./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX/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_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:56:40,937 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:56:41,013 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:56:41,019 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:56:41,020 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:56:41,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:56:41,081 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:56:41,082 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:56:41,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:56:41,088 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:56:41,089 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:56:41,089 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:56:41,090 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:56:41,113 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:56:41,114 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:56:41,114 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:56:41,114 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:56:41,115 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:56:41,115 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:56:41,116 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:56:41,116 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:56:41,117 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:56:41,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:56:41,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:56:41,119 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:56:41,120 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:56:41,120 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:56:41,121 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:56:41,121 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:56:41,121 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:56:41,123 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:56:41,123 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:56:41,123 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:56:41,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:56:41,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:56:41,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:56:41,124 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:56:41,125 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:56:41,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:56:41,125 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:56:41,125 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:56:41,126 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:56:41,126 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_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 [2023-11-12 00:56:41,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:56:41,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:56:41,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:56:41,429 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:56:41,430 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:56:41,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2023-11-12 00:56:44,740 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:56:45,445 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:56:45,447 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db523ef-eca9-4f0c-bda8-7e4f031cd294/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2023-11-12 00:56:45,503 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX/data/fe44c997e/45f821a7d0124043a2500bb1adcf28c2/FLAGe9887abbe [2023-11-12 00:56:45,518 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX/data/fe44c997e/45f821a7d0124043a2500bb1adcf28c2 [2023-11-12 00:56:45,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:56:45,523 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:56:45,524 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:45,525 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:56:45,530 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:56:45,531 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:45" (1/1) ... [2023-11-12 00:56:45,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72bad27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:45, skipping insertion in model container [2023-11-12 00:56:45,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:45" (1/1) ... [2023-11-12 00:56:45,705 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:56:48,657 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_2db523ef-eca9-4f0c-bda8-7e4f031cd294/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] [2023-11-12 00:56:48,662 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_2db523ef-eca9-4f0c-bda8-7e4f031cd294/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] [2023-11-12 00:56:48,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:48,785 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:56:48,931 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] [2023-11-12 00:56:48,934 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] [2023-11-12 00:56:48,934 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5274] [2023-11-12 00:56:48,936 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] [2023-11-12 00:56:48,937 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] [2023-11-12 00:56:48,947 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] [2023-11-12 00:56:48,951 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] [2023-11-12 00:56:48,953 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] [2023-11-12 00:56:48,954 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] [2023-11-12 00:56:48,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (cpu_number)); [6063] [2023-11-12 00:56:48,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6066] [2023-11-12 00:56:48,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6069] [2023-11-12 00:56:48,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6072] [2023-11-12 00:56:48,976 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____0): "m" (cpu_number)); [6103] [2023-11-12 00:56:48,977 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6106] [2023-11-12 00:56:48,978 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6109] [2023-11-12 00:56:48,978 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6112] [2023-11-12 00:56:48,979 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____1): "m" (cpu_number)); [6143] [2023-11-12 00:56:48,979 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6146] [2023-11-12 00:56:48,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6149] [2023-11-12 00:56:48,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6152] [2023-11-12 00:56:48,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____2): "m" (cpu_number)); [6183] [2023-11-12 00:56:48,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6186] [2023-11-12 00:56:48,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6189] [2023-11-12 00:56:48,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6192] [2023-11-12 00:56:49,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7482] [2023-11-12 00:56:49,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7484] [2023-11-12 00:56:49,131 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7491] [2023-11-12 00:56:49,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7626] [2023-11-12 00:56:49,162 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8003] [2023-11-12 00:56:49,193 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8442] [2023-11-12 00:56:49,196 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] [2023-11-12 00:56:49,197 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] [2023-11-12 00:56:49,276 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_2db523ef-eca9-4f0c-bda8-7e4f031cd294/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] [2023-11-12 00:56:49,276 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_2db523ef-eca9-4f0c-bda8-7e4f031cd294/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] [2023-11-12 00:56:49,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:49,513 WARN L672 CHandler]: The function __bad_size_call_parameter is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:49,514 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:49,522 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:56:49,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:49 WrapperNode [2023-11-12 00:56:49,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:49,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:49,527 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:56:49,527 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:56:49,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:49" (1/1) ... [2023-11-12 00:56:49,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:49" (1/1) ... [2023-11-12 00:56:49,938 INFO L138 Inliner]: procedures = 434, calls = 2074, calls flagged for inlining = 219, calls inlined = 204, statements flattened = 5545 [2023-11-12 00:56:49,939 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:49,940 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:56:49,940 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:56:49,940 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:56:49,951 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:49" (1/1) ... [2023-11-12 00:56:49,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:49" (1/1) ... [2023-11-12 00:56:49,992 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:49" (1/1) ... [2023-11-12 00:56:49,992 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:49" (1/1) ... [2023-11-12 00:56:50,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:49" (1/1) ... [2023-11-12 00:56:50,168 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:49" (1/1) ... [2023-11-12 00:56:50,200 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:49" (1/1) ... [2023-11-12 00:56:50,224 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:49" (1/1) ... [2023-11-12 00:56:50,261 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:56:50,263 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:56:50,263 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:56:50,264 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:56:50,264 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:49" (1/1) ... [2023-11-12 00:56:50,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:56:50,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:50,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:56:50,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:56:50,345 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-12 00:56:50,345 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-12 00:56:50,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:56:50,346 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:56:50,346 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-12 00:56:50,346 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-12 00:56:50,346 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2023-11-12 00:56:50,346 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2023-11-12 00:56:50,347 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 00:56:50,347 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 00:56:50,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:56:50,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:56:50,347 INFO L130 BoogieDeclarations]: Found specification of procedure w840_remove1 [2023-11-12 00:56:50,347 INFO L138 BoogieDeclarations]: Found implementation of procedure w840_remove1 [2023-11-12 00:56:50,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_88 [2023-11-12 00:56:50,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_88 [2023-11-12 00:56:50,348 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-12 00:56:50,348 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-12 00:56:50,348 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 00:56:50,348 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 00:56:50,349 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-12 00:56:50,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-12 00:56:50,349 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-12 00:56:50,349 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-12 00:56:50,349 INFO L130 BoogieDeclarations]: Found specification of procedure update_link [2023-11-12 00:56:50,350 INFO L138 BoogieDeclarations]: Found implementation of procedure update_link [2023-11-12 00:56:50,350 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-12 00:56:50,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-12 00:56:50,351 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-12 00:56:50,352 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-12 00:56:50,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:56:50,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:56:50,352 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-12 00:56:50,352 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-12 00:56:50,352 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-12 00:56:50,353 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-12 00:56:50,353 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-12 00:56:50,353 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-12 00:56:50,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:56:50,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:56:50,353 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2023-11-12 00:56:50,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2023-11-12 00:56:50,354 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-12 00:56:50,354 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-12 00:56:50,354 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-12 00:56:50,354 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-12 00:56:50,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:56:50,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-12 00:56:50,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-12 00:56:50,356 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2023-11-12 00:56:50,356 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2023-11-12 00:56:50,356 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 00:56:50,357 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 00:56:50,357 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-12 00:56:50,357 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-12 00:56:50,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:56:50,357 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 00:56:50,357 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 00:56:50,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:56:50,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:56:50,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:56:50,358 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-12 00:56:50,359 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-12 00:56:50,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:56:50,359 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-12 00:56:50,359 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-12 00:56:50,359 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 00:56:50,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 00:56:50,360 INFO L130 BoogieDeclarations]: Found specification of procedure init_rxtx_rings [2023-11-12 00:56:50,360 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rxtx_rings [2023-11-12 00:56:50,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-12 00:56:50,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-12 00:56:50,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 00:56:50,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 00:56:50,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-12 00:56:50,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-12 00:56:50,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-12 00:56:50,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-12 00:56:50,362 INFO L130 BoogieDeclarations]: Found specification of procedure tx_timeout [2023-11-12 00:56:50,362 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_timeout [2023-11-12 00:56:50,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:56:50,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-12 00:56:50,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-12 00:56:50,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 00:56:50,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 00:56:50,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:56:50,364 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2023-11-12 00:56:50,364 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2023-11-12 00:56:50,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:56:50,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:56:50,364 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 00:56:50,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 00:56:50,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:56:50,365 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-12 00:56:50,366 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:56:50,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:56:50,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-12 00:56:50,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-12 00:56:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-12 00:56:50,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-12 00:56:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-12 00:56:50,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-12 00:56:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:56:50,367 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:56:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-12 00:56:50,367 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-12 00:56:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-12 00:56:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-12 00:56:50,368 INFO L130 BoogieDeclarations]: Found specification of procedure update_csr6 [2023-11-12 00:56:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure update_csr6 [2023-11-12 00:56:50,368 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-12 00:56:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-12 00:56:50,368 INFO L130 BoogieDeclarations]: Found specification of procedure w840_resume [2023-11-12 00:56:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure w840_resume [2023-11-12 00:56:50,368 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-12 00:56:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-12 00:56:50,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:56:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:56:50,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:56:50,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:56:50,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:56:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:56:50,369 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2023-11-12 00:56:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2023-11-12 00:56:50,369 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2023-11-12 00:56:50,370 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-12 00:56:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-12 00:56:50,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-12 00:56:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-12 00:56:50,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-12 00:56:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-12 00:56:50,370 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-12 00:56:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-12 00:56:50,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:56:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:56:50,370 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2023-11-12 00:56:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2023-11-12 00:56:50,371 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 00:56:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 00:56:50,371 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-12 00:56:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-12 00:56:50,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:56:50,371 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-12 00:56:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-12 00:56:50,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:56:50,371 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-12 00:56:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-12 00:56:50,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_87 [2023-11-12 00:56:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_87 [2023-11-12 00:56:50,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:56:50,372 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:56:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:56:50,372 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 00:56:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 00:56:50,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-12 00:56:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-12 00:56:50,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:56:50,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:56:50,373 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2023-11-12 00:56:50,373 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2023-11-12 00:56:50,373 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2023-11-12 00:56:50,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2023-11-12 00:56:50,373 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-12 00:56:50,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-12 00:56:50,373 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 00:56:50,374 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 00:56:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-12 00:56:50,374 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-12 00:56:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-12 00:56:50,374 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-12 00:56:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:56:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:56:50,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:56:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_95 [2023-11-12 00:56:50,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_95 [2023-11-12 00:56:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2023-11-12 00:56:50,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2023-11-12 00:56:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-11-12 00:56:50,375 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-11-12 00:56:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2023-11-12 00:56:50,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2023-11-12 00:56:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-12 00:56:50,375 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-12 00:56:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:56:50,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:56:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-12 00:56:50,376 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-12 00:56:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-12 00:56:50,376 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-12 00:56:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure free_rxtx_rings [2023-11-12 00:56:50,376 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rxtx_rings [2023-11-12 00:56:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:56:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:56:50,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:56:51,269 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:56:51,279 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:56:51,927 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:56:55,821 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 00:56:55,928 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:56:58,809 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:56:58,809 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-12 00:56:58,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:58 BoogieIcfgContainer [2023-11-12 00:56:58,816 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:56:58,821 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:56:58,821 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:56:58,824 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:56:58,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:56:45" (1/3) ... [2023-11-12 00:56:58,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cdf50bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:58, skipping insertion in model container [2023-11-12 00:56:58,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:49" (2/3) ... [2023-11-12 00:56:58,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cdf50bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:58, skipping insertion in model container [2023-11-12 00:56:58,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:58" (3/3) ... [2023-11-12 00:56:58,828 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2023-11-12 00:56:58,850 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:56:58,851 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:56:58,963 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:56:58,973 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;@2f25ab4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:56:58,974 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:56:58,987 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) [2023-11-12 00:56:59,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-12 00:56:59,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:59,045 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] [2023-11-12 00:56:59,046 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:56:59,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:59,054 INFO L85 PathProgramCache]: Analyzing trace with hash 110144777, now seen corresponding path program 1 times [2023-11-12 00:56:59,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:59,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071323893] [2023-11-12 00:56:59,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:59,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:00,148 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-12 00:57:00,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:57:00,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071323893] [2023-11-12 00:57:00,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071323893] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:57:00,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:57:00,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:57:00,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104367939] [2023-11-12 00:57:00,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:57:00,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:57:00,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:57:00,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:57:00,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:57:00,211 