now seen corresponding path program 1 times [2023-11-12 00:42:37,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:42:37,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414362836] [2023-11-12 00:42:37,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:42:37,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:42:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:42:39,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2441 trivial. 0 not checked. [2023-11-12 00:42:39,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:42:39,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414362836] [2023-11-12 00:42:39,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414362836] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:42:39,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:42:39,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:42:39,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002688447] [2023-11-12 00:42:39,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:42:39,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:42:39,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:42:39,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:42:39,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:42:39,065 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)