./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 30e01a73 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_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/bin/utaipan-verify-mE87zJ7Ire/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_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/bin/utaipan-verify-mE87zJ7Ire --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-30e01a7 [2023-11-23 20:35:38,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:35:38,682 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:35:38,690 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:35:38,691 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:35:38,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:35:38,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:35:38,744 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:35:38,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:35:38,750 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:35:38,751 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:35:38,751 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:35:38,752 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:35:38,753 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:35:38,754 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:35:38,754 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:35:38,754 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:35:38,755 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:35:38,755 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:35:38,756 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:35:38,758 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:35:38,758 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:35:38,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:35:38,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:35:38,761 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:35:38,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:35:38,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:35:38,771 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:35:38,772 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:35:38,772 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:35:38,773 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:35:38,773 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:35:38,774 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:35:38,774 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:35:38,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:38,775 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:35:38,775 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:35:38,775 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:35:38,775 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:35:38,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:35:38,776 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:35:38,776 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:35:38,777 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:35:38,777 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:35:38,777 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_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 [2023-11-23 20:35:39,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:35:39,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:35:39,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:35:39,182 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:35:39,183 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:35:39,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2023-11-23 20:35:42,255 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:35:43,082 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:35:43,083 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2023-11-23 20:35:43,155 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/bin/utaipan-verify-mE87zJ7Ire/data/8219ade7f/d893cacff0334aab987ad1d22820a173/FLAGd8dcfdc04 [2023-11-23 20:35:43,173 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/bin/utaipan-verify-mE87zJ7Ire/data/8219ade7f/d893cacff0334aab987ad1d22820a173 [2023-11-23 20:35:43,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:35:43,180 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:35:43,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:43,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:35:43,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:35:43,189 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:43" (1/1) ... [2023-11-23 20:35:43,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54b79e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:43, skipping insertion in model container [2023-11-23 20:35:43,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:43" (1/1) ... [2023-11-23 20:35:43,467 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:35:48,424 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_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2023-11-23 20:35:48,428 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_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2023-11-23 20:35:48,436 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_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2023-11-23 20:35:48,437 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_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2023-11-23 20:35:48,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:48,570 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:35:48,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [6259] [2023-11-23 20:35:48,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [6266] [2023-11-23 20:35:48,759 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] [2023-11-23 20:35:48,759 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] [2023-11-23 20:35:48,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [6932] [2023-11-23 20:35:48,790 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] [2023-11-23 20:35:48,793 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] [2023-11-23 20:35:48,793 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] [2023-11-23 20:35:48,794 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] [2023-11-23 20:35:48,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8195] [2023-11-23 20:35:48,798 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] [2023-11-23 20:35:48,800 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] [2023-11-23 20:35:48,801 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] [2023-11-23 20:35:48,805 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] [2023-11-23 20:35:48,806 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] [2023-11-23 20:35:48,808 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] [2023-11-23 20:35:48,809 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] [2023-11-23 20:35:48,823 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] [2023-11-23 20:35:48,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8950] [2023-11-23 20:35:48,865 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9560] [2023-11-23 20:35:48,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [9607] [2023-11-23 20:35:48,869 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)skb->data) [9619] [2023-11-23 20:35:48,871 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)next_rxd) [9680] [2023-11-23 20:35:49,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10291] [2023-11-23 20:35:49,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [11930] [2023-11-23 20:35:49,085 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] [2023-11-23 20:35:49,087 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] [2023-11-23 20:35:49,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12125] [2023-11-23 20:35:49,092 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [12129] [2023-11-23 20:35:49,195 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2023-11-23 20:35:49,196 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2023-11-23 20:35:49,197 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2023-11-23 20:35:49,198 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_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2023-11-23 20:35:49,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:49,750 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:49,750 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:49,759 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:35:49,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:49 WrapperNode [2023-11-23 20:35:49,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:49,762 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:49,763 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:35:49,764 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:35:49,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:49" (1/1) ... [2023-11-23 20:35:49,921 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:49" (1/1) ... [2023-11-23 20:35:50,301 INFO L138 Inliner]: procedures = 642, calls = 3578, calls flagged for inlining = 319, calls inlined = 283, statements flattened = 8901 [2023-11-23 20:35:50,302 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:50,303 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:35:50,303 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:35:50,303 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:35:50,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:49" (1/1) ... [2023-11-23 20:35:50,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:49" (1/1) ... [2023-11-23 20:35:50,388 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:49" (1/1) ... [2023-11-23 20:35:50,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:49" (1/1) ... [2023-11-23 20:35:50,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:49" (1/1) ... [2023-11-23 20:35:50,730 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:49" (1/1) ... [2023-11-23 20:35:50,784 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:49" (1/1) ... [2023-11-23 20:35:50,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:49" (1/1) ... [2023-11-23 20:35:50,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:35:50,886 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:35:50,886 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:35:50,886 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:35:50,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:49" (1/1) ... [2023-11-23 20:35:50,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:50,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:50,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:35:50,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0ebf8e-b3f5-405b-b6af-3fc3ad819193/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:35:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2023-11-23 20:35:50,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2023-11-23 20:35:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 20:35:50,963 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 20:35:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 20:35:50,964 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 20:35:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2023-11-23 20:35:50,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2023-11-23 20:35:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 20:35:50,964 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 20:35:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:35:50,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:35:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-11-23 20:35:50,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-11-23 20:35:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_function_pointers_vf [2023-11-23 20:35:50,965 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_function_pointers_vf [2023-11-23 20:35:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2023-11-23 20:35:50,965 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2023-11-23 20:35:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-23 20:35:50,965 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-23 20:35:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 20:35:50,966 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 20:35:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 20:35:50,966 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 20:35:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_alloc_rx_buffers [2023-11-23 20:35:50,966 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_alloc_rx_buffers [2023-11-23 20:35:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-23 20:35:50,966 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-23 20:35:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_mac_addr_vf [2023-11-23 20:35:50,967 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_mac_addr_vf [2023-11-23 20:35:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_close [2023-11-23 20:35:50,967 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_close [2023-11-23 20:35:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 20:35:50,967 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 20:35:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 20:35:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2023-11-23 20:35:50,967 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2023-11-23 20:35:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_maybe_stop_tx [2023-11-23 20:35:50,968 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_maybe_stop_tx [2023-11-23 20:35:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-23 20:35:50,968 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-23 20:35:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 20:35:50,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 20:35:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 20:35:50,968 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 20:35:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-23 20:35:50,968 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-23 20:35:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_irq [2023-11-23 20:35:50,969 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_irq [2023-11-23 20:35:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 20:35:50,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 20:35:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-23 20:35:50,969 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-23 20:35:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_suspend [2023-11-23 20:35:50,969 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_suspend [2023-11-23 20:35:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:35:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-23 20:35:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-23 20:35:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-23 20:35:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-23 20:35:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-11-23 20:35:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-11-23 20:35:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2023-11-23 20:35:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2023-11-23 20:35:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 20:35:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 20:35:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:35:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_assign_vector [2023-11-23 20:35:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_assign_vector [2023-11-23 20:35:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 20:35:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 20:35:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 20:35:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 20:35:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:35:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_desc_unused [2023-11-23 20:35:50,972 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_desc_unused [2023-11-23 20:35:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 20:35:50,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 20:35:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 20:35:50,972 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 20:35:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:35:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_netpoll [2023-11-23 20:35:50,973 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_netpoll [2023-11-23 20:35:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 20:35:50,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 20:35:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset_interrupt_capability [2023-11-23 20:35:50,973 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset_interrupt_capability [2023-11-23 20:35:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2023-11-23 20:35:50,973 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2023-11-23 20:35:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 20:35:50,973 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 20:35:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_msg_vf [2023-11-23 20:35:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_msg_vf [2023-11-23 20:35:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-23 20:35:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-23 20:35:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2023-11-23 20:35:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2023-11-23 20:35:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_igbvf_exit_module_19_2 [2023-11-23 20:35:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_igbvf_exit_module_19_2 [2023-11-23 20:35:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 20:35:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 20:35:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_tx_resources [2023-11-23 20:35:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_tx_resources [2023-11-23 20:35:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2023-11-23 20:35:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2023-11-23 20:35:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-23 20:35:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-23 20:35:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-11-23 20:35:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-11-23 20:35:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 20:35:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 20:35:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2023-11-23 20:35:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2023-11-23 20:35:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2023-11-23 20:35:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2023-11-23 20:35:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 20:35:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 20:35:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:35:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 20:35:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 20:35:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 20:35:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 20:35:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-23 20:35:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-23 20:35:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-23 20:35:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-23 20:35:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure_msix [2023-11-23 20:35:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure_msix [2023-11-23 20:35:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:35:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_open [2023-11-23 20:35:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_open [2023-11-23 20:35:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-11-23 20:35:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-11-23 20:35:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 20:35:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 20:35:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:35:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:35:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:35:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2023-11-23 20:35:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2023-11-23 20:35:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_nway_reset [2023-11-23 20:35:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_nway_reset [2023-11-23 20:35:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset [2023-11-23 20:35:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset [2023-11-23 20:35:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2023-11-23 20:35:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2023-11-23 20:35:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 20:35:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 20:35:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_enable [2023-11-23 20:35:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_enable [2023-11-23 20:35:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-23 20:35:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-23 20:35:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-11-23 20:35:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-11-23 20:35:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reinit_locked [2023-11-23 20:35:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reinit_locked [2023-11-23 20:35:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 20:35:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 20:35:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 20:35:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 20:35:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_update_stats [2023-11-23 20:35:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_update_stats [2023-11-23 20:35:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_vlan_rx_add_vid [2023-11-23 20:35:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_vlan_rx_add_vid [2023-11-23 20:35:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 20:35:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 20:35:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-23 20:35:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-23 20:35:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_bit_vf [2023-11-23 20:35:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_bit_vf [2023-11-23 20:35:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2023-11-23 20:35:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2023-11-23 20:35:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:35:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:35:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2023-11-23 20:35:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2023-11-23 20:35:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2023-11-23 20:35:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2023-11-23 20:35:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-23 20:35:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-23 20:35:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:35:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:35:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:35:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:35:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-23 20:35:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-23 20:35:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2023-11-23 20:35:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2023-11-23 20:35:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2023-11-23 20:35:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2023-11-23 20:35:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-23 20:35:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-23 20:35:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-11-23 20:35:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-11-23 20:35:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_down [2023-11-23 20:35:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_down [2023-11-23 20:35:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-23 20:35:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-23 20:35:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_regs_len [2023-11-23 20:35:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_regs_len [2023-11-23 20:35:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_irq [2023-11-23 20:35:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_irq [2023-11-23 20:35:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2023-11-23 20:35:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2023-11-23 20:35:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-23 20:35:50,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-23 20:35:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2023-11-23 20:35:50,986 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2023-11-23 20:35:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-23 20:35:50,986 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-23 20:35:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 20:35:50,986 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 20:35:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 20:35:50,986 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 20:35:50,987 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_ring [2023-11-23 20:35:50,987 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_ring [2023-11-23 20:35:50,987 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_v2p_mailbox [2023-11-23 20:35:50,987 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_v2p_mailbox [2023-11-23 20:35:50,987 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-11-23 20:35:50,987 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-11-23 20:35:50,987 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-23 20:35:50,987 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-23 20:35:50,987 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 20:35:50,988 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 20:35:50,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:35:50,988 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 20:35:50,988 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 20:35:50,988 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_remove [2023-11-23 20:35:50,988 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_remove [2023-11-23 20:35:50,988 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2023-11-23 20:35:50,988 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2023-11-23 20:35:50,988 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 20:35:50,989 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 20:35:50,989 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_disable [2023-11-23 20:35:50,989 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_disable [2023-11-23 20:35:50,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:35:50,989 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure [2023-11-23 20:35:50,989 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure [2023-11-23 20:35:50,989 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_rx_resources [2023-11-23 20:35:50,989 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_rx_resources [2023-11-23 20:35:50,989 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_rx_ring [2023-11-23 20:35:50,989 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_rx_ring [2023-11-23 20:35:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2023-11-23 20:35:50,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2023-11-23 20:35:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_obtain_mbx_lock_vf [2023-11-23 20:35:50,990 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_obtain_mbx_lock_vf [2023-11-23 20:35:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2023-11-23 20:35:50,990 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2023-11-23 20:35:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:35:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:35:50,990 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:35:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 20:35:50,990 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 20:35:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_ack_vf [2023-11-23 20:35:50,991 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_ack_vf [2023-11-23 20:35:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 20:35:50,991 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 20:35:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2023-11-23 20:35:50,991 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2023-11-23 20:35:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 20:35:50,991 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 20:35:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2023-11-23 20:35:50,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2023-11-23 20:35:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_request_irq [2023-11-23 20:35:50,992 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_request_irq [2023-11-23 20:35:50,992 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_resume [2023-11-23 20:35:50,992 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_resume [2023-11-23 20:35:50,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 20:35:50,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 20:35:50,992 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-23 20:35:50,992 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-23 20:35:50,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 20:35:50,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 20:35:50,992 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_put_txbuf [2023-11-23 20:35:50,992 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_put_txbuf [2023-11-23 20:35:50,993 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2023-11-23 20:35:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2023-11-23 20:35:50,993 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2023-11-23 20:35:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2023-11-23 20:35:50,993 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2023-11-23 20:35:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2023-11-23 20:35:50,993 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-23 20:35:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-23 20:35:50,993 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 20:35:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 20:35:50,993 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-23 20:35:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-23 20:35:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_shutdown [2023-11-23 20:35:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_shutdown [2023-11-23 20:35:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 20:35:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 20:35:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2023-11-23 20:35:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2023-11-23 20:35:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_tx_resources [2023-11-23 20:35:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_tx_resources [2023-11-23 20:35:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:35:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:35:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_eeprom_len [2023-11-23 20:35:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_eeprom_len [2023-11-23 20:35:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:35:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2023-11-23 20:35:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2023-11-23 20:35:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:35:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:35:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2023-11-23 20:35:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2023-11-23 20:35:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2023-11-23 20:35:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2023-11-23 20:35:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-23 20:35:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-23 20:35:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-23 20:35:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-23 20:35:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2023-11-23 20:35:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2023-11-23 20:35:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_io_resume [2023-11-23 20:35:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_io_resume [2023-11-23 20:35:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_rx_resources [2023-11-23 20:35:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_rx_resources [2023-11-23 20:35:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2023-11-23 20:35:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2023-11-23 20:35:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_set_multi [2023-11-23 20:35:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_set_multi [2023-11-23 20:35:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 20:35:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 20:35:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_tx_timeout [2023-11-23 20:35:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_tx_timeout [2023-11-23 20:35:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-11-23 20:35:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-11-23 20:35:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-23 20:35:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-23 20:35:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2023-11-23 20:35:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2023-11-23 20:35:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2023-11-23 20:35:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2023-11-23 20:35:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-23 20:35:50,999 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-23 20:35:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_up [2023-11-23 20:35:50,999 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_up [2023-11-23 20:35:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-23 20:35:50,999 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-23 20:35:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:35:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2023-11-23 20:35:50,999 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2023-11-23 20:35:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 20:35:51,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 20:35:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-23 20:35:52,359 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:35:52,365 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:35:52,775 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:36:02,038 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 20:36:02,444 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:36:07,163 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:36:07,164 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:36:07,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:07 BoogieIcfgContainer [2023-11-23 20:36:07,167 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:36:07,169 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:36:07,169 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:36:07,173 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:36:07,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:35:43" (1/3) ... [2023-11-23 20:36:07,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc90720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:07, skipping insertion in model container [2023-11-23 20:36:07,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:49" (2/3) ... [2023-11-23 20:36:07,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc90720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:07, skipping insertion in model container [2023-11-23 20:36:07,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:07" (3/3) ... [2023-11-23 20:36:07,176 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2023-11-23 20:36:07,199 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:36:07,199 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:36:07,421 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:36:07,431 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;@3ab80d70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:36:07,432 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:36:07,449 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) [2023-11-23 20:36:07,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-11-23 20:36:07,499 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:07,500 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] [2023-11-23 20:36:07,501 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] === [2023-11-23 20:36:07,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:07,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1346215805, now seen corresponding path program 1 times [2023-11-23 20:36:07,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:07,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835732812] [2023-11-23 20:36:07,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:07,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:08,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2256 trivial. 0 not checked. [2023-11-23 20:36:08,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:08,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835732812] [2023-11-23 20:36:08,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835732812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:08,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:08,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:36:08,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153862794] [2023-11-23 20:36:08,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:08,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:36:08,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:08,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:36:08,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:36:08,843 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) [2023-11-23 20:36:10,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:36:15,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:36:18,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:36:19,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:36:20,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:20,188 INFO L93 Difference]: Finished difference Result 6857 states and 9809 transitions. [2023-11-23 20:36:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:36:20,191 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 [2023-11-23 20:36:20,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:20,254 INFO L225 Difference]: With dead ends: 6857 [2023-11-23 20:36:20,254 INFO L226 Difference]: Without dead ends: 4547 [2023-11-23 20:36:20,274 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 [2023-11-23 20:36:20,278 INFO L413 NwaCegarLoop]: 2892 mSDtfsCounter, 3186 mSDsluCounter, 2842 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 5734 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:20,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3186 Valid, 5734 Invalid, 952 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 944 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2023-11-23 20:36:20,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4547 states. [2023-11-23 20:36:20,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4547 to 4547. [2023-11-23 20:36:20,622 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) [2023-11-23 20:36:20,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4547 states to 4547 states and 6475 transitions. [2023-11-23 20:36:20,671 INFO L78 Accepts]: Start accepts. Automaton has 4547 states and 6475 transitions. Word has length 261 [2023-11-23 20:36:20,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:20,673 INFO L495 AbstractCegarLoop]: Abstraction has 4547 states and 6475 transitions. [2023-11-23 20:36:20,674 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) [2023-11-23 20:36:20,674 INFO L276 IsEmpty]: Start isEmpty. Operand 4547 states and 6475 transitions. [2023-11-23 20:36:20,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-11-23 20:36:20,691 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:20,692 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] [2023-11-23 20:36:20,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:36:20,693 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] === [2023-11-23 20:36:20,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:20,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1957338014, now seen corresponding path program 1 times [2023-11-23 20:36:20,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:20,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396148551] [2023-11-23 20:36:20,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:20,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:21,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2441 trivial. 0 not checked. [2023-11-23 20:36:21,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:21,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396148551] [2023-11-23 20:36:21,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396148551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:21,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:21,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:36:21,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437903117] [2023-11-23 20:36:21,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:21,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:36:21,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:21,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:36:21,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:36:21,919 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) [2023-11-23 20:36:24,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:36:26,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:36:27,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []