./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 a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje/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_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje --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 47e628a85cf14930483dd0a675b9669c50f97d39bf37153c2a18651b4dc12afd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:04:04,723 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:04:04,799 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 05:04:04,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:04:04,804 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:04:04,848 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:04:04,849 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:04:04,849 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:04:04,850 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:04:04,850 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:04:04,851 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:04:04,851 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:04:04,852 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:04:04,855 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:04:04,855 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:04:04,855 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:04:04,856 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:04:04,856 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:04:04,856 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:04:04,857 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:04:04,857 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:04:04,857 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:04:04,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:04:04,859 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:04:04,859 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:04:04,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:04:04,860 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:04:04,860 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:04:04,864 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:04:04,864 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:04:04,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:04:04,864 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:04:04,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:04:04,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:04:04,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:04:04,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:04:04,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:04:04,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:04:04,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:04:04,867 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:04:04,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:04:04,869 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:04:04,869 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:04:04,870 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:04:04,870 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_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47e628a85cf14930483dd0a675b9669c50f97d39bf37153c2a18651b4dc12afd [2024-11-09 05:04:05,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:04:05,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:04:05,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:04:05,196 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:04:05,196 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:04:05,197 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i Unable to find full path for "g++" [2024-11-09 05:04:07,200 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:04:07,873 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:04:07,873 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2024-11-09 05:04:07,929 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje/data/f24d599a5/979dc0170dd74184806c3e854fef9f03/FLAG62c0bd21c [2024-11-09 05:04:07,948 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje/data/f24d599a5/979dc0170dd74184806c3e854fef9f03 [2024-11-09 05:04:07,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:04:07,952 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:04:07,956 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:04:07,956 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:04:07,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:04:07,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:04:07" (1/1) ... [2024-11-09 05:04:07,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39f151e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:07, skipping insertion in model container [2024-11-09 05:04:07,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:04:07" (1/1) ... [2024-11-09 05:04:08,122 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:04:11,131 WARN L250 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_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/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] [2024-11-09 05:04:11,135 WARN L250 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_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/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] [2024-11-09 05:04:11,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:04:11,240 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:04:11,380 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] [2024-11-09 05:04:11,382 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] [2024-11-09 05:04:11,383 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5274] [2024-11-09 05:04:11,385 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] [2024-11-09 05:04:11,386 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] [2024-11-09 05:04:11,400 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] [2024-11-09 05:04:11,404 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] [2024-11-09 05:04:11,405 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] [2024-11-09 05:04:11,407 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] [2024-11-09 05:04:11,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (cpu_number)); [6063] [2024-11-09 05:04:11,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6066] [2024-11-09 05:04:11,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6069] [2024-11-09 05:04:11,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6072] [2024-11-09 05:04:11,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____0): "m" (cpu_number)); [6103] [2024-11-09 05:04:11,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6106] [2024-11-09 05:04:11,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6109] [2024-11-09 05:04:11,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6112] [2024-11-09 05:04:11,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____1): "m" (cpu_number)); [6143] [2024-11-09 05:04:11,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6146] [2024-11-09 05:04:11,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6149] [2024-11-09 05:04:11,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6152] [2024-11-09 05:04:11,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____2): "m" (cpu_number)); [6183] [2024-11-09 05:04:11,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6186] [2024-11-09 05:04:11,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6189] [2024-11-09 05:04:11,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6192] [2024-11-09 05:04:11,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7482] [2024-11-09 05:04:11,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7484] [2024-11-09 05:04:11,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7491] [2024-11-09 05:04:11,514 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7626] [2024-11-09 05:04:11,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8003] [2024-11-09 05:04:11,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8442] [2024-11-09 05:04:11,620 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] [2024-11-09 05:04:11,621 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] [2024-11-09 05:04:11,706 WARN L250 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_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/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] [2024-11-09 05:04:11,709 WARN L250 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_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/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] [2024-11-09 05:04:11,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:04:11,951 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:04:11,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:11 WrapperNode [2024-11-09 05:04:11,953 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:04:11,954 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:04:11,955 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:04:11,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:04:11,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:11" (1/1) ... [2024-11-09 05:04:12,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:11" (1/1) ... [2024-11-09 05:04:12,300 INFO L138 Inliner]: procedures = 434, calls = 2067, calls flagged for inlining = 220, calls inlined = 205, statements flattened = 5731 [2024-11-09 05:04:12,300 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:04:12,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:04:12,302 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:04:12,302 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:04:12,313 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:11" (1/1) ... [2024-11-09 05:04:12,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:11" (1/1) ... [2024-11-09 05:04:12,349 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:11" (1/1) ... [2024-11-09 05:04:12,349 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:11" (1/1) ... [2024-11-09 05:04:12,537 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:11" (1/1) ... [2024-11-09 05:04:12,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:11" (1/1) ... [2024-11-09 05:04:12,595 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:11" (1/1) ... [2024-11-09 05:04:12,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:11" (1/1) ... [2024-11-09 05:04:12,654 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:04:12,656 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:04:12,656 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:04:12,657 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:04:12,658 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:11" (1/1) ... [2024-11-09 05:04:12,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:04:12,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:04:12,706 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:04:12,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:04:12,750 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-11-09 05:04:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-11-09 05:04:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 05:04:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 05:04:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2024-11-09 05:04:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2024-11-09 05:04:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-11-09 05:04:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-11-09 05:04:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-09 05:04:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-09 05:04:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 05:04:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 05:04:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure w840_remove1 [2024-11-09 05:04:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure w840_remove1 [2024-11-09 05:04:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_88 [2024-11-09 05:04:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_88 [2024-11-09 05:04:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2024-11-09 05:04:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2024-11-09 05:04:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-11-09 05:04:12,755 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-11-09 05:04:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2024-11-09 05:04:12,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2024-11-09 05:04:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2024-11-09 05:04:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2024-11-09 05:04:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure update_link [2024-11-09 05:04:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure update_link [2024-11-09 05:04:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2024-11-09 05:04:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2024-11-09 05:04:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2024-11-09 05:04:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2024-11-09 05:04:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-09 05:04:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-09 05:04:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2024-11-09 05:04:12,758 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2024-11-09 05:04:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2024-11-09 05:04:12,758 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2024-11-09 05:04:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-11-09 05:04:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-11-09 05:04:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-09 05:04:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-09 05:04:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2024-11-09 05:04:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2024-11-09 05:04:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2024-11-09 05:04:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2024-11-09 05:04:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2024-11-09 05:04:12,761 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2024-11-09 05:04:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:04:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2024-11-09 05:04:12,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2024-11-09 05:04:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-09 05:04:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-09 05:04:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-09 05:04:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-09 05:04:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-09 05:04:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-09 05:04:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 05:04:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-11-09 05:04:12,764 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-11-09 05:04:12,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 05:04:12,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-09 05:04:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-09 05:04:12,766 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-11-09 05:04:12,767 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-11-09 05:04:12,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:04:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2024-11-09 05:04:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2024-11-09 05:04:12,769 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-11-09 05:04:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-11-09 05:04:12,770 INFO L130 BoogieDeclarations]: Found specification of procedure init_rxtx_rings [2024-11-09 05:04:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rxtx_rings [2024-11-09 05:04:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2024-11-09 05:04:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2024-11-09 05:04:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-09 05:04:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-09 05:04:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-11-09 05:04:12,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-11-09 05:04:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-11-09 05:04:12,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-11-09 05:04:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure tx_timeout [2024-11-09 05:04:12,774 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_timeout [2024-11-09 05:04:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:04:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-09 05:04:12,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-09 05:04:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-09 05:04:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-09 05:04:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:04:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2024-11-09 05:04:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2024-11-09 05:04:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 05:04:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 05:04:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-09 05:04:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-09 05:04:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 05:04:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2024-11-09 05:04:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __bad_percpu_size [2024-11-09 05:04:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 05:04:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 05:04:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2024-11-09 05:04:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2024-11-09 05:04:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2024-11-09 05:04:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2024-11-09 05:04:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2024-11-09 05:04:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2024-11-09 05:04:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-09 05:04:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-09 05:04:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-09 05:04:12,783 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-09 05:04:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-11-09 05:04:12,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-11-09 05:04:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure update_csr6 [2024-11-09 05:04:12,784 INFO L138 BoogieDeclarations]: Found implementation of procedure update_csr6 [2024-11-09 05:04:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2024-11-09 05:04:12,786 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2024-11-09 05:04:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure w840_resume [2024-11-09 05:04:12,788 INFO L138 BoogieDeclarations]: Found implementation of procedure w840_resume [2024-11-09 05:04:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2024-11-09 05:04:12,789 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2024-11-09 05:04:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:04:12,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:04:12,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 05:04:12,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 05:04:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 05:04:12,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 05:04:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2024-11-09 05:04:12,793 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2024-11-09 05:04:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2024-11-09 05:04:12,794 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2024-11-09 05:04:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2024-11-09 05:04:12,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2024-11-09 05:04:12,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2024-11-09 05:04:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2024-11-09 05:04:12,795 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2024-11-09 05:04:12,796 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2024-11-09 05:04:12,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 05:04:12,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 05:04:12,796 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2024-11-09 05:04:12,796 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2024-11-09 05:04:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-09 05:04:12,797 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-09 05:04:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-09 05:04:12,797 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-09 05:04:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:04:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-11-09 05:04:12,800 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-11-09 05:04:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:04:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-09 05:04:12,800 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-09 05:04:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_87 [2024-11-09 05:04:12,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_87 [2024-11-09 05:04:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 05:04:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 05:04:12,801 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 05:04:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-09 05:04:12,802 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-09 05:04:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2024-11-09 05:04:12,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2024-11-09 05:04:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-09 05:04:12,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-09 05:04:12,803 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2024-11-09 05:04:12,803 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2024-11-09 05:04:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2024-11-09 05:04:12,804 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2024-11-09 05:04:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-09 05:04:12,805 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-09 05:04:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-09 05:04:12,805 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-09 05:04:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2024-11-09 05:04:12,806 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2024-11-09 05:04:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-09 05:04:12,806 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-09 05:04:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:04:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 05:04:12,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 05:04:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_95 [2024-11-09 05:04:12,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_95 [2024-11-09 05:04:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2024-11-09 05:04:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2024-11-09 05:04:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2024-11-09 05:04:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2024-11-09 05:04:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2024-11-09 05:04:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2024-11-09 05:04:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2024-11-09 05:04:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2024-11-09 05:04:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-09 05:04:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-09 05:04:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2024-11-09 05:04:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2024-11-09 05:04:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-09 05:04:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-09 05:04:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure free_rxtx_rings [2024-11-09 05:04:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rxtx_rings [2024-11-09 05:04:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:04:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-09 05:04:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-09 05:04:13,756 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:04:13,762 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:04:14,252 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 05:04:22,997 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-09 05:04:24,145 INFO L? ?]: Removed 2432 outVars from TransFormulas that were not future-live. [2024-11-09 05:04:24,145 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:04:26,735 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:04:26,736 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-09 05:04:26,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:04:26 BoogieIcfgContainer [2024-11-09 05:04:26,736 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:04:26,738 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:04:26,738 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:04:26,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:04:26,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:04:07" (1/3) ... [2024-11-09 05:04:26,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d60c6b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:04:26, skipping insertion in model container [2024-11-09 05:04:26,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:11" (2/3) ... [2024-11-09 05:04:26,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d60c6b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:04:26, skipping insertion in model container [2024-11-09 05:04:26,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:04:26" (3/3) ... [2024-11-09 05:04:26,745 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2024-11-09 05:04:26,765 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:04:26,765 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:04:26,877 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:04:26,883 INFO L333 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, 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;@e944563, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:04:26,884 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:04:26,893 INFO L276 IsEmpty]: Start isEmpty. Operand has 1375 states, 802 states have (on average 1.2967581047381547) internal successors, (1040), 826 states have internal predecessors, (1040), 484 states have call successors, (484), 89 states have call predecessors, (484), 88 states have return successors, (479), 475 states have call predecessors, (479), 479 states have call successors, (479) [2024-11-09 05:04:26,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-09 05:04:26,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:04:26,928 INFO L215 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] [2024-11-09 05:04:26,929 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:04:26,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:04:26,937 INFO L85 PathProgramCache]: Analyzing trace with hash 2143578737, now seen corresponding path program 1 times [2024-11-09 05:04:26,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:04:26,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477204039] [2024-11-09 05:04:26,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:04:26,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:04:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:04:41,050 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-09 05:04:41,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:04:41,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477204039] [2024-11-09 05:04:41,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477204039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:04:41,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:04:41,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:04:41,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717870395] [2024-11-09 05:04:41,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:04:41,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:04:41,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:04:41,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:04:41,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:04:41,105 INFO L87 Difference]: Start difference. First operand has 1375 states, 802 states have (on average 1.2967581047381547) internal successors, (1040), 826 states have internal predecessors, (1040), 484 states have call successors, (484), 89 states have call predecessors, (484), 88 states have return successors, (479), 475 states have call predecessors, (479), 479 states have call successors, (479) 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) [2024-11-09 05:04:43,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:04:45,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:04:50,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:04:50,475 INFO L93 Difference]: Finished difference Result 3779 states and 5505 transitions. [2024-11-09 05:04:50,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:04:50,481 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 [2024-11-09 05:04:50,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:04:50,526 INFO L225 Difference]: With dead ends: 3779 [2024-11-09 05:04:50,526 INFO L226 Difference]: Without dead ends: 2343 [2024-11-09 05:04:50,544 INFO L431 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 [2024-11-09 05:04:50,547 INFO L432 NwaCegarLoop]: 1798 mSDtfsCounter, 1580 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 3427 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:04:50,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1580 Valid, 3427 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 550 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time] [2024-11-09 05:04:50,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2343 states. [2024-11-09 05:04:50,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2343 to 2339. [2024-11-09 05:04:50,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 1355 states have (on average 1.2678966789667896) internal successors, (1718), 1389 states have internal predecessors, (1718), 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) [2024-11-09 05:04:50,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 3355 transitions. [2024-11-09 05:04:50,850 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 3355 transitions. Word has length 139 [2024-11-09 05:04:50,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:04:50,851 INFO L471 AbstractCegarLoop]: Abstraction has 2339 states and 3355 transitions. [2024-11-09 05:04:50,852 INFO L472 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) [2024-11-09 05:04:50,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 3355 transitions. [2024-11-09 05:04:50,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-09 05:04:50,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:04:50,868 INFO L215 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] [2024-11-09 05:04:50,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:04:50,869 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:04:50,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:04:50,869 INFO L85 PathProgramCache]: Analyzing trace with hash 784165134, now seen corresponding path program 1 times [2024-11-09 05:04:50,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:04:50,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645191779] [2024-11-09 05:04:50,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:04:50,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:05:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:05:03,999 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 05:05:03,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:05:03,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645191779] [2024-11-09 05:05:03,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645191779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:05:04,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:05:04,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:05:04,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050869818] [2024-11-09 05:05:04,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:05:04,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:05:04,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:05:04,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:05:04,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:05:04,004 INFO L87 Difference]: Start difference. First operand 2339 states and 3355 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) [2024-11-09 05:05:06,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:05:08,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:05:15,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:05:15,483 INFO L93 Difference]: Finished difference Result 6101 states and 8719 transitions. [2024-11-09 05:05:15,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:05:15,484 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 [2024-11-09 05:05:15,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:05:15,522 INFO L225 Difference]: With dead ends: 6101 [2024-11-09 05:05:15,522 INFO L226 Difference]: Without dead ends: 3779 [2024-11-09 05:05:15,537 INFO L431 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 [2024-11-09 05:05:15,539 INFO L432 NwaCegarLoop]: 1975 mSDtfsCounter, 1163 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 3567 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:05:15,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1163 Valid, 3567 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 617 Invalid, 2 Unknown, 0 Unchecked, 11.2s Time] [2024-11-09 05:05:15,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3779 states. [2024-11-09 05:05:15,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3779 to 3775. [2024-11-09 05:05:15,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3775 states, 2225 states have (on average 1.270561797752809) internal successors, (2827), 2276 states have internal predecessors, (2827), 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) [2024-11-09 05:05:15,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3775 states to 3775 states and 5356 transitions. [2024-11-09 05:05:15,765 INFO L78 Accepts]: Start accepts. Automaton has 3775 states and 5356 transitions. Word has length 159 [2024-11-09 05:05:15,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:05:15,766 INFO L471 AbstractCegarLoop]: Abstraction has 3775 states and 5356 transitions. [2024-11-09 05:05:15,766 INFO L472 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) [2024-11-09 05:05:15,766 INFO L276 IsEmpty]: Start isEmpty. Operand 3775 states and 5356 transitions. [2024-11-09 05:05:15,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-09 05:05:15,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:05:15,777 INFO L215 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, 1, 1] [2024-11-09 05:05:15,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:05:15,777 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:05:15,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:05:15,778 INFO L85 PathProgramCache]: Analyzing trace with hash -492518280, now seen corresponding path program 1 times [2024-11-09 05:05:15,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:05:15,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060398430] [2024-11-09 05:05:15,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:05:15,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:05:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:05:26,912 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-09 05:05:26,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:05:26,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060398430] [2024-11-09 05:05:26,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060398430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:05:26,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:05:26,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:05:26,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63542754] [2024-11-09 05:05:26,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:05:26,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:05:26,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:05:26,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:05:26,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:05:26,919 INFO L87 Difference]: Start difference. First operand 3775 states and 5356 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-09 05:05:29,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:05:31,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:05:36,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:05:36,710 INFO L93 Difference]: Finished difference Result 10327 states and 14577 transitions. [2024-11-09 05:05:36,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:05:36,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 195 [2024-11-09 05:05:36,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:05:36,764 INFO L225 Difference]: With dead ends: 10327 [2024-11-09 05:05:36,764 INFO L226 Difference]: Without dead ends: 6569 [2024-11-09 05:05:36,783 INFO L431 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 [2024-11-09 05:05:36,784 INFO L432 NwaCegarLoop]: 1635 mSDtfsCounter, 1618 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 3221 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:05:36,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 3221 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 556 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time] [2024-11-09 05:05:36,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6569 states. [2024-11-09 05:05:37,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6569 to 6564. [2024-11-09 05:05:37,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6564 states, 3859 states have (on average 1.2555066079295154) internal successors, (4845), 3957 states have internal predecessors, (4845), 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) [2024-11-09 05:05:37,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6564 states to 6564 states and 9222 transitions. [2024-11-09 05:05:37,172 INFO L78 Accepts]: Start accepts. Automaton has 6564 states and 9222 transitions. Word has length 195 [2024-11-09 05:05:37,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:05:37,174 INFO L471 AbstractCegarLoop]: Abstraction has 6564 states and 9222 transitions. [2024-11-09 05:05:37,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-09 05:05:37,175 INFO L276 IsEmpty]: Start isEmpty. Operand 6564 states and 9222 transitions. [2024-11-09 05:05:37,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-09 05:05:37,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:05:37,181 INFO L215 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] [2024-11-09 05:05:37,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:05:37,183 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:05:37,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:05:37,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1115908186, now seen corresponding path program 1 times [2024-11-09 05:05:37,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:05:37,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306487841] [2024-11-09 05:05:37,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:05:37,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:05:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:05:48,552 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-11-09 05:05:48,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:05:48,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306487841] [2024-11-09 05:05:48,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306487841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:05:48,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:05:48,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:05:48,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713120612] [2024-11-09 05:05:48,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:05:48,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:05:48,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:05:48,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:05:48,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:05:48,561 INFO L87 Difference]: Start difference. First operand 6564 states and 9222 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) [2024-11-09 05:05:50,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:05:52,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:05:59,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:05:59,764 INFO L93 Difference]: Finished difference Result 15344 states and 21538 transitions. [2024-11-09 05:05:59,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:05:59,765 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 [2024-11-09 05:05:59,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:05:59,824 INFO L225 Difference]: With dead ends: 15344 [2024-11-09 05:05:59,825 INFO L226 Difference]: Without dead ends: 8797 [2024-11-09 05:05:59,848 INFO L431 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 [2024-11-09 05:05:59,849 INFO L432 NwaCegarLoop]: 2602 mSDtfsCounter, 1173 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 4186 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:05:59,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 4186 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 747 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2024-11-09 05:05:59,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8797 states. [2024-11-09 05:06:00,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8797 to 8791. [2024-11-09 05:06:00,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8791 states, 5215 states have (on average 1.2561840843720038) internal successors, (6551), 5344 states have internal predecessors, (6551), 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) [2024-11-09 05:06:00,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8791 states to 8791 states and 12276 transitions. [2024-11-09 05:06:00,394 INFO L78 Accepts]: Start accepts. Automaton has 8791 states and 12276 transitions. Word has length 206 [2024-11-09 05:06:00,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:00,395 INFO L471 AbstractCegarLoop]: Abstraction has 8791 states and 12276 transitions. [2024-11-09 05:06:00,396 INFO L472 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) [2024-11-09 05:06:00,397 INFO L276 IsEmpty]: Start isEmpty. Operand 8791 states and 12276 transitions. [2024-11-09 05:06:00,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-09 05:06:00,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:00,415 INFO L215 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] [2024-11-09 05:06:00,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:06:00,416 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:06:00,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:00,416 INFO L85 PathProgramCache]: Analyzing trace with hash 488968825, now seen corresponding path program 1 times [2024-11-09 05:06:00,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:00,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940040595] [2024-11-09 05:06:00,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:00,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:12,270 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2024-11-09 05:06:12,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:12,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940040595] [2024-11-09 05:06:12,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940040595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:06:12,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:06:12,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:06:12,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109525678] [2024-11-09 05:06:12,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:06:12,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:06:12,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:12,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:06:12,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:06:12,274 INFO L87 Difference]: Start difference. First operand 8791 states and 12276 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) [2024-11-09 05:06:14,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:06:16,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:06:22,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:22,062 INFO L93 Difference]: Finished difference Result 17637 states and 24697 transitions. [2024-11-09 05:06:22,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:06:22,063 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 [2024-11-09 05:06:22,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:22,136 INFO L225 Difference]: With dead ends: 17637 [2024-11-09 05:06:22,136 INFO L226 Difference]: Without dead ends: 8863 [2024-11-09 05:06:22,179 INFO L431 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 [2024-11-09 05:06:22,180 INFO L432 NwaCegarLoop]: 1625 mSDtfsCounter, 4 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3246 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:22,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3246 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 523 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time] [2024-11-09 05:06:22,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8863 states. [2024-11-09 05:06:22,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8863 to 8815. [2024-11-09 05:06:22,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8815 states, 5239 states have (on average 1.2550104981866768) internal successors, (6575), 5368 states have internal predecessors, (6575), 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) [2024-11-09 05:06:22,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8815 states to 8815 states and 12300 transitions. [2024-11-09 05:06:22,720 INFO L78 Accepts]: Start accepts. Automaton has 8815 states and 12300 transitions. Word has length 268 [2024-11-09 05:06:22,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:22,721 INFO L471 AbstractCegarLoop]: Abstraction has 8815 states and 12300 transitions. [2024-11-09 05:06:22,722 INFO L472 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) [2024-11-09 05:06:22,722 INFO L276 IsEmpty]: Start isEmpty. Operand 8815 states and 12300 transitions. [2024-11-09 05:06:22,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-11-09 05:06:22,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:22,736 INFO L215 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] [2024-11-09 05:06:22,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:06:22,737 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:06:22,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:22,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1809724297, now seen corresponding path program 1 times [2024-11-09 05:06:22,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:22,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671696845] [2024-11-09 05:06:22,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:22,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:35,311 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2024-11-09 05:06:35,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:35,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671696845] [2024-11-09 05:06:35,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671696845] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:06:35,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339207715] [2024-11-09 05:06:35,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:35,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:06:35,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:06:35,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:06:35,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa0c1ae-f089-4c40-b8b4-345a6a735a81/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:06:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:48,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 4790 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:06:48,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:06:48,596 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2024-11-09 05:06:48,597 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:06:50,560 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2024-11-09 05:06:50,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339207715] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:06:50,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [137882330] [2024-11-09 05:06:50,598 INFO L159 IcfgInterpreter]: Started Sifa with 147 locations of interest [2024-11-09 05:06:50,599 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:06:50,603 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:06:50,610 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:06:50,610 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs