./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.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_fb848d0e-44fc-4524-82b4-b8d79eabec14/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb848d0e-44fc-4524-82b4-b8d79eabec14/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_fb848d0e-44fc-4524-82b4-b8d79eabec14/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb848d0e-44fc-4524-82b4-b8d79eabec14/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb848d0e-44fc-4524-82b4-b8d79eabec14/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_fb848d0e-44fc-4524-82b4-b8d79eabec14/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 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:47:58,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:47:58,789 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb848d0e-44fc-4524-82b4-b8d79eabec14/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:47:58,795 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:47:58,796 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:47:58,825 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:47:58,826 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:47:58,827 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:47:58,828 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:47:58,828 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:47:58,829 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:47:58,830 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:47:58,830 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:47:58,831 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:47:58,831 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:47:58,832 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:47:58,833 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:47:58,833 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:47:58,834 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:47:58,834 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:47:58,835 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:47:58,836 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:47:58,837 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:47:58,838 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:47:58,838 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:47:58,839 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:47:58,839 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:47:58,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:47:58,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:47:58,841 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:47:58,841 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:47:58,842 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:47:58,842 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:47:58,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:47:58,843 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:47:58,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:47:58,844 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:47:58,845 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:47:58,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:47:58,845 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:47:58,845 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:47:58,846 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:47:58,846 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_fb848d0e-44fc-4524-82b4-b8d79eabec14/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb848d0e-44fc-4524-82b4-b8d79eabec14/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 [2023-11-19 04:47:59,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:47:59,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:47:59,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:47:59,149 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:47:59,150 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:47:59,151 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb848d0e-44fc-4524-82b4-b8d79eabec14/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2023-11-19 04:48:02,303 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:48:03,061 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:48:03,063 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb848d0e-44fc-4524-82b4-b8d79eabec14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2023-11-19 04:48:03,123 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb848d0e-44fc-4524-82b4-b8d79eabec14/bin/utaipan-verify-t7M7D8N6sZ/data/d5cefab11/f8a710201e8143fca3a511108bece1bc/FLAG13d9057ce [2023-11-19 04:48:03,142 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb848d0e-44fc-4524-82b4-b8d79eabec14/bin/utaipan-verify-t7M7D8N6sZ/data/d5cefab11/f8a710201e8143fca3a511108bece1bc [2023-11-19 04:48:03,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:48:03,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:48:03,158 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:48:03,158 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:48:03,164 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:48:03,165 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:03" (1/1) ... [2023-11-19 04:48:03,166 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31407b20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:03, skipping insertion in model container [2023-11-19 04:48:03,166 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:03" (1/1) ... [2023-11-19 04:48:03,383 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:48:06,677 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_fb848d0e-44fc-4524-82b4-b8d79eabec14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334651,334664] [2023-11-19 04:48:06,684 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_fb848d0e-44fc-4524-82b4-b8d79eabec14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334820,334833] [2023-11-19 04:48:06,684 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_fb848d0e-44fc-4524-82b4-b8d79eabec14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334987,335000] [2023-11-19 04:48:06,686 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_fb848d0e-44fc-4524-82b4-b8d79eabec14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335155,335168] [2023-11-19 04:48:06,730 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:48:06,801 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:48:07,026 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"); [5286] [2023-11-19 04:48:07,028 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)); [5293] [2023-11-19 04:48:07,028 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5300] [2023-11-19 04:48:07,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5339-5340] [2023-11-19 04:48:07,032 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"); [5345-5347] [2023-11-19 04:48:07,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (809), "i" (12UL)); [5372-5373] [2023-11-19 04:48:07,033 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"); [5378-5380] [2023-11-19 04:48:07,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (814), "i" (12UL)); [5404-5405] [2023-11-19 04:48:07,035 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"); [5410-5412] [2023-11-19 04:48:07,039 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [5564] [2023-11-19 04:48:07,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5572] [2023-11-19 04:48:07,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5580] [2023-11-19 04:48:07,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [5587] [2023-11-19 04:48:07,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5594] [2023-11-19 04:48:07,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5601] [2023-11-19 04:48:07,050 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)); [5696-5697] [2023-11-19 04:48:07,055 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)); [5730-5731] [2023-11-19 04:48:07,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/netdevice.h"), "i" (502), "i" (12UL)); [5966-5967] [2023-11-19 04:48:07,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5973] [2023-11-19 04:48:07,115 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6670] [2023-11-19 04:48:07,155 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7126] [2023-11-19 04:48:07,192 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7718] [2023-11-19 04:48:07,377 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_fb848d0e-44fc-4524-82b4-b8d79eabec14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334651,334664] [2023-11-19 04:48:07,377 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_fb848d0e-44fc-4524-82b4-b8d79eabec14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334820,334833] [2023-11-19 04:48:07,378 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_fb848d0e-44fc-4524-82b4-b8d79eabec14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334987,335000] [2023-11-19 04:48:07,379 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_fb848d0e-44fc-4524-82b4-b8d79eabec14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335155,335168] [2023-11-19 04:48:07,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:48:07,663 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:48:07,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:07 WrapperNode [2023-11-19 04:48:07,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:48:07,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:48:07,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:48:07,666 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:48:07,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:07" (1/1) ... [2023-11-19 04:48:07,795 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:07" (1/1) ... [2023-11-19 04:48:07,977 INFO L138 Inliner]: procedures = 455, calls = 1845, calls flagged for inlining = 226, calls inlined = 204, statements flattened = 5150 [2023-11-19 04:48:07,978 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:48:07,978 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:48:07,979 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:48:07,979 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:48:07,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:07" (1/1) ... [2023-11-19 04:48:07,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:07" (1/1) ... [2023-11-19 04:48:08,042 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:07" (1/1) ... [2023-11-19 04:48:08,042 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:07" (1/1) ... [2023-11-19 04:48:08,193 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:07" (1/1) ... [2023-11-19 04:48:08,259 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:07" (1/1) ... [2023-11-19 04:48:08,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:07" (1/1) ... [2023-11-19 04:48:08,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:07" (1/1) ... [2023-11-19 04:48:08,370 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:48:08,372 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:48:08,372 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:48:08,372 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:48:08,373 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:07" (1/1) ... [2023-11-19 04:48:08,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:48:08,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb848d0e-44fc-4524-82b4-b8d79eabec14/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:48:08,414 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb848d0e-44fc-4524-82b4-b8d79eabec14/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:48:08,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb848d0e-44fc-4524-82b4-b8d79eabec14/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:48:08,465 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 04:48:08,465 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 04:48:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_stats [2023-11-19 04:48:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_stats [2023-11-19 04:48:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:48:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:48:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-19 04:48:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-19 04:48:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 04:48:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 04:48:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:48:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:48:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 04:48:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 04:48:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:48:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:48:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-11-19 04:48:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-11-19 04:48:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 04:48:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 04:48:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 04:48:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 04:48:08,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2023-11-19 04:48:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2023-11-19 04:48:08,471 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-19 04:48:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-19 04:48:08,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 04:48:08,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 04:48:08,472 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 04:48:08,472 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 04:48:08,472 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 04:48:08,472 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 04:48:08,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:48:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:48:08,473 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-11-19 04:48:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-11-19 04:48:08,474 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 04:48:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 04:48:08,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:48:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-19 04:48:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-19 04:48:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-19 04:48:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-19 04:48:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_tx_timeout [2023-11-19 04:48:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_tx_timeout [2023-11-19 04:48:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 04:48:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 04:48:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_read [2023-11-19 04:48:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_read [2023-11-19 04:48:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:48:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_nway_reset [2023-11-19 04:48:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_nway_reset [2023-11-19 04:48:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 04:48:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 04:48:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_rx_buff_len [2023-11-19 04:48:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_rx_buff_len [2023-11-19 04:48:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:48:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_open [2023-11-19 04:48:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_open [2023-11-19 04:48:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 04:48:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 04:48:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:48:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 04:48:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 04:48:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 04:48:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 04:48:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 04:48:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 04:48:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 04:48:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 04:48:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 04:48:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 04:48:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 04:48:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 04:48:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_write_phy [2023-11-19 04:48:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_write_phy [2023-11-19 04:48:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:48:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:48:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:48:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 04:48:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 04:48:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 04:48:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 04:48:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_phy [2023-11-19 04:48:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_phy [2023-11-19 04:48:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-19 04:48:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-19 04:48:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:48:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 04:48:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 04:48:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 04:48:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 04:48:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:48:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:48:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:48:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-19 04:48:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-19 04:48:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_remove_one [2023-11-19 04:48:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_remove_one [2023-11-19 04:48:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-19 04:48:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-19 04:48:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2023-11-19 04:48:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2023-11-19 04:48:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:48:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:48:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_free_skbs [2023-11-19 04:48:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_free_skbs [2023-11-19 04:48:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 04:48:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 04:48:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 04:48:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 04:48:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 04:48:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 04:48:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2023-11-19 04:48:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2023-11-19 04:48:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-11-19 04:48:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-11-19 04:48:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-11-19 04:48:08,494 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-11-19 04:48:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:48:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:48:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_close [2023-11-19 04:48:08,498 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_close [2023-11-19 04:48:08,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:48:08,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:48:08,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:48:08,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:48:08,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:48:08,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:48:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-19 04:48:08,502 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-19 04:48:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_write [2023-11-19 04:48:08,509 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_write [2023-11-19 04:48:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_mib [2023-11-19 04:48:08,509 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_mib [2023-11-19 04:48:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 04:48:08,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 04:48:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_interrupt [2023-11-19 04:48:08,510 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_interrupt [2023-11-19 04:48:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 04:48:08,511 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 04:48:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_coalesce [2023-11-19 04:48:08,511 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_coalesce [2023-11-19 04:48:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 04:48:08,511 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 04:48:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-19 04:48:08,511 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-19 04:48:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 04:48:08,512 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 04:48:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-11-19 04:48:08,512 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-11-19 04:48:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:48:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-11-19 04:48:08,512 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-11-19 04:48:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 04:48:08,513 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 04:48:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:48:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_disable_interrupt [2023-11-19 04:48:08,513 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_disable_interrupt [2023-11-19 04:48:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2023-11-19 04:48:08,514 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2023-11-19 04:48:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_multicast_list [2023-11-19 04:48:08,514 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_multicast_list [2023-11-19 04:48:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:48:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_resume [2023-11-19 04:48:08,514 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_resume [2023-11-19 04:48:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:48:08,515 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:48:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 04:48:08,515 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 04:48:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 04:48:08,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 04:48:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-19 04:48:08,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-19 04:48:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_66 [2023-11-19 04:48:08,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_66 [2023-11-19 04:48:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_restart [2023-11-19 04:48:08,516 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_restart [2023-11-19 04:48:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-19 04:48:08,516 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-19 04:48:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 04:48:08,517 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 04:48:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 04:48:08,517 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 04:48:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-19 04:48:08,517 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-19 04:48:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 04:48:08,517 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 04:48:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:48:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:48:08,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:48:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_stop_chip [2023-11-19 04:48:08,518 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_stop_chip [2023-11-19 04:48:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-19 04:48:08,518 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-19 04:48:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_68 [2023-11-19 04:48:08,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_68 [2023-11-19 04:48:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_poll [2023-11-19 04:48:08,519 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_poll [2023-11-19 04:48:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_amd8111e_priv [2023-11-19 04:48:08,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_amd8111e_priv [2023-11-19 04:48:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 04:48:08,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 04:48:08,520 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-19 04:48:08,520 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-19 04:48:08,520 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_regs_len [2023-11-19 04:48:08,520 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_regs_len [2023-11-19 04:48:08,520 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 04:48:08,520 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 04:48:08,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:48:08,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_amd8111e_priv [2023-11-19 04:48:08,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_amd8111e_priv [2023-11-19 04:48:08,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 04:48:08,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 04:48:09,373 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:48:09,382 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:48:10,106 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:48:13,186 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 04:48:13,359 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:48:15,836 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:48:15,836 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 04:48:15,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:15 BoogieIcfgContainer [2023-11-19 04:48:15,854 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:48:15,858 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:48:15,859 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:48:15,862 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:48:15,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:48:03" (1/3) ... [2023-11-19 04:48:15,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51cc0eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:48:15, skipping insertion in model container [2023-11-19 04:48:15,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:07" (2/3) ... [2023-11-19 04:48:15,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51cc0eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:48:15, skipping insertion in model container [2023-11-19 04:48:15,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:15" (3/3) ... [2023-11-19 04:48:15,867 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2023-11-19 04:48:15,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:48:15,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 04:48:16,001 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:48:16,009 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;@419a2682, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:48:16,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 04:48:16,022 INFO L276 IsEmpty]: Start isEmpty. Operand has 1448 states, 810 states have (on average 1.2753086419753086) internal successors, (1033), 838 states have internal predecessors, (1033), 537 states have call successors, (537), 99 states have call predecessors, (537), 98 states have return successors, (532), 525 states have call predecessors, (532), 532 states have call successors, (532) [2023-11-19 04:48:16,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-19 04:48:16,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:16,041 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:48:16,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:48:16,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:16,048 INFO L85 PathProgramCache]: Analyzing trace with hash 39445164, now seen corresponding path program 1 times [2023-11-19 04:48:16,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:16,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459537590] [2023-11-19 04:48:16,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:16,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:17,131 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-11-19 04:48:17,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:48:17,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459537590] [2023-11-19 04:48:17,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459537590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:48:17,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:48:17,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:48:17,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301631593] [2023-11-19 04:48:17,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:48:17,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:48:17,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:48:17,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:48:17,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:48:17,203 INFO L87 Difference]: Start difference. First operand has 1448 states, 810 states have (on average 1.2753086419753086) internal successors, (1033), 838 states have internal predecessors, (1033), 537 states have call successors, (537), 99 states have call predecessors, (537), 98 states have return successors, (532), 525 states have call predecessors, (532), 532 states have call successors, (532) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 04:48:20,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:48:20,292 INFO L93 Difference]: Finished difference Result 4243 states and 6284 transitions. [2023-11-19 04:48:20,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:48:20,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 117 [2023-11-19 04:48:20,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:48:20,341 INFO L225 Difference]: With dead ends: 4243 [2023-11-19 04:48:20,341 INFO L226 Difference]: Without dead ends: 2806 [2023-11-19 04:48:20,360 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 04:48:20,364 INFO L413 NwaCegarLoop]: 1821 mSDtfsCounter, 2008 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2008 SdHoareTripleChecker+Valid, 3602 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:48:20,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2008 Valid, 3602 Invalid, 587 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-19 04:48:20,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2023-11-19 04:48:20,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2802. [2023-11-19 04:48:20,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2802 states, 1577 states have (on average 1.2694990488268865) internal successors, (2002), 1631 states have internal predecessors, (2002), 1029 states have call successors, (1029), 194 states have call predecessors, (1029), 193 states have return successors, (1026), 1012 states have call predecessors, (1026), 1026 states have call successors, (1026) [2023-11-19 04:48:20,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 4057 transitions. [2023-11-19 04:48:20,768 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 4057 transitions. Word has length 117 [2023-11-19 04:48:20,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:48:20,774 INFO L495 AbstractCegarLoop]: Abstraction has 2802 states and 4057 transitions. [2023-11-19 04:48:20,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 04:48:20,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 4057 transitions. [2023-11-19 04:48:20,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-19 04:48:20,790 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:20,790 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:48:20,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:48:20,791 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:48:20,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:20,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1566230038, now seen corresponding path program 1 times [2023-11-19 04:48:20,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:20,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597119013] [2023-11-19 04:48:20,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:20,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:21,129 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-11-19 04:48:21,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:48:21,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597119013] [2023-11-19 04:48:21,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597119013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:48:21,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:48:21,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:48:21,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295519] [2023-11-19 04:48:21,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:48:21,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:48:21,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:48:21,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:48:21,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:48:21,139 INFO L87 Difference]: Start difference. First operand 2802 states and 4057 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 04:48:23,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:48:23,761 INFO L93 Difference]: Finished difference Result 7980 states and 11499 transitions. [2023-11-19 04:48:23,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:48:23,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 128 [2023-11-19 04:48:23,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:48:23,809 INFO L225 Difference]: With dead ends: 7980 [2023-11-19 04:48:23,809 INFO L226 Difference]: Without dead ends: 5199 [2023-11-19 04:48:23,825 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 04:48:23,826 INFO L413 NwaCegarLoop]: 1808 mSDtfsCounter, 1742 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 3549 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:48:23,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 3549 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-19 04:48:23,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5199 states. [2023-11-19 04:48:24,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5199 to 5170. [2023-11-19 04:48:24,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5170 states, 2894 states have (on average 1.2574291637871458) internal successors, (3639), 2996 states have internal predecessors, (3639), 1892 states have call successors, (1892), 382 states have call predecessors, (1892), 381 states have return successors, (1895), 1855 states have call predecessors, (1895), 1889 states have call successors, (1895) [2023-11-19 04:48:24,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5170 states to 5170 states and 7426 transitions. [2023-11-19 04:48:24,246 INFO L78 Accepts]: Start accepts. Automaton has 5170 states and 7426 transitions. Word has length 128 [2023-11-19 04:48:24,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:48:24,247 INFO L495 AbstractCegarLoop]: Abstraction has 5170 states and 7426 transitions. [2023-11-19 04:48:24,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 04:48:24,248 INFO L276 IsEmpty]: Start isEmpty. Operand 5170 states and 7426 transitions. [2023-11-19 04:48:24,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-19 04:48:24,252 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:24,253 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:48:24,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:48:24,254 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:48:24,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:24,264 INFO L85 PathProgramCache]: Analyzing trace with hash -2010629485, now seen corresponding path program 1 times [2023-11-19 04:48:24,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:24,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006337699] [2023-11-19 04:48:24,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:24,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:24,549 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-11-19 04:48:24,550 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:48:24,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006337699] [2023-11-19 04:48:24,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006337699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:48:24,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:48:24,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:48:24,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106045588] [2023-11-19 04:48:24,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:48:24,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:48:24,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:48:24,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:48:24,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:48:24,554 INFO L87 Difference]: Start difference. First operand 5170 states and 7426 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-19 04:48:27,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:48:27,976 INFO L93 Difference]: Finished difference Result 15190 states and 21846 transitions. [2023-11-19 04:48:27,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:48:27,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 130 [2023-11-19 04:48:27,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:48:28,065 INFO L225 Difference]: With dead ends: 15190 [2023-11-19 04:48:28,065 INFO L226 Difference]: Without dead ends: 10041 [2023-11-19 04:48:28,096 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 04:48:28,097 INFO L413 NwaCegarLoop]: 1911 mSDtfsCounter, 2028 mSDsluCounter, 1743 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2028 SdHoareTripleChecker+Valid, 3654 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-19 04:48:28,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2028 Valid, 3654 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-19 04:48:28,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10041 states. [2023-11-19 04:48:28,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10041 to 10008. [2023-11-19 04:48:28,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10008 states, 5616 states have (on average 1.2612179487179487) internal successors, (7083), 5830 states have internal predecessors, (7083), 3642 states have call successors, (3642), 756 states have call predecessors, (3642), 747 states have return successors, (3673), 3547 states have call predecessors, (3673), 3639 states have call successors, (3673) [2023-11-19 04:48:29,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10008 states to 10008 states and 14398 transitions. [2023-11-19 04:48:29,039 INFO L78 Accepts]: Start accepts. Automaton has 10008 states and 14398 transitions. Word has length 130 [2023-11-19 04:48:29,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:48:29,040 INFO L495 AbstractCegarLoop]: Abstraction has 10008 states and 14398 transitions. [2023-11-19 04:48:29,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-19 04:48:29,041 INFO L276 IsEmpty]: Start isEmpty. Operand 10008 states and 14398 transitions. [2023-11-19 04:48:29,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-19 04:48:29,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:29,044 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:48:29,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:48:29,045 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:48:29,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:29,046 INFO L85 PathProgramCache]: Analyzing trace with hash 908457358, now seen corresponding path program 1 times [2023-11-19 04:48:29,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:29,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058334149] [2023-11-19 04:48:29,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:29,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:29,357 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-11-19 04:48:29,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:48:29,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058334149] [2023-11-19 04:48:29,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058334149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:48:29,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:48:29,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:48:29,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668452269] [2023-11-19 04:48:29,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:48:29,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:48:29,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:48:29,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:48:29,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:48:29,362 INFO L87 Difference]: Start difference. First operand 10008 states and 14398 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-19 04:48:32,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:48:32,128 INFO L93 Difference]: Finished difference Result 17327 states and 24891 transitions. [2023-11-19 04:48:32,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:48:32,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 136 [2023-11-19 04:48:32,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:48:32,190 INFO L225 Difference]: With dead ends: 17327 [2023-11-19 04:48:32,191 INFO L226 Difference]: Without dead ends: 7340 [2023-11-19 04:48:32,245 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 04:48:32,246 INFO L413 NwaCegarLoop]: 2799 mSDtfsCounter, 1296 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 4551 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:48:32,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1296 Valid, 4551 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-19 04:48:32,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7340 states. [2023-11-19 04:48:32,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7340 to 7312. [2023-11-19 04:48:32,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7312 states, 4196 states have (on average 1.2628693994280267) internal successors, (5299), 4354 states have internal predecessors, (5299), 2550 states have call successors, (2550), 568 states have call predecessors, (2550), 563 states have return successors, (2564), 2479 states have call predecessors, (2564), 2547 states have call successors, (2564) [2023-11-19 04:48:32,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7312 states to 7312 states and 10413 transitions. [2023-11-19 04:48:32,976 INFO L78 Accepts]: Start accepts. Automaton has 7312 states and 10413 transitions. Word has length 136 [2023-11-19 04:48:32,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:48:32,977 INFO L495 AbstractCegarLoop]: Abstraction has 7312 states and 10413 transitions. [2023-11-19 04:48:32,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-19 04:48:32,978 INFO L276 IsEmpty]: Start isEmpty. Operand 7312 states and 10413 transitions. [2023-11-19 04:48:32,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-19 04:48:32,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:32,981 INFO L195 NwaCegarLoop]: trace histogram [14, 10, 10, 10, 10, 10, 10, 4, 4, 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] [2023-11-19 04:48:32,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:48:32,982 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:48:32,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:32,982 INFO L85 PathProgramCache]: Analyzing trace with hash 2145803843, now seen corresponding path program 1 times [2023-11-19 04:48:32,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:32,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476519027] [2023-11-19 04:48:32,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:32,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:33,615 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2023-11-19 04:48:33,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:48:33,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476519027] [2023-11-19 04:48:33,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476519027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:48:33,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:48:33,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:48:33,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254741275] [2023-11-19 04:48:33,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:48:33,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:48:33,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:48:33,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:48:33,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:48:33,619 INFO L87 Difference]: Start difference. First operand 7312 states and 10413 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 04:48:36,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:48:36,369 INFO L93 Difference]: Finished difference Result 7318 states and 10418 transitions. [2023-11-19 04:48:36,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:48:36,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2023-11-19 04:48:36,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:48:36,416 INFO L225 Difference]: With dead ends: 7318 [2023-11-19 04:48:36,417 INFO L226 Difference]: Without dead ends: 7316 [2023-11-19 04:48:36,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:48:36,424 INFO L413 NwaCegarLoop]: 1788 mSDtfsCounter, 2034 mSDsluCounter, 3562 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2045 SdHoareTripleChecker+Valid, 5350 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:48:36,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2045 Valid, 5350 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-19 04:48:36,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7316 states. [2023-11-19 04:48:36,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7316 to 7316. [2023-11-19 04:48:36,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7316 states, 4199 states have (on average 1.2626815908549656) internal successors, (5302), 4357 states have internal predecessors, (5302), 2550 states have call successors, (2550), 569 states have call predecessors, (2550), 564 states have return successors, (2564), 2479 states have call predecessors, (2564), 2547 states have call successors, (2564) [2023-11-19 04:48:36,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7316 states to 7316 states and 10416 transitions. [2023-11-19 04:48:36,997 INFO L78 Accepts]: Start accepts. Automaton has 7316 states and 10416 transitions. Word has length 155 [2023-11-19 04:48:36,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:48:36,997 INFO L495 AbstractCegarLoop]: Abstraction has 7316 states and 10416 transitions. [2023-11-19 04:48:36,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 04:48:36,998 INFO L276 IsEmpty]: Start isEmpty. Operand 7316 states and 10416 transitions. [2023-11-19 04:48:37,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-19 04:48:37,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:37,002 INFO L195 NwaCegarLoop]: trace histogram [14, 10, 10, 10, 10, 10, 10, 4, 4, 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] [2023-11-19 04:48:37,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:48:37,002 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:48:37,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:37,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1120178661, now seen corresponding path program 1 times [2023-11-19 04:48:37,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:37,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296498558] [2023-11-19 04:48:37,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:37,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:37,500 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2023-11-19 04:48:37,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:48:37,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296498558] [2023-11-19 04:48:37,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296498558] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:48:37,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:48:37,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:48:37,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190530341] [2023-11-19 04:48:37,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:48:37,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:48:37,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:48:37,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:48:37,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:48:37,504 INFO L87 Difference]: Start difference. First operand 7316 states and 10416 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-19 04:48:40,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:48:40,487 INFO L93 Difference]: Finished difference Result 7322 states and 10421 transitions. [2023-11-19 04:48:40,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:48:40,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2023-11-19 04:48:40,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:48:40,526 INFO L225 Difference]: With dead ends: 7322 [2023-11-19 04:48:40,526 INFO L226 Difference]: Without dead ends: 7320 [2023-11-19 04:48:40,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:48:40,533 INFO L413 NwaCegarLoop]: 1791 mSDtfsCounter, 2029 mSDsluCounter, 3562 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2039 SdHoareTripleChecker+Valid, 5353 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:48:40,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2039 Valid, 5353 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-19 04:48:40,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7320 states. [2023-11-19 04:48:41,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7320 to 7320. [2023-11-19 04:48:41,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7320 states, 4202 states have (on average 1.2624940504521656) internal successors, (5305), 4360 states have internal predecessors, (5305), 2550 states have call successors, (2550), 570 states have call predecessors, (2550), 565 states have return successors, (2564), 2479 states have call predecessors, (2564), 2547 states have call successors, (2564) [2023-11-19 04:48:41,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7320 states to 7320 states and 10419 transitions. [2023-11-19 04:48:41,178 INFO L78 Accepts]: Start accepts. Automaton has 7320 states and 10419 transitions. Word has length 160 [2023-11-19 04:48:41,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:48:41,180 INFO L495 AbstractCegarLoop]: Abstraction has 7320 states and 10419 transitions. [2023-11-19 04:48:41,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-19 04:48:41,180 INFO L276 IsEmpty]: Start isEmpty. Operand 7320 states and 10419 transitions. [2023-11-19 04:48:41,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-19 04:48:41,183 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:41,183 INFO L195 NwaCegarLoop]: trace histogram [14, 10, 10, 10, 10, 10, 10, 4, 4, 3, 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] [2023-11-19 04:48:41,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 04:48:41,184 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:48:41,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:41,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1235457213, now seen corresponding path program 1 times [2023-11-19 04:48:41,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:41,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431639517] [2023-11-19 04:48:41,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:41,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:41,603 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2023-11-19 04:48:41,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:48:41,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431639517] [2023-11-19 04:48:41,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431639517] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:48:41,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:48:41,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:48:41,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070334482] [2023-11-19 04:48:41,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:48:41,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:48:41,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:48:41,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:48:41,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:48:41,607 INFO L87 Difference]: Start difference. First operand 7320 states and 10419 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)