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) [2023-11-12 00:57:03,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:57:04,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:57:04,201 INFO L93 Difference]: Finished difference Result 3676 states and 5367 transitions. [2023-11-12 00:57:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:57:04,204 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 [2023-11-12 00:57:04,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:57:04,243 INFO L225 Difference]: With dead ends: 3676 [2023-11-12 00:57:04,243 INFO L226 Difference]: Without dead ends: 2314 [2023-11-12 00:57:04,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:57:04,270 INFO L413 NwaCegarLoop]: 1772 mSDtfsCounter, 1553 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 3376 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:57:04,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1553 Valid, 3376 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-12 00:57:04,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2023-11-12 00:57:04,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 2310. [2023-11-12 00:57:04,634 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) [2023-11-12 00:57:04,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 3326 transitions. [2023-11-12 00:57:04,665 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 3326 transitions. Word has length 139 [2023-11-12 00:57:04,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:57:04,666 INFO L495 AbstractCegarLoop]: Abstraction has 2310 states and 3326 transitions. [2023-11-12 00:57:04,667 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) [2023-11-12 00:57:04,667 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 3326 transitions. [2023-11-12 00:57:04,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-12 00:57:04,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:04,686 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] [2023-11-12 00:57:04,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:57:04,687 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:57:04,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:04,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1834737212, now seen corresponding path program 1 times [2023-11-12 00:57:04,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:57:04,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852986303] [2023-11-12 00:57:04,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:04,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:57:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:05,359 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-12 00:57:05,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:57:05,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852986303] [2023-11-12 00:57:05,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852986303] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:57:05,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:57:05,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:57:05,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803723143] [2023-11-12 00:57:05,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:57:05,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:57:05,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:57:05,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:57:05,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:57:05,367 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) [2023-11-12 00:57:07,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:57:07,675 INFO L93 Difference]: Finished difference Result 6033 states and 8651 transitions. [2023-11-12 00:57:07,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:57:07,676 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 [2023-11-12 00:57:07,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:57:07,713 INFO L225 Difference]: With dead ends: 6033 [2023-11-12 00:57:07,714 INFO L226 Difference]: Without dead ends: 3740 [2023-11-12 00:57:07,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:57:07,728 INFO L413 NwaCegarLoop]: 1959 mSDtfsCounter, 1158 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 2.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:57:07,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 3536 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-12 00:57:07,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3740 states. [2023-11-12 00:57:08,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3740 to 3736. [2023-11-12 00:57:08,156 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) [2023-11-12 00:57:08,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3736 states to 3736 states and 5317 transitions. [2023-11-12 00:57:08,193 INFO L78 Accepts]: Start accepts. Automaton has 3736 states and 5317 transitions. Word has length 159 [2023-11-12 00:57:08,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:57:08,194 INFO L495 AbstractCegarLoop]: Abstraction has 3736 states and 5317 transitions. [2023-11-12 00:57:08,194 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) [2023-11-12 00:57:08,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3736 states and 5317 transitions. [2023-11-12 00:57:08,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-12 00:57:08,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:08,207 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] [2023-11-12 00:57:08,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:57:08,207 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:57:08,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:08,208 INFO L85 PathProgramCache]: Analyzing trace with hash -456589864, now seen corresponding path program 1 times [2023-11-12 00:57:08,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:57:08,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144209951] [2023-11-12 00:57:08,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:08,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:57:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:08,652 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2023-11-12 00:57:08,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:57:08,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144209951] [2023-11-12 00:57:08,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144209951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:57:08,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:57:08,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:57:08,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908101395] [2023-11-12 00:57:08,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:57:08,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:57:08,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:57:08,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:57:08,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:57:08,656 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) [2023-11-12 00:57:10,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:57:10,978 INFO L93 Difference]: Finished difference Result 10212 states and 14462 transitions. [2023-11-12 00:57:10,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:57:10,979 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 [2023-11-12 00:57:10,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:57:11,044 INFO L225 Difference]: With dead ends: 10212 [2023-11-12 00:57:11,044 INFO L226 Difference]: Without dead ends: 6493 [2023-11-12 00:57:11,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:57:11,072 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 [2023-11-12 00:57:11,075 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] [2023-11-12 00:57:11,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6493 states. [2023-11-12 00:57:11,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6493 to 6488. [2023-11-12 00:57:11,474 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) [2023-11-12 00:57:11,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6488 states to 6488 states and 9146 transitions. [2023-11-12 00:57:11,511 INFO L78 Accepts]: Start accepts. Automaton has 6488 states and 9146 transitions. Word has length 193 [2023-11-12 00:57:11,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:57:11,511 INFO L495 AbstractCegarLoop]: Abstraction has 6488 states and 9146 transitions. [2023-11-12 00:57:11,512 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) [2023-11-12 00:57:11,512 INFO L276 IsEmpty]: Start isEmpty. Operand 6488 states and 9146 transitions. [2023-11-12 00:57:11,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-11-12 00:57:11,520 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:11,520 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] [2023-11-12 00:57:11,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:57:11,521 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:57:11,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:11,521 INFO L85 PathProgramCache]: Analyzing trace with hash -866032719, now seen corresponding path program 1 times [2023-11-12 00:57:11,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:57:11,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814069598] [2023-11-12 00:57:11,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:11,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:57:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:12,062 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-11-12 00:57:12,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:57:12,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814069598] [2023-11-12 00:57:12,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814069598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:57:12,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:57:12,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:57:12,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145475220] [2023-11-12 00:57:12,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:57:12,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:57:12,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:57:12,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:57:12,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:57:12,066 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) [2023-11-12 00:57:15,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:57:15,242 INFO L93 Difference]: Finished difference Result 15174 states and 21368 transitions. [2023-11-12 00:57:15,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:57:15,243 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 [2023-11-12 00:57:15,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:57:15,319 INFO L225 Difference]: With dead ends: 15174 [2023-11-12 00:57:15,319 INFO L226 Difference]: Without dead ends: 8703 [2023-11-12 00:57:15,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:57:15,359 INFO L413 NwaCegarLoop]: 2582 mSDtfsCounter, 1168 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s 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, 2.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:57:15,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 4151 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-12 00:57:15,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8703 states. [2023-11-12 00:57:15,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8703 to 8697. [2023-11-12 00:57:15,997 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) [2023-11-12 00:57:16,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8697 states to 8697 states and 12182 transitions. [2023-11-12 00:57:16,048 INFO L78 Accepts]: Start accepts. Automaton has 8697 states and 12182 transitions. Word has length 206 [2023-11-12 00:57:16,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:57:16,051 INFO L495 AbstractCegarLoop]: Abstraction has 8697 states and 12182 transitions. [2023-11-12 00:57:16,052 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) [2023-11-12 00:57:16,052 INFO L276 IsEmpty]: Start isEmpty. Operand 8697 states and 12182 transitions. [2023-11-12 00:57:16,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-11-12 00:57:16,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:16,062 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] [2023-11-12 00:57:16,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:57:16,063 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:57:16,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:16,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1430856162, now seen corresponding path program 1 times [2023-11-12 00:57:16,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:57:16,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986691246] [2023-11-12 00:57:16,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:16,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:57:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:16,615 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-12 00:57:16,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:57:16,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986691246] [2023-11-12 00:57:16,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986691246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:57:16,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:57:16,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:57:16,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612282807] [2023-11-12 00:57:16,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:57:16,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:57:16,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:57:16,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:57:16,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:57:16,618 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) [2023-11-12 00:57:19,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:57:19,250 INFO L93 Difference]: Finished difference Result 17449 states and 24509 transitions. [2023-11-12 00:57:19,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:57:19,251 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 [2023-11-12 00:57:19,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:57:19,328 INFO L225 Difference]: With dead ends: 17449 [2023-11-12 00:57:19,328 INFO L226 Difference]: Without dead ends: 8769 [2023-11-12 00:57:19,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:57:19,367 INFO L413 NwaCegarLoop]: 1610 mSDtfsCounter, 4 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:57:19,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3216 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-12 00:57:19,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8769 states. [2023-11-12 00:57:19,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8769 to 8721. [2023-11-12 00:57:19,933 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) [2023-11-12 00:57:19,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8721 states to 8721 states and 12206 transitions. [2023-11-12 00:57:19,974 INFO L78 Accepts]: Start accepts. Automaton has 8721 states and 12206 transitions. Word has length 268 [2023-11-12 00:57:19,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:57:19,977 INFO L495 AbstractCegarLoop]: Abstraction has 8721 states and 12206 transitions. [2023-11-12 00:57:19,978 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) [2023-11-12 00:57:19,978 INFO L276 IsEmpty]: Start isEmpty. Operand 8721 states and 12206 transitions. [2023-11-12 00:57:19,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-11-12 00:57:19,988 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:19,988 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] [2023-11-12 00:57:19,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:57:19,989 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:57:19,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:19,989 INFO L85 PathProgramCache]: Analyzing trace with hash 419365726, now seen corresponding path program 1 times [2023-11-12 00:57:19,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:57:19,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470584614] [2023-11-12 00:57:19,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:19,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:57:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:20,510 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-12 00:57:20,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:57:20,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470584614] [2023-11-12 00:57:20,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470584614] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:57:20,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861985302] [2023-11-12 00:57:20,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:20,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:57:20,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:57:20,517 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:57:20,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db523ef-eca9-4f0c-bda8-7e4f031cd294/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:57:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:21,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 3434 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:57:21,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:57:22,003 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-12 00:57:22,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:57:22,191 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-12 00:57:22,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861985302] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:57:22,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [323246287] [2023-11-12 00:57:22,221 INFO L159 IcfgInterpreter]: Started Sifa with 147 locations of interest [2023-11-12 00:57:22,221 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:57:22,225 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:57:22,231 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:57:22,231 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs