./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-alteon-acenic.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c26285c798d9eae93470e6619d316c691c81cc1a0579ebf111c5d2cbbd8c7126 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:24:44,770 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:24:44,881 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:24:44,887 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:24:44,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:24:44,936 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:24:44,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:24:44,938 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:24:44,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:24:44,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:24:44,941 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:24:44,941 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:24:44,942 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:24:44,943 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:24:44,943 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:24:44,944 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:24:44,945 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:24:44,946 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:24:44,946 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:24:44,947 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:24:44,948 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:24:44,949 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:24:44,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:24:44,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:24:44,952 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:24:44,952 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:24:44,953 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:24:44,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:24:44,954 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:24:44,955 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:24:44,956 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:24:44,956 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:24:44,957 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:24:44,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:44,958 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:24:44,959 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:24:44,979 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:24:44,980 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:24:44,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:24:44,981 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:24:44,981 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:24:44,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:24:44,982 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_3d0775c8-5ec3-4504-a234-35b5cf9ff750/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c26285c798d9eae93470e6619d316c691c81cc1a0579ebf111c5d2cbbd8c7126 [2023-11-19 05:24:45,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:24:45,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:24:45,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:24:45,450 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:24:45,451 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:24:45,452 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i [2023-11-19 05:24:49,145 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:24:50,003 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:24:50,004 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i [2023-11-19 05:24:50,064 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/bin/utaipan-verify-t7M7D8N6sZ/data/fe7228045/815481e10bfe412ea737a57bd7c8f5ba/FLAG428053b5f [2023-11-19 05:24:50,083 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/bin/utaipan-verify-t7M7D8N6sZ/data/fe7228045/815481e10bfe412ea737a57bd7c8f5ba [2023-11-19 05:24:50,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:24:50,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:24:50,090 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:50,090 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:24:50,099 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:24:50,100 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:50" (1/1) ... [2023-11-19 05:24:50,101 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10afa03c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:50, skipping insertion in model container [2023-11-19 05:24:50,102 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:50" (1/1) ... [2023-11-19 05:24:50,342 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:24:54,444 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i[373388,373401] [2023-11-19 05:24:54,451 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i[373533,373546] [2023-11-19 05:24:54,475 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:54,554 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:24:54,744 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"); [6172] [2023-11-19 05:24:54,747 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)); [6179] [2023-11-19 05:24:54,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [6186] [2023-11-19 05:24:54,751 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)); [6261-6262] [2023-11-19 05:24:54,752 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"); [6267-6269] [2023-11-19 05:24:54,753 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" (809), "i" (12UL)); [6294-6295] [2023-11-19 05:24:54,753 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" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [6300-6302] [2023-11-19 05:24:54,754 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" (814), "i" (12UL)); [6326-6327] [2023-11-19 05:24:54,755 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" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [6332-6334] [2023-11-19 05:24:54,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [6360] [2023-11-19 05:24:54,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("661:\n\tprefetcht0 (%1)\n662:\n.pushsection .altinstructions,\"a\"\n .long 661b - .\n .long 6631f - .\n .word (1*32+31)\n .byte 662b-661b\n .byte 6641f-6631f\n.popsection\n.pushsection .discard,\"aw\",@progbits\n .byte 0xff + (6641f-6631f) - (662b-661b)\n.popsection\n.pushsection .altinstr_replacement, \"ax\"\n6631:\n\tprefetchw (%1)\n6641:\n\t.popsection": : "i" (0), "r" (x)); [6376-6377] [2023-11-19 05:24:54,758 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; addl %1,%0": "+m" (v->counter): "ir" (i)); [6397] [2023-11-19 05:24:54,758 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; subl %1,%0": "+m" (v->counter): "ir" (i)); [6404] [2023-11-19 05:24:54,759 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0": "+m" (v->counter)); [6411] [2023-11-19 05:24:54,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [6428] [2023-11-19 05:24:54,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [6435] [2023-11-19 05:24:54,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (79), "i" (12UL)); [6538-6539] [2023-11-19 05:24:54,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (91), "i" (12UL)); [6567-6568] [2023-11-19 05:24:54,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7173] [2023-11-19 05:24:54,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7183] [2023-11-19 05:24:54,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7357] [2023-11-19 05:24:54,891 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8104] [2023-11-19 05:24:54,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8361] [2023-11-19 05:24:54,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8674] [2023-11-19 05:24:54,924 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8744] [2023-11-19 05:24:54,933 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8814] [2023-11-19 05:24:54,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8875] [2023-11-19 05:24:54,943 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8981] [2023-11-19 05:24:54,946 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [9034] [2023-11-19 05:24:54,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9177] [2023-11-19 05:24:54,971 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9664] [2023-11-19 05:24:54,972 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [9685] [2023-11-19 05:24:54,985 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9906] [2023-11-19 05:24:55,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10256] [2023-11-19 05:24:55,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10261] [2023-11-19 05:24:55,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10266] [2023-11-19 05:24:55,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10271] [2023-11-19 05:24:55,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10288] [2023-11-19 05:24:55,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10304] [2023-11-19 05:24:55,027 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10309] [2023-11-19 05:24:55,028 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10314] [2023-11-19 05:24:55,030 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10338] [2023-11-19 05:24:55,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10343] [2023-11-19 05:24:55,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10348] [2023-11-19 05:24:55,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10352] [2023-11-19 05:24:55,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10367] [2023-11-19 05:24:55,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10372] [2023-11-19 05:24:55,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10377] [2023-11-19 05:24:55,036 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10382] [2023-11-19 05:24:55,036 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10386] [2023-11-19 05:24:55,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10534] [2023-11-19 05:24:55,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10538] [2023-11-19 05:24:55,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10543] [2023-11-19 05:24:55,043 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10549] [2023-11-19 05:24:55,043 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10556] [2023-11-19 05:24:55,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10571] [2023-11-19 05:24:55,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10580] [2023-11-19 05:24:55,152 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i[373388,373401] [2023-11-19 05:24:55,153 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i[373533,373546] [2023-11-19 05:24:55,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:55,479 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:24:55,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:55 WrapperNode [2023-11-19 05:24:55,481 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:55,482 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:55,482 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:24:55,483 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:24:55,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:55" (1/1) ... [2023-11-19 05:24:55,675 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:55" (1/1) ... [2023-11-19 05:24:56,007 INFO L138 Inliner]: procedures = 424, calls = 2506, calls flagged for inlining = 186, calls inlined = 170, statements flattened = 6492 [2023-11-19 05:24:56,008 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:56,009 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:24:56,009 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:24:56,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:24:56,021 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:55" (1/1) ... [2023-11-19 05:24:56,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:55" (1/1) ... [2023-11-19 05:24:56,070 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:55" (1/1) ... [2023-11-19 05:24:56,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:55" (1/1) ... [2023-11-19 05:24:56,360 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:55" (1/1) ... [2023-11-19 05:24:56,412 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:55" (1/1) ... [2023-11-19 05:24:56,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:55" (1/1) ... [2023-11-19 05:24:56,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:55" (1/1) ... [2023-11-19 05:24:56,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:24:56,557 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:24:56,557 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:24:56,557 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:24:56,558 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:55" (1/1) ... [2023-11-19 05:24:56,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:56,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:24:56,599 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:24:56,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0775c8-5ec3-4504-a234-35b5cf9ff750/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:24:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-19 05:24:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-19 05:24:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:24:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:24:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2023-11-19 05:24:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2023-11-19 05:24:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 05:24:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 05:24:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:24:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:24:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-11-19 05:24:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-11-19 05:24:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2023-11-19 05:24:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2023-11-19 05:24:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 05:24:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 05:24:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_start [2023-11-19 05:24:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_start [2023-11-19 05:24:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 05:24:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 05:24:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-19 05:24:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-19 05:24:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure ace_load_jumbo_rx_ring [2023-11-19 05:24:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_load_jumbo_rx_ring [2023-11-19 05:24:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure ace_load_std_rx_ring [2023-11-19 05:24:56,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_load_std_rx_ring [2023-11-19 05:24:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2023-11-19 05:24:56,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2023-11-19 05:24:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 05:24:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 05:24:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 05:24:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 05:24:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-19 05:24:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-19 05:24:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 05:24:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 05:24:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 05:24:56,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 05:24:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-11-19 05:24:56,663 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-11-19 05:24:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure ace_set_multicast_list [2023-11-19 05:24:56,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_set_multicast_list [2023-11-19 05:24:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure ace_set_txprd [2023-11-19 05:24:56,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_set_txprd [2023-11-19 05:24:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_check_ack [2023-11-19 05:24:56,664 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_check_ack [2023-11-19 05:24:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:24:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2023-11-19 05:24:56,665 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2023-11-19 05:24:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2023-11-19 05:24:56,666 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2023-11-19 05:24:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure ace_set_rxtx_parms [2023-11-19 05:24:56,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_set_rxtx_parms [2023-11-19 05:24:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 05:24:56,667 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 05:24:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom_byte [2023-11-19 05:24:56,667 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom_byte [2023-11-19 05:24:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:24:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 05:24:56,668 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 05:24:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:24:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 05:24:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 05:24:56,669 INFO L130 BoogieDeclarations]: Found specification of procedure tx_space [2023-11-19 05:24:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_space [2023-11-19 05:24:56,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:24:56,669 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 05:24:56,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 05:24:56,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-11-19 05:24:56,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-11-19 05:24:56,670 INFO L130 BoogieDeclarations]: Found specification of procedure set_aceaddr [2023-11-19 05:24:56,671 INFO L138 BoogieDeclarations]: Found implementation of procedure set_aceaddr [2023-11-19 05:24:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 05:24:56,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 05:24:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 05:24:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 05:24:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 05:24:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 05:24:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-19 05:24:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-19 05:24:56,673 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 05:24:56,673 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 05:24:56,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:24:56,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 05:24:56,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 05:24:56,674 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2023-11-19 05:24:56,674 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2023-11-19 05:24:56,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 05:24:56,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 05:24:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:24:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 05:24:56,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 05:24:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 05:24:56,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 05:24:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:24:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:24:56,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:24:56,677 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 05:24:56,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 05:24:56,677 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_prep [2023-11-19 05:24:56,678 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_prep [2023-11-19 05:24:56,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-19 05:24:56,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-19 05:24:56,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-19 05:24:56,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-19 05:24:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure ace_issue_cmd [2023-11-19 05:24:56,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_issue_cmd [2023-11-19 05:24:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 05:24:56,679 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 05:24:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 05:24:56,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 05:24:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2023-11-19 05:24:56,680 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2023-11-19 05:24:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 05:24:56,681 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 05:24:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-11-19 05:24:56,681 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-11-19 05:24:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:24:56,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:24:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-19 05:24:56,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-19 05:24:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure ace_load_mini_rx_ring [2023-11-19 05:24:56,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_load_mini_rx_ring [2023-11-19 05:24:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:24:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:24:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:24:56,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:24:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2023-11-19 05:24:56,684 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2023-11-19 05:24:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2023-11-19 05:24:56,684 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2023-11-19 05:24:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-19 05:24:56,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-19 05:24:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2023-11-19 05:24:56,685 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2023-11-19 05:24:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-19 05:24:56,686 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-19 05:24:56,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:24:56,686 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:24:56,686 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 05:24:56,687 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 05:24:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2023-11-19 05:24:56,687 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2023-11-19 05:24:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-19 05:24:56,687 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-19 05:24:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure acenic_remove_one [2023-11-19 05:24:56,688 INFO L138 BoogieDeclarations]: Found implementation of procedure acenic_remove_one [2023-11-19 05:24:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 05:24:56,688 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 05:24:56,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:24:56,689 INFO L130 BoogieDeclarations]: Found specification of procedure ace_init_cleanup [2023-11-19 05:24:56,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_init_cleanup [2023-11-19 05:24:56,689 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-11-19 05:24:56,690 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-11-19 05:24:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 05:24:56,690 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 05:24:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:24:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:24:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:24:56,691 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:24:56,692 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 05:24:56,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 05:24:56,692 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2023-11-19 05:24:56,692 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2023-11-19 05:24:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 05:24:56,693 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 05:24:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 05:24:56,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 05:24:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 05:24:56,694 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 05:24:56,694 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 05:24:56,694 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 05:24:56,694 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2023-11-19 05:24:56,695 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2023-11-19 05:24:56,695 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 05:24:56,695 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 05:24:56,695 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:24:56,695 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:24:56,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:24:56,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:24:56,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:24:56,696 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-19 05:24:56,697 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-19 05:24:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure ace_open [2023-11-19 05:24:56,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_open [2023-11-19 05:24:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure ace_close [2023-11-19 05:24:56,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_close [2023-11-19 05:24:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 05:24:56,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 05:24:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure prefetchw [2023-11-19 05:24:56,698 INFO L138 BoogieDeclarations]: Found implementation of procedure prefetchw [2023-11-19 05:24:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure ace_map_tx_skb [2023-11-19 05:24:56,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_map_tx_skb [2023-11-19 05:24:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure ace_load_tx_bd [2023-11-19 05:24:56,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_load_tx_bd [2023-11-19 05:24:56,700 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2023-11-19 05:24:56,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2023-11-19 05:24:56,700 INFO L130 BoogieDeclarations]: Found specification of procedure ace_watchdog [2023-11-19 05:24:56,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_watchdog [2023-11-19 05:24:56,700 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 05:24:56,701 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 05:24:56,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:24:56,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 05:24:56,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 05:24:56,702 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2023-11-19 05:24:56,702 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2023-11-19 05:24:57,762 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:24:57,777 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:24:58,096 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:25:03,760 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 05:25:03,976 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:25:08,087 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:25:08,087 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 05:25:08,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:25:08 BoogieIcfgContainer [2023-11-19 05:25:08,109 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:25:08,114 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:25:08,114 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:25:08,119 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:25:08,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:24:50" (1/3) ... [2023-11-19 05:25:08,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283dca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:25:08, skipping insertion in model container [2023-11-19 05:25:08,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:55" (2/3) ... [2023-11-19 05:25:08,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283dca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:25:08, skipping insertion in model container [2023-11-19 05:25:08,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:25:08" (3/3) ... [2023-11-19 05:25:08,129 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i [2023-11-19 05:25:08,154 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:25:08,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:25:08,303 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:25:08,314 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e1a9c2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:25:08,315 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:25:08,334 INFO L276 IsEmpty]: Start isEmpty. Operand has 1748 states, 989 states have (on average 1.2901921132457028) internal successors, (1276), 1049 states have internal predecessors, (1276), 664 states have call successors, (664), 95 states have call predecessors, (664), 94 states have return successors, (659), 644 states have call predecessors, (659), 659 states have call successors, (659) [2023-11-19 05:25:08,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 05:25:08,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:25:08,416 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 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] [2023-11-19 05:25:08,416 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:25:08,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:25:08,426 INFO L85 PathProgramCache]: Analyzing trace with hash 208698771, now seen corresponding path program 1 times [2023-11-19 05:25:08,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:25:08,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819673514] [2023-11-19 05:25:08,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:08,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:25:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:09,531 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2023-11-19 05:25:09,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:25:09,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819673514] [2023-11-19 05:25:09,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819673514] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:25:09,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:25:09,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:25:09,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586296608] [2023-11-19 05:25:09,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:25:09,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:25:09,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:25:09,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:25:09,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:25:09,601 INFO L87 Difference]: Start difference. First operand has 1748 states, 989 states have (on average 1.2901921132457028) internal successors, (1276), 1049 states have internal predecessors, (1276), 664 states have call successors, (664), 95 states have call predecessors, (664), 94 states have return successors, (659), 644 states have call predecessors, (659), 659 states have call successors, (659) Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-19 05:25:13,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:14,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:25:14,432 INFO L93 Difference]: Finished difference Result 4936 states and 7364 transitions. [2023-11-19 05:25:14,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:25:14,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2023-11-19 05:25:14,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:25:14,493 INFO L225 Difference]: With dead ends: 4936 [2023-11-19 05:25:14,494 INFO L226 Difference]: Without dead ends: 3140 [2023-11-19 05:25:14,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:25:14,514 INFO L413 NwaCegarLoop]: 2338 mSDtfsCounter, 2222 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2222 SdHoareTripleChecker+Valid, 4520 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:25:14,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2222 Valid, 4520 Invalid, 651 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 643 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2023-11-19 05:25:14,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2023-11-19 05:25:14,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 3136. [2023-11-19 05:25:14,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 1786 states have (on average 1.2754759238521836) internal successors, (2278), 1890 states have internal predecessors, (2278), 1174 states have call successors, (1174), 176 states have call predecessors, (1174), 175 states have return successors, (1175), 1145 states have call predecessors, (1175), 1174 states have call successors, (1175) [2023-11-19 05:25:14,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 4627 transitions. [2023-11-19 05:25:15,002 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 4627 transitions. Word has length 113 [2023-11-19 05:25:15,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:25:15,005 INFO L495 AbstractCegarLoop]: Abstraction has 3136 states and 4627 transitions. [2023-11-19 05:25:15,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-19 05:25:15,006 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 4627 transitions. [2023-11-19 05:25:15,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-19 05:25:15,019 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:25:15,020 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 3, 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] [2023-11-19 05:25:15,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:25:15,021 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:25:15,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:25:15,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1369721621, now seen corresponding path program 1 times [2023-11-19 05:25:15,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:25:15,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523626783] [2023-11-19 05:25:15,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:15,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:25:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:15,802 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-11-19 05:25:15,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:25:15,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523626783] [2023-11-19 05:25:15,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523626783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:25:15,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:25:15,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:25:15,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241631158] [2023-11-19 05:25:15,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:25:15,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:25:15,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:25:15,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:25:15,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:25:15,807 INFO L87 Difference]: Start difference. First operand 3136 states and 4627 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-19 05:25:18,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:19,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:25:19,599 INFO L93 Difference]: Finished difference Result 9079 states and 13380 transitions. [2023-11-19 05:25:19,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:25:19,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 136 [2023-11-19 05:25:19,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:25:19,659 INFO L225 Difference]: With dead ends: 9079 [2023-11-19 05:25:19,659 INFO L226 Difference]: Without dead ends: 5956 [2023-11-19 05:25:19,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:25:19,681 INFO L413 NwaCegarLoop]: 2613 mSDtfsCounter, 2266 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 4818 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:25:19,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2266 Valid, 4818 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-19 05:25:19,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5956 states. [2023-11-19 05:25:20,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5956 to 5950. [2023-11-19 05:25:20,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5950 states, 3369 states have (on average 1.2674384090234492) internal successors, (4270), 3564 states have internal predecessors, (4270), 2238 states have call successors, (2238), 344 states have call predecessors, (2238), 342 states have return successors, (2253), 2176 states have call predecessors, (2253), 2238 states have call successors, (2253) [2023-11-19 05:25:20,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5950 states to 5950 states and 8761 transitions. [2023-11-19 05:25:20,466 INFO L78 Accepts]: Start accepts. Automaton has 5950 states and 8761 transitions. Word has length 136 [2023-11-19 05:25:20,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:25:20,468 INFO L495 AbstractCegarLoop]: Abstraction has 5950 states and 8761 transitions. [2023-11-19 05:25:20,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-19 05:25:20,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5950 states and 8761 transitions. [2023-11-19 05:25:20,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-19 05:25:20,476 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:25:20,476 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 5, 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] [2023-11-19 05:25:20,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:25:20,477 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:25:20,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:25:20,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1198239755, now seen corresponding path program 1 times [2023-11-19 05:25:20,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:25:20,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736201874] [2023-11-19 05:25:20,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:20,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:25:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:21,166 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2023-11-19 05:25:21,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:25:21,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736201874] [2023-11-19 05:25:21,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736201874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:25:21,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:25:21,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:25:21,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255510479] [2023-11-19 05:25:21,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:25:21,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:25:21,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:25:21,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:25:21,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:25:21,178 INFO L87 Difference]: Start difference. First operand 5950 states and 8761 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-19 05:25:24,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:25:24,969 INFO L93 Difference]: Finished difference Result 13513 states and 19792 transitions. [2023-11-19 05:25:24,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:25:24,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 146 [2023-11-19 05:25:24,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:25:25,059 INFO L225 Difference]: With dead ends: 13513 [2023-11-19 05:25:25,059 INFO L226 Difference]: Without dead ends: 7576 [2023-11-19 05:25:25,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:25:25,106 INFO L413 NwaCegarLoop]: 2817 mSDtfsCounter, 972 mSDsluCounter, 2179 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:25:25,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 4996 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-19 05:25:25,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7576 states. [2023-11-19 05:25:25,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7576 to 7570. [2023-11-19 05:25:26,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7570 states, 4375 states have (on average 1.2694857142857143) internal successors, (5554), 4646 states have internal predecessors, (5554), 2708 states have call successors, (2708), 488 states have call predecessors, (2708), 486 states have return successors, (2723), 2630 states have call predecessors, (2723), 2708 states have call successors, (2723) [2023-11-19 05:25:26,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7570 states to 7570 states and 10985 transitions. [2023-11-19 05:25:26,058 INFO L78 Accepts]: Start accepts. Automaton has 7570 states and 10985 transitions. Word has length 146 [2023-11-19 05:25:26,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:25:26,061 INFO L495 AbstractCegarLoop]: Abstraction has 7570 states and 10985 transitions. [2023-11-19 05:25:26,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-19 05:25:26,062 INFO L276 IsEmpty]: Start isEmpty. Operand 7570 states and 10985 transitions. [2023-11-19 05:25:26,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-19 05:25:26,068 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:25:26,068 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 5, 4, 4, 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] [2023-11-19 05:25:26,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:25:26,069 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:25:26,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:25:26,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1173561332, now seen corresponding path program 1 times [2023-11-19 05:25:26,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:25:26,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021078334] [2023-11-19 05:25:26,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:26,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:25:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:26,640 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2023-11-19 05:25:26,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:25:26,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021078334] [2023-11-19 05:25:26,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021078334] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:25:26,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:25:26,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:25:26,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390015736] [2023-11-19 05:25:26,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:25:26,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:25:26,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:25:26,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:25:26,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:25:26,648 INFO L87 Difference]: Start difference. First operand 7570 states and 10985 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-19 05:25:29,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []