./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:24:15,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:24:15,693 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:24:15,699 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:24:15,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:24:15,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:24:15,727 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:24:15,728 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:24:15,729 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:24:15,729 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:24:15,730 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:24:15,730 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:24:15,731 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:24:15,731 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:24:15,732 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:24:15,732 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:24:15,733 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:24:15,733 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:24:15,734 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:24:15,734 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:24:15,735 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:24:15,735 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:24:15,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:24:15,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:24:15,737 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:24:15,737 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:24:15,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:24:15,738 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:24:15,739 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:24:15,739 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:24:15,739 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:24:15,740 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:24:15,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:24:15,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:15,741 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:24:15,741 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:24:15,741 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:24:15,741 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:24:15,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:24:15,742 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:24:15,742 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:24:15,742 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:24:15,742 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_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 [2023-11-19 05:24:15,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:24:16,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:24:16,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:24:16,014 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:24:16,014 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:24:16,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2023-11-19 05:24:19,229 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:24:19,957 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:24:19,959 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83785ef2-1b0b-4f94-a7ec-d4f404040407/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2023-11-19 05:24:20,018 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ/data/f0cc618b1/87dd1f2160f948dc97867923b478929e/FLAGb1df20d3b [2023-11-19 05:24:20,038 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ/data/f0cc618b1/87dd1f2160f948dc97867923b478929e [2023-11-19 05:24:20,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:24:20,049 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:24:20,053 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:20,053 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:24:20,059 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:24:20,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:20" (1/1) ... [2023-11-19 05:24:20,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60bb17d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:20, skipping insertion in model container [2023-11-19 05:24:20,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:20" (1/1) ... [2023-11-19 05:24:20,248 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:24:23,432 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_83785ef2-1b0b-4f94-a7ec-d4f404040407/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[328915,328928] [2023-11-19 05:24:23,438 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_83785ef2-1b0b-4f94-a7ec-d4f404040407/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[329060,329073] [2023-11-19 05:24:23,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:23,590 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:24:23,726 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"); [5260] [2023-11-19 05:24:23,728 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)); [5267] [2023-11-19 05:24:23,729 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5274] [2023-11-19 05:24:23,731 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/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5315-5316] [2023-11-19 05:24:23,731 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"); [5321-5323] [2023-11-19 05:24:23,743 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)); [5548-5549] [2023-11-19 05:24:23,747 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)); [5582-5583] [2023-11-19 05:24:23,749 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" (103), "i" (12UL)); [5619-5620] [2023-11-19 05:24:23,750 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" (115), "i" (12UL)); [5656-5657] [2023-11-19 05:24:23,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (cpu_number)); [6063] [2023-11-19 05:24:23,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6066] [2023-11-19 05:24:23,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6069] [2023-11-19 05:24:23,763 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6072] [2023-11-19 05:24:23,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____0): "m" (cpu_number)); [6103] [2023-11-19 05:24:23,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6106] [2023-11-19 05:24:23,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6109] [2023-11-19 05:24:23,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6112] [2023-11-19 05:24:23,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____1): "m" (cpu_number)); [6143] [2023-11-19 05:24:23,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6146] [2023-11-19 05:24:23,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6149] [2023-11-19 05:24:23,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6152] [2023-11-19 05:24:23,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____2): "m" (cpu_number)); [6183] [2023-11-19 05:24:23,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6186] [2023-11-19 05:24:23,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6189] [2023-11-19 05:24:23,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6192] [2023-11-19 05:24:23,843 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7482] [2023-11-19 05:24:23,852 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7484] [2023-11-19 05:24:23,853 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7491] [2023-11-19 05:24:23,861 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7626] [2023-11-19 05:24:23,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8003] [2023-11-19 05:24:23,918 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8442] [2023-11-19 05:24:23,922 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/dec/tulip/winbond-840.c"), "i" (1594), "i" (12UL)); [8524-8525] [2023-11-19 05:24:23,922 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/dec/tulip/winbond-840.c"), "i" (1594), "i" (12UL)); [8535-8536] [2023-11-19 05:24:24,052 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_83785ef2-1b0b-4f94-a7ec-d4f404040407/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[328915,328928] [2023-11-19 05:24:24,053 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_83785ef2-1b0b-4f94-a7ec-d4f404040407/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[329060,329073] [2023-11-19 05:24:24,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:24,304 WARN L675 CHandler]: The function __bad_size_call_parameter is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:24:24,304 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:24:24,313 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:24:24,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:24 WrapperNode [2023-11-19 05:24:24,314 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:24,316 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:24,318 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:24:24,318 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:24:24,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:24" (1/1) ... [2023-11-19 05:24:24,462 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:24" (1/1) ... [2023-11-19 05:24:24,748 INFO L138 Inliner]: procedures = 434, calls = 2074, calls flagged for inlining = 219, calls inlined = 204, statements flattened = 5545 [2023-11-19 05:24:24,749 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:24,750 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:24:24,750 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:24:24,750 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:24:24,762 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:24" (1/1) ... [2023-11-19 05:24:24,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:24" (1/1) ... [2023-11-19 05:24:24,790 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:24" (1/1) ... [2023-11-19 05:24:24,791 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:24" (1/1) ... [2023-11-19 05:24:24,932 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:24" (1/1) ... [2023-11-19 05:24:24,968 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:24" (1/1) ... [2023-11-19 05:24:24,998 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:24" (1/1) ... [2023-11-19 05:24:25,016 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:24" (1/1) ... [2023-11-19 05:24:25,056 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:24:25,057 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:24:25,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:24:25,058 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:24:25,059 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:24" (1/1) ... [2023-11-19 05:24:25,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:25,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:24:25,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:24:25,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:24:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 05:24:25,144 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 05:24:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:24:25,144 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:24:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-19 05:24:25,145 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-19 05:24:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2023-11-19 05:24:25,145 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2023-11-19 05:24:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 05:24:25,145 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 05:24:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:24:25,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:24:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure w840_remove1 [2023-11-19 05:24:25,146 INFO L138 BoogieDeclarations]: Found implementation of procedure w840_remove1 [2023-11-19 05:24:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_88 [2023-11-19 05:24:25,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_88 [2023-11-19 05:24:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-19 05:24:25,147 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-19 05:24:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 05:24:25,147 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 05:24:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-19 05:24:25,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-19 05:24:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-19 05:24:25,148 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-19 05:24:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure update_link [2023-11-19 05:24:25,148 INFO L138 BoogieDeclarations]: Found implementation of procedure update_link [2023-11-19 05:24:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-19 05:24:25,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-19 05:24:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-19 05:24:25,151 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-19 05:24:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 05:24:25,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 05:24:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 05:24:25,151 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 05:24:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-19 05:24:25,152 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-19 05:24:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 05:24:25,152 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 05:24:25,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 05:24:25,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 05:24:25,153 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2023-11-19 05:24:25,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2023-11-19 05:24:25,153 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 05:24:25,153 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 05:24:25,154 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-19 05:24:25,154 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-19 05:24:25,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:24:25,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-19 05:24:25,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-19 05:24:25,154 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2023-11-19 05:24:25,155 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2023-11-19 05:24:25,155 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 05:24:25,156 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 05:24:25,156 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 05:24:25,156 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 05:24:25,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:24:25,156 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 05:24:25,156 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 05:24:25,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:24:25,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 05:24:25,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 05:24:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 05:24:25,158 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 05:24:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:24:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-19 05:24:25,158 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-19 05:24:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 05:24:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 05:24:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure init_rxtx_rings [2023-11-19 05:24:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rxtx_rings [2023-11-19 05:24:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 05:24:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 05:24:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 05:24:25,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 05:24:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 05:24:25,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 05:24:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 05:24:25,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 05:24:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure tx_timeout [2023-11-19 05:24:25,161 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_timeout [2023-11-19 05:24:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:24:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 05:24:25,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 05:24:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 05:24:25,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 05:24:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:24:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2023-11-19 05:24:25,163 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2023-11-19 05:24:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 05:24:25,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 05:24:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 05:24:25,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 05:24:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:24:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 05:24:25,166 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:24:25,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:24:25,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-19 05:24:25,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-19 05:24:25,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-19 05:24:25,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-19 05:24:25,167 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 05:24:25,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 05:24:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 05:24:25,168 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 05:24:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 05:24:25,168 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 05:24:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 05:24:25,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 05:24:25,169 INFO L130 BoogieDeclarations]: Found specification of procedure update_csr6 [2023-11-19 05:24:25,169 INFO L138 BoogieDeclarations]: Found implementation of procedure update_csr6 [2023-11-19 05:24:25,169 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-19 05:24:25,170 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-19 05:24:25,171 INFO L130 BoogieDeclarations]: Found specification of procedure w840_resume [2023-11-19 05:24:25,173 INFO L138 BoogieDeclarations]: Found implementation of procedure w840_resume [2023-11-19 05:24:25,174 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-19 05:24:25,174 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-19 05:24:25,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:24:25,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:24:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:24:25,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:24:25,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:24:25,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:24:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2023-11-19 05:24:25,184 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2023-11-19 05:24:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2023-11-19 05:24:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-19 05:24:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-19 05:24:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 05:24:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 05:24:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-19 05:24:25,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-19 05:24:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 05:24:25,186 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 05:24:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:24:25,186 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:24:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2023-11-19 05:24:25,186 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2023-11-19 05:24:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 05:24:25,187 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 05:24:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 05:24:25,187 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 05:24:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:24:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 05:24:25,187 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 05:24:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:24:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-19 05:24:25,188 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-19 05:24:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_87 [2023-11-19 05:24:25,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_87 [2023-11-19 05:24:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:24:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:24:25,188 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:24:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 05:24:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 05:24:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-19 05:24:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-19 05:24:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 05:24:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 05:24:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2023-11-19 05:24:25,190 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2023-11-19 05:24:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2023-11-19 05:24:25,190 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2023-11-19 05:24:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 05:24:25,190 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 05:24:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 05:24:25,191 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 05:24:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-19 05:24:25,191 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-19 05:24:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 05:24:25,191 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 05:24:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:24:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:24:25,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:24:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_95 [2023-11-19 05:24:25,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_95 [2023-11-19 05:24:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2023-11-19 05:24:25,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2023-11-19 05:24:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-11-19 05:24:25,192 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-11-19 05:24:25,193 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2023-11-19 05:24:25,193 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2023-11-19 05:24:25,193 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-19 05:24:25,193 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-19 05:24:25,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 05:24:25,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 05:24:25,193 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-19 05:24:25,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-19 05:24:25,194 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 05:24:25,194 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 05:24:25,194 INFO L130 BoogieDeclarations]: Found specification of procedure free_rxtx_rings [2023-11-19 05:24:25,194 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rxtx_rings [2023-11-19 05:24:25,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:24:25,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 05:24:25,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 05:24:26,037 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:24:26,041 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:24:26,539 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:24:30,655 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 05:24:30,813 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:24:33,696 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:24:33,697 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-19 05:24:33,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:33 BoogieIcfgContainer [2023-11-19 05:24:33,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:24:33,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:24:33,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:24:33,724 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:24:33,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:24:20" (1/3) ... [2023-11-19 05:24:33,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166a79d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:33, skipping insertion in model container [2023-11-19 05:24:33,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:24" (2/3) ... [2023-11-19 05:24:33,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166a79d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:33, skipping insertion in model container [2023-11-19 05:24:33,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:33" (3/3) ... [2023-11-19 05:24:33,728 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2023-11-19 05:24:33,750 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:24:33,751 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:24:33,865 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:24:33,875 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;@90adb44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:24:33,875 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:24:33,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 1325 states, 757 states have (on average 1.2879788639365919) internal successors, (975), 779 states have internal predecessors, (975), 480 states have call successors, (480), 88 states have call predecessors, (480), 87 states have return successors, (475), 471 states have call predecessors, (475), 475 states have call successors, (475) [2023-11-19 05:24:33,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-19 05:24:33,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:33,939 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 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] [2023-11-19 05:24:33,940 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:33,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:33,948 INFO L85 PathProgramCache]: Analyzing trace with hash 110144777, now seen corresponding path program 1 times [2023-11-19 05:24:33,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:24:33,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348815192] [2023-11-19 05:24:33,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:33,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:24:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:35,125 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-19 05:24:35,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:24:35,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348815192] [2023-11-19 05:24:35,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348815192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:35,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:35,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:24:35,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797243033] [2023-11-19 05:24:35,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:35,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:24:35,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:24:35,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:24:35,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:35,199 INFO L87 Difference]: Start difference. First operand has 1325 states, 757 states have (on average 1.2879788639365919) internal successors, (975), 779 states have internal predecessors, (975), 480 states have call successors, (480), 88 states have call predecessors, (480), 87 states have return successors, (475), 471 states have call predecessors, (475), 475 states have call successors, (475) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-19 05:24:37,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:37,204 INFO L93 Difference]: Finished difference Result 3676 states and 5367 transitions. [2023-11-19 05:24:37,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:24:37,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 139 [2023-11-19 05:24:37,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:37,243 INFO L225 Difference]: With dead ends: 3676 [2023-11-19 05:24:37,243 INFO L226 Difference]: Without dead ends: 2314 [2023-11-19 05:24:37,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:37,261 INFO L413 NwaCegarLoop]: 1772 mSDtfsCounter, 1553 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 3376 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:37,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1553 Valid, 3376 Invalid, 556 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-19 05:24:37,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2023-11-19 05:24:37,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 2310. [2023-11-19 05:24:37,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2310 states, 1326 states have (on average 1.2737556561085972) internal successors, (1689), 1363 states have internal predecessors, (1689), 816 states have call successors, (816), 168 states have call predecessors, (816), 167 states have return successors, (821), 804 states have call predecessors, (821), 816 states have call successors, (821) [2023-11-19 05:24:37,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 3326 transitions. [2023-11-19 05:24:37,620 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 3326 transitions. Word has length 139 [2023-11-19 05:24:37,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:37,621 INFO L495 AbstractCegarLoop]: Abstraction has 2310 states and 3326 transitions. [2023-11-19 05:24:37,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-19 05:24:37,622 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 3326 transitions. [2023-11-19 05:24:37,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-19 05:24:37,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:37,641 INFO L195 NwaCegarLoop]: trace histogram [10, 8, 8, 8, 8, 8, 8, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:24:37,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:24:37,642 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:37,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:37,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1834737212, now seen corresponding path program 1 times [2023-11-19 05:24:37,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:24:37,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647967438] [2023-11-19 05:24:37,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:37,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:24:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:38,207 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 05:24:38,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:24:38,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647967438] [2023-11-19 05:24:38,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647967438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:38,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:38,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:24:38,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328073481] [2023-11-19 05:24:38,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:38,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:24:38,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:24:38,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:24:38,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:38,212 INFO L87 Difference]: Start difference. First operand 2310 states and 3326 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-19 05:24:40,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:40,560 INFO L93 Difference]: Finished difference Result 6033 states and 8651 transitions. [2023-11-19 05:24:40,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:24:40,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 159 [2023-11-19 05:24:40,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:40,600 INFO L225 Difference]: With dead ends: 6033 [2023-11-19 05:24:40,600 INFO L226 Difference]: Without dead ends: 3740 [2023-11-19 05:24:40,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:40,623 INFO L413 NwaCegarLoop]: 1959 mSDtfsCounter, 1158 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 3536 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:40,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 3536 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-19 05:24:40,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3740 states. [2023-11-19 05:24:40,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3740 to 3736. [2023-11-19 05:24:40,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3736 states, 2186 states have (on average 1.2753888380603842) internal successors, (2788), 2242 states have internal predecessors, (2788), 1262 states have call successors, (1262), 288 states have call predecessors, (1262), 287 states have return successors, (1267), 1248 states have call predecessors, (1267), 1262 states have call successors, (1267) [2023-11-19 05:24:40,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3736 states to 3736 states and 5317 transitions. [2023-11-19 05:24:40,996 INFO L78 Accepts]: Start accepts. Automaton has 3736 states and 5317 transitions. Word has length 159 [2023-11-19 05:24:40,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:40,996 INFO L495 AbstractCegarLoop]: Abstraction has 3736 states and 5317 transitions. [2023-11-19 05:24:40,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-19 05:24:40,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3736 states and 5317 transitions. [2023-11-19 05:24:41,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-19 05:24:41,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:41,013 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:24:41,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:24:41,014 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:41,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:41,024 INFO L85 PathProgramCache]: Analyzing trace with hash -456589864, now seen corresponding path program 1 times [2023-11-19 05:24:41,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:24:41,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208980797] [2023-11-19 05:24:41,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:41,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:24:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:41,514 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2023-11-19 05:24:41,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:24:41,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208980797] [2023-11-19 05:24:41,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208980797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:41,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:41,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:24:41,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869501439] [2023-11-19 05:24:41,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:41,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:24:41,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:24:41,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:24:41,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:41,519 INFO L87 Difference]: Start difference. First operand 3736 states and 5317 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-19 05:24:43,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:43,914 INFO L93 Difference]: Finished difference Result 10212 states and 14462 transitions. [2023-11-19 05:24:43,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:24:43,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 193 [2023-11-19 05:24:43,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:43,980 INFO L225 Difference]: With dead ends: 10212 [2023-11-19 05:24:43,980 INFO L226 Difference]: Without dead ends: 6493 [2023-11-19 05:24:44,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:44,001 INFO L413 NwaCegarLoop]: 1620 mSDtfsCounter, 1603 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 3191 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:44,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 3191 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-19 05:24:44,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6493 states. [2023-11-19 05:24:44,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6493 to 6488. [2023-11-19 05:24:44,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6488 states, 3783 states have (on average 1.260639703938673) internal successors, (4769), 3889 states have internal predecessors, (4769), 2182 states have call successors, (2182), 524 states have call predecessors, (2182), 522 states have return successors, (2195), 2151 states have call predecessors, (2195), 2182 states have call successors, (2195) [2023-11-19 05:24:44,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6488 states to 6488 states and 9146 transitions. [2023-11-19 05:24:44,510 INFO L78 Accepts]: Start accepts. Automaton has 6488 states and 9146 transitions. Word has length 193 [2023-11-19 05:24:44,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:44,511 INFO L495 AbstractCegarLoop]: Abstraction has 6488 states and 9146 transitions. [2023-11-19 05:24:44,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-19 05:24:44,511 INFO L276 IsEmpty]: Start isEmpty. Operand 6488 states and 9146 transitions. [2023-11-19 05:24:44,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-11-19 05:24:44,522 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:44,522 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 8, 8, 8, 8, 5, 5, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:24:44,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:24:44,523 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:44,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:44,524 INFO L85 PathProgramCache]: Analyzing trace with hash -866032719, now seen corresponding path program 1 times [2023-11-19 05:24:44,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:24:44,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224965955] [2023-11-19 05:24:44,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:44,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:24:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-11-19 05:24:45,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:24:45,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224965955] [2023-11-19 05:24:45,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224965955] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:45,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:45,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:24:45,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51388783] [2023-11-19 05:24:45,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:45,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:24:45,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:24:45,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:24:45,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:45,180 INFO L87 Difference]: Start difference. First operand 6488 states and 9146 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-19 05:24:48,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:48,378 INFO L93 Difference]: Finished difference Result 15174 states and 21368 transitions. [2023-11-19 05:24:48,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:24:48,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 206 [2023-11-19 05:24:48,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:48,471 INFO L225 Difference]: With dead ends: 15174 [2023-11-19 05:24:48,471 INFO L226 Difference]: Without dead ends: 8703 [2023-11-19 05:24:48,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:48,512 INFO L413 NwaCegarLoop]: 2582 mSDtfsCounter, 1168 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 4151 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:48,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 4151 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-19 05:24:48,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8703 states. [2023-11-19 05:24:49,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8703 to 8697. [2023-11-19 05:24:49,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8697 states, 5121 states have (on average 1.2608865455965632) internal successors, (6457), 5260 states have internal predecessors, (6457), 2856 states have call successors, (2856), 721 states have call predecessors, (2856), 719 states have return successors, (2869), 2821 states have call predecessors, (2869), 2856 states have call successors, (2869) [2023-11-19 05:24:49,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8697 states to 8697 states and 12182 transitions. [2023-11-19 05:24:49,208 INFO L78 Accepts]: Start accepts. Automaton has 8697 states and 12182 transitions. Word has length 206 [2023-11-19 05:24:49,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:49,210 INFO L495 AbstractCegarLoop]: Abstraction has 8697 states and 12182 transitions. [2023-11-19 05:24:49,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-19 05:24:49,212 INFO L276 IsEmpty]: Start isEmpty. Operand 8697 states and 12182 transitions. [2023-11-19 05:24:49,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-11-19 05:24:49,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:49,225 INFO L195 NwaCegarLoop]: trace histogram [15, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:24:49,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:24:49,226 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:49,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:49,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1430856162, now seen corresponding path program 1 times [2023-11-19 05:24:49,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:24:49,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792737211] [2023-11-19 05:24:49,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:49,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:24:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:49,958 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-19 05:24:49,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:24:49,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792737211] [2023-11-19 05:24:49,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792737211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:49,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:49,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:24:49,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890805498] [2023-11-19 05:24:49,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:49,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:24:49,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:24:49,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:24:49,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:49,963 INFO L87 Difference]: Start difference. First operand 8697 states and 12182 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-11-19 05:24:51,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:51,721 INFO L93 Difference]: Finished difference Result 17449 states and 24509 transitions. [2023-11-19 05:24:51,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:24:51,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 268 [2023-11-19 05:24:51,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:51,819 INFO L225 Difference]: With dead ends: 17449 [2023-11-19 05:24:51,820 INFO L226 Difference]: Without dead ends: 8769 [2023-11-19 05:24:51,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:51,868 INFO L413 NwaCegarLoop]: 1610 mSDtfsCounter, 4 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:51,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3216 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 05:24:51,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8769 states. [2023-11-19 05:24:52,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8769 to 8721. [2023-11-19 05:24:52,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8721 states, 5145 states have (on average 1.2596695821185617) internal successors, (6481), 5284 states have internal predecessors, (6481), 2856 states have call successors, (2856), 721 states have call predecessors, (2856), 719 states have return successors, (2869), 2821 states have call predecessors, (2869), 2856 states have call successors, (2869) [2023-11-19 05:24:52,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8721 states to 8721 states and 12206 transitions. [2023-11-19 05:24:52,675 INFO L78 Accepts]: Start accepts. Automaton has 8721 states and 12206 transitions. Word has length 268 [2023-11-19 05:24:52,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:52,677 INFO L495 AbstractCegarLoop]: Abstraction has 8721 states and 12206 transitions. [2023-11-19 05:24:52,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-11-19 05:24:52,678 INFO L276 IsEmpty]: Start isEmpty. Operand 8721 states and 12206 transitions. [2023-11-19 05:24:52,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-11-19 05:24:52,694 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:52,695 INFO L195 NwaCegarLoop]: trace histogram [15, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:24:52,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:24:52,695 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:52,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:52,696 INFO L85 PathProgramCache]: Analyzing trace with hash 419365726, now seen corresponding path program 1 times [2023-11-19 05:24:52,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:24:52,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595129843] [2023-11-19 05:24:52,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:52,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:24:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:53,600 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-19 05:24:53,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:24:53,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595129843] [2023-11-19 05:24:53,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595129843] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:24:53,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271677311] [2023-11-19 05:24:53,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:53,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:24:53,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:24:53,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:24:53,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83785ef2-1b0b-4f94-a7ec-d4f404040407/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:24:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:55,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 3434 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:24:55,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:55,405 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-19 05:24:55,405 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:24:55,611 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-19 05:24:55,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271677311] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:24:55,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1932038579] [2023-11-19 05:24:55,646 INFO L159 IcfgInterpreter]: Started Sifa with 147 locations of interest [2023-11-19 05:24:55,646 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:24:55,651 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:24:55,658 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:24:55,658 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs