./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-mutex_drivers-net-ethernet-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d195cdce-50d9-49f2-9e70-97f57e66707e/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d195cdce-50d9-49f2-9e70-97f57e66707e/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d195cdce-50d9-49f2-9e70-97f57e66707e/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d195cdce-50d9-49f2-9e70-97f57e66707e/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d195cdce-50d9-49f2-9e70-97f57e66707e/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d195cdce-50d9-49f2-9e70-97f57e66707e/bin/utaipan-verify-QoSU8krkJ5 --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 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:56:18,532 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:56:18,661 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d195cdce-50d9-49f2-9e70-97f57e66707e/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 18:56:18,668 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:56:18,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 18:56:18,708 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:56:18,709 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 18:56:18,709 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 18:56:18,711 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:56:18,718 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 18:56:18,719 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 18:56:18,719 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 18:56:18,720 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 18:56:18,722 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 18:56:18,722 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 18:56:18,723 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 18:56:18,723 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 18:56:18,724 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 18:56:18,724 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 18:56:18,725 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 18:56:18,725 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 18:56:18,726 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 18:56:18,727 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:56:18,727 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:56:18,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:56:18,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:56:18,729 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:56:18,729 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:56:18,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:56:18,730 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:56:18,731 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:56:18,732 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:56:18,732 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 18:56:18,732 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 18:56:18,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:56:18,733 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:56:18,734 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:56:18,734 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:56:18,734 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 18:56:18,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:56:18,735 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 18:56:18,735 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:56:18,735 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 18:56:18,736 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:56:18,736 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_d195cdce-50d9-49f2-9e70-97f57e66707e/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d195cdce-50d9-49f2-9e70-97f57e66707e/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 [2023-11-21 18:56:19,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:56:19,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:56:19,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:56:19,045 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:56:19,046 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:56:19,047 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d195cdce-50d9-49f2-9e70-97f57e66707e/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-21 18:56:22,257 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:56:22,988 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:56:22,988 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d195cdce-50d9-49f2-9e70-97f57e66707e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-21 18:56:23,039 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d195cdce-50d9-49f2-9e70-97f57e66707e/bin/utaipan-verify-QoSU8krkJ5/data/d9bee250b/bd94715481f74c1b9800c02add54a877/FLAG4332d5192 [2023-11-21 18:56:23,057 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d195cdce-50d9-49f2-9e70-97f57e66707e/bin/utaipan-verify-QoSU8krkJ5/data/d9bee250b/bd94715481f74c1b9800c02add54a877 [2023-11-21 18:56:23,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:56:23,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:56:23,066 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:56:23,066 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:56:23,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:56:23,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:56:23" (1/1) ... [2023-11-21 18:56:23,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46e3a97b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:23, skipping insertion in model container [2023-11-21 18:56:23,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:56:23" (1/1) ... [2023-11-21 18:56:23,256 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:56:25,750 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_d195cdce-50d9-49f2-9e70-97f57e66707e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2023-11-21 18:56:25,754 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_d195cdce-50d9-49f2-9e70-97f57e66707e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2023-11-21 18:56:25,755 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_d195cdce-50d9-49f2-9e70-97f57e66707e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2023-11-21 18:56:25,756 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_d195cdce-50d9-49f2-9e70-97f57e66707e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2023-11-21 18:56:25,780 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:56:25,876 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:56:26,009 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"); [5267] [2023-11-21 18:56:26,017 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)); [5274] [2023-11-21 18:56:26,017 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5281] [2023-11-21 18:56:26,020 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/d4e00c1/linux-kernel-locking-mutex/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5325-5326] [2023-11-21 18:56:26,020 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"); [5331-5333] [2023-11-21 18:56:26,031 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5529-5530] [2023-11-21 18:56:26,035 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5563-5564] [2023-11-21 18:56:26,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7915] [2023-11-21 18:56:26,305 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_d195cdce-50d9-49f2-9e70-97f57e66707e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2023-11-21 18:56:26,306 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_d195cdce-50d9-49f2-9e70-97f57e66707e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2023-11-21 18:56:26,307 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_d195cdce-50d9-49f2-9e70-97f57e66707e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2023-11-21 18:56:26,307 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_d195cdce-50d9-49f2-9e70-97f57e66707e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2023-11-21 18:56:26,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:56:26,541 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:56:26,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:26 WrapperNode [2023-11-21 18:56:26,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:56:26,543 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:56:26,543 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:56:26,544 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:56:26,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:26" (1/1) ... [2023-11-21 18:56:26,676 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:26" (1/1) ... [2023-11-21 18:56:26,894 INFO L138 Inliner]: procedures = 357, calls = 1584, calls flagged for inlining = 198, calls inlined = 187, statements flattened = 4774 [2023-11-21 18:56:26,895 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:56:26,896 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:56:26,896 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:56:26,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:56:26,905 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:26" (1/1) ... [2023-11-21 18:56:26,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:26" (1/1) ... [2023-11-21 18:56:26,924 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:26" (1/1) ... [2023-11-21 18:56:26,925 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:26" (1/1) ... [2023-11-21 18:56:27,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:26" (1/1) ... [2023-11-21 18:56:27,085 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:26" (1/1) ... [2023-11-21 18:56:27,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:26" (1/1) ... [2023-11-21 18:56:27,142 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:26" (1/1) ... [2023-11-21 18:56:27,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:56:27,180 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:56:27,180 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:56:27,180 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:56:27,181 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:26" (1/1) ... [2023-11-21 18:56:27,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:56:27,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d195cdce-50d9-49f2-9e70-97f57e66707e/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 18:56:27,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d195cdce-50d9-49f2-9e70-97f57e66707e/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 18:56:27,249 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2023-11-21 18:56:27,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2023-11-21 18:56:27,250 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-21 18:56:27,250 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-21 18:56:27,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 18:56:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 18:56:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 18:56:27,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 18:56:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-21 18:56:27,253 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-21 18:56:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2023-11-21 18:56:27,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2023-11-21 18:56:27,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d195cdce-50d9-49f2-9e70-97f57e66707e/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 18:56:27,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 18:56:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 18:56:27,257 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-21 18:56:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-21 18:56:27,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 18:56:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 18:56:27,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2023-11-21 18:56:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2023-11-21 18:56:27,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-21 18:56:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-21 18:56:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-21 18:56:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-21 18:56:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2023-11-21 18:56:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2023-11-21 18:56:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-21 18:56:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-21 18:56:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-21 18:56:27,259 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-21 18:56:27,259 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-21 18:56:27,259 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-21 18:56:27,259 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2023-11-21 18:56:27,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2023-11-21 18:56:27,259 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-21 18:56:27,259 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-21 18:56:27,259 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-21 18:56:27,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-21 18:56:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-21 18:56:27,260 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-21 18:56:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-21 18:56:27,260 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-21 18:56:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 18:56:27,260 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 18:56:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2023-11-21 18:56:27,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2023-11-21 18:56:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2023-11-21 18:56:27,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2023-11-21 18:56:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2023-11-21 18:56:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2023-11-21 18:56:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:56:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-21 18:56:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-21 18:56:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2023-11-21 18:56:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2023-11-21 18:56:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 18:56:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-21 18:56:27,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-21 18:56:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-21 18:56:27,262 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-21 18:56:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-21 18:56:27,262 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-21 18:56:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-21 18:56:27,262 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-21 18:56:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-21 18:56:27,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-21 18:56:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-21 18:56:27,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-21 18:56:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2023-11-21 18:56:27,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2023-11-21 18:56:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-21 18:56:27,263 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-21 18:56:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2023-11-21 18:56:27,263 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2023-11-21 18:56:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:56:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 18:56:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 18:56:27,264 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 18:56:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-21 18:56:27,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-21 18:56:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2023-11-21 18:56:27,264 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2023-11-21 18:56:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-21 18:56:27,264 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-21 18:56:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2023-11-21 18:56:27,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2023-11-21 18:56:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-21 18:56:27,265 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-21 18:56:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-21 18:56:27,265 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-21 18:56:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-21 18:56:27,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-21 18:56:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-21 18:56:27,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-21 18:56:27,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 18:56:27,266 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-21 18:56:27,266 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-21 18:56:27,266 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-21 18:56:27,266 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-21 18:56:27,266 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2023-11-21 18:56:27,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2023-11-21 18:56:27,266 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2023-11-21 18:56:27,266 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2023-11-21 18:56:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2023-11-21 18:56:27,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2023-11-21 18:56:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:56:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-21 18:56:27,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-21 18:56:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-21 18:56:27,267 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-21 18:56:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:56:27,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-21 18:56:27,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-21 18:56:27,268 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-21 18:56:27,268 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-21 18:56:27,268 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-21 18:56:27,268 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-21 18:56:27,268 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-21 18:56:27,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-21 18:56:27,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 18:56:27,268 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 18:56:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-21 18:56:27,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-21 18:56:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-21 18:56:27,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-21 18:56:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-21 18:56:27,269 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-21 18:56:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-21 18:56:27,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-21 18:56:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-21 18:56:27,269 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-21 18:56:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-21 18:56:27,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-21 18:56:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-21 18:56:27,274 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-21 18:56:27,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:56:27,274 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-21 18:56:27,275 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-21 18:56:27,275 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-21 18:56:27,275 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-21 18:56:27,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 18:56:27,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 18:56:27,275 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2023-11-21 18:56:27,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2023-11-21 18:56:27,275 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2023-11-21 18:56:27,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2023-11-21 18:56:27,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2023-11-21 18:56:27,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2023-11-21 18:56:27,276 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2023-11-21 18:56:27,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2023-11-21 18:56:27,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 18:56:27,276 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2023-11-21 18:56:27,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2023-11-21 18:56:27,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-21 18:56:27,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-21 18:56:27,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-21 18:56:27,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-21 18:56:27,277 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2023-11-21 18:56:27,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2023-11-21 18:56:27,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:56:27,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-21 18:56:27,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-21 18:56:27,277 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-21 18:56:27,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-21 18:56:27,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 18:56:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-21 18:56:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-21 18:56:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-21 18:56:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-21 18:56:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 18:56:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 18:56:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2023-11-21 18:56:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2023-11-21 18:56:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-21 18:56:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-21 18:56:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-21 18:56:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-21 18:56:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-21 18:56:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-21 18:56:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2023-11-21 18:56:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2023-11-21 18:56:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-21 18:56:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-21 18:56:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-21 18:56:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-21 18:56:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-21 18:56:27,280 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-21 18:56:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-21 18:56:27,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-21 18:56:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2023-11-21 18:56:27,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2023-11-21 18:56:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2023-11-21 18:56:27,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2023-11-21 18:56:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-21 18:56:27,280 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-21 18:56:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-21 18:56:27,281 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-21 18:56:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-21 18:56:27,281 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-21 18:56:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-11-21 18:56:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:56:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2023-11-21 18:56:27,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2023-11-21 18:56:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-21 18:56:27,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-21 18:56:27,282 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2023-11-21 18:56:27,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2023-11-21 18:56:27,282 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-21 18:56:27,282 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-21 18:56:27,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:56:27,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:56:28,151 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:56:28,156 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:56:29,287 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 18:56:33,702 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-21 18:56:33,819 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:56:36,783 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:56:36,783 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 18:56:36,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:56:36 BoogieIcfgContainer [2023-11-21 18:56:36,786 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:56:36,789 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 18:56:36,789 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 18:56:36,792 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 18:56:36,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 06:56:23" (1/3) ... [2023-11-21 18:56:36,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db32483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:56:36, skipping insertion in model container [2023-11-21 18:56:36,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:56:26" (2/3) ... [2023-11-21 18:56:36,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db32483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:56:36, skipping insertion in model container [2023-11-21 18:56:36,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:56:36" (3/3) ... [2023-11-21 18:56:36,796 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-21 18:56:36,816 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 18:56:36,816 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-21 18:56:36,919 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 18:56:36,928 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;@53213517, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 18:56:36,928 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-21 18:56:36,941 INFO L276 IsEmpty]: Start isEmpty. Operand has 1337 states, 781 states have (on average 1.2714468629961588) internal successors, (993), 811 states have internal predecessors, (993), 459 states have call successors, (459), 97 states have call predecessors, (459), 96 states have return successors, (453), 450 states have call predecessors, (453), 453 states have call successors, (453) [2023-11-21 18:56:36,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-21 18:56:36,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:56:36,962 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 18:56:36,963 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 18:56:36,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:56:36,968 INFO L85 PathProgramCache]: Analyzing trace with hash -41798670, now seen corresponding path program 1 times [2023-11-21 18:56:36,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:56:36,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338638306] [2023-11-21 18:56:36,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:56:36,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:56:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:56:37,906 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-21 18:56:37,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:56:37,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338638306] [2023-11-21 18:56:37,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338638306] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:56:37,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:56:37,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 18:56:37,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527528991] [2023-11-21 18:56:37,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:56:37,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:56:37,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:56:37,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:56:37,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:56:37,970 INFO L87 Difference]: Start difference. First operand has 1337 states, 781 states have (on average 1.2714468629961588) internal successors, (993), 811 states have internal predecessors, (993), 459 states have call successors, (459), 97 states have call predecessors, (459), 96 states have return successors, (453), 450 states have call predecessors, (453), 453 states have call successors, (453) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-21 18:56:42,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:56:42,153 INFO L93 Difference]: Finished difference Result 3899 states and 5617 transitions. [2023-11-21 18:56:42,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:56:42,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2023-11-21 18:56:42,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:56:42,220 INFO L225 Difference]: With dead ends: 3899 [2023-11-21 18:56:42,220 INFO L226 Difference]: Without dead ends: 2569 [2023-11-21 18:56:42,239 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 [2023-11-21 18:56:42,244 INFO L413 NwaCegarLoop]: 1623 mSDtfsCounter, 1795 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-21 18:56:42,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1795 Valid, 3202 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-21 18:56:42,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2023-11-21 18:56:42,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 2565. [2023-11-21 18:56:42,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2565 states, 1504 states have (on average 1.2639627659574468) internal successors, (1901), 1561 states have internal predecessors, (1901), 870 states have call successors, (870), 189 states have call predecessors, (870), 188 states have return successors, (866), 860 states have call predecessors, (866), 866 states have call successors, (866) [2023-11-21 18:56:42,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2565 states to 2565 states and 3637 transitions. [2023-11-21 18:56:42,567 INFO L78 Accepts]: Start accepts. Automaton has 2565 states and 3637 transitions. Word has length 101 [2023-11-21 18:56:42,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:56:42,568 INFO L495 AbstractCegarLoop]: Abstraction has 2565 states and 3637 transitions. [2023-11-21 18:56:42,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-21 18:56:42,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2565 states and 3637 transitions. [2023-11-21 18:56:42,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-21 18:56:42,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:56:42,581 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 18:56:42,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 18:56:42,581 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 18:56:42,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:56:42,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1990465507, now seen corresponding path program 1 times [2023-11-21 18:56:42,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:56:42,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928169987] [2023-11-21 18:56:42,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:56:42,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:56:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:56:42,989 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-21 18:56:42,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:56:42,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928169987] [2023-11-21 18:56:42,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928169987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:56:42,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:56:42,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 18:56:42,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764994305] [2023-11-21 18:56:42,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:56:42,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:56:42,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:56:42,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:56:42,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:56:42,994 INFO L87 Difference]: Start difference. First operand 2565 states and 3637 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-21 18:56:46,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:56:46,339 INFO L93 Difference]: Finished difference Result 7471 states and 10563 transitions. [2023-11-21 18:56:46,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:56:46,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2023-11-21 18:56:46,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:56:46,392 INFO L225 Difference]: With dead ends: 7471 [2023-11-21 18:56:46,392 INFO L226 Difference]: Without dead ends: 4923 [2023-11-21 18:56:46,411 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 [2023-11-21 18:56:46,412 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 1697 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-21 18:56:46,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 3152 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-21 18:56:46,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4923 states. [2023-11-21 18:56:46,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4923 to 4902. [2023-11-21 18:56:46,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4902 states, 2867 states have (on average 1.2556679455877224) internal successors, (3600), 2977 states have internal predecessors, (3600), 1661 states have call successors, (1661), 374 states have call predecessors, (1661), 371 states have return successors, (1659), 1636 states have call predecessors, (1659), 1657 states have call successors, (1659) [2023-11-21 18:56:46,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4902 states to 4902 states and 6920 transitions. [2023-11-21 18:56:46,857 INFO L78 Accepts]: Start accepts. Automaton has 4902 states and 6920 transitions. Word has length 101 [2023-11-21 18:56:46,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:56:46,858 INFO L495 AbstractCegarLoop]: Abstraction has 4902 states and 6920 transitions. [2023-11-21 18:56:46,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-21 18:56:46,859 INFO L276 IsEmpty]: Start isEmpty. Operand 4902 states and 6920 transitions. [2023-11-21 18:56:46,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-21 18:56:46,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:56:46,863 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 18:56:46,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 18:56:46,864 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 18:56:46,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:56:46,865 INFO L85 PathProgramCache]: Analyzing trace with hash 2118335335, now seen corresponding path program 1 times [2023-11-21 18:56:46,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:56:46,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985673592] [2023-11-21 18:56:46,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:56:46,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:56:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:56:47,143 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-21 18:56:47,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:56:47,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985673592] [2023-11-21 18:56:47,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985673592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:56:47,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:56:47,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 18:56:47,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526376827] [2023-11-21 18:56:47,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:56:47,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:56:47,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:56:47,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:56:47,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:56:47,147 INFO L87 Difference]: Start difference. First operand 4902 states and 6920 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-21 18:56:51,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:56:51,329 INFO L93 Difference]: Finished difference Result 9585 states and 13523 transitions. [2023-11-21 18:56:51,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:56:51,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2023-11-21 18:56:51,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:56:51,373 INFO L225 Difference]: With dead ends: 9585 [2023-11-21 18:56:51,374 INFO L226 Difference]: Without dead ends: 4700 [2023-11-21 18:56:51,401 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 [2023-11-21 18:56:51,406 INFO L413 NwaCegarLoop]: 2024 mSDtfsCounter, 1315 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 3577 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-21 18:56:51,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 3577 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-21 18:56:51,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4700 states. [2023-11-21 18:56:51,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4700 to 4681. [2023-11-21 18:56:51,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4681 states, 2773 states have (on average 1.2517129462675802) internal successors, (3471), 2874 states have internal predecessors, (3471), 1548 states have call successors, (1548), 361 states have call predecessors, (1548), 357 states have return successors, (1545), 1522 states have call predecessors, (1545), 1544 states have call successors, (1545) [2023-11-21 18:56:51,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4681 states to 4681 states and 6564 transitions. [2023-11-21 18:56:51,726 INFO L78 Accepts]: Start accepts. Automaton has 4681 states and 6564 transitions. Word has length 112 [2023-11-21 18:56:51,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:56:51,729 INFO L495 AbstractCegarLoop]: Abstraction has 4681 states and 6564 transitions. [2023-11-21 18:56:51,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-21 18:56:51,729 INFO L276 IsEmpty]: Start isEmpty. Operand 4681 states and 6564 transitions. [2023-11-21 18:56:51,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-21 18:56:51,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:56:51,739 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 18:56:51,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 18:56:51,739 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 18:56:51,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:56:51,742 INFO L85 PathProgramCache]: Analyzing trace with hash 201678104, now seen corresponding path program 1 times [2023-11-21 18:56:51,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:56:51,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298979980] [2023-11-21 18:56:51,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:56:51,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:56:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:56:52,649 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-11-21 18:56:52,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:56:52,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298979980] [2023-11-21 18:56:52,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298979980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:56:52,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:56:52,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 18:56:52,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391932327] [2023-11-21 18:56:52,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:56:52,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 18:56:52,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:56:52,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 18:56:52,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 18:56:52,656 INFO L87 Difference]: Start difference. First operand 4681 states and 6564 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 18:56:56,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:56:56,112 INFO L93 Difference]: Finished difference Result 4687 states and 6569 transitions. [2023-11-21 18:56:56,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 18:56:56,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2023-11-21 18:56:56,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:56:56,147 INFO L225 Difference]: With dead ends: 4687 [2023-11-21 18:56:56,148 INFO L226 Difference]: Without dead ends: 4685 [2023-11-21 18:56:56,151 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 [2023-11-21 18:56:56,152 INFO L413 NwaCegarLoop]: 1592 mSDtfsCounter, 1831 mSDsluCounter, 3178 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1834 SdHoareTripleChecker+Valid, 4770 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-21 18:56:56,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1834 Valid, 4770 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-21 18:56:56,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4685 states. [2023-11-21 18:56:56,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4685 to 4685. [2023-11-21 18:56:56,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4685 states, 2776 states have (on average 1.2514409221902016) internal successors, (3474), 2877 states have internal predecessors, (3474), 1548 states have call successors, (1548), 362 states have call predecessors, (1548), 358 states have return successors, (1545), 1522 states have call predecessors, (1545), 1544 states have call successors, (1545) [2023-11-21 18:56:56,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4685 states to 4685 states and 6567 transitions. [2023-11-21 18:56:56,472 INFO L78 Accepts]: Start accepts. Automaton has 4685 states and 6567 transitions. Word has length 143 [2023-11-21 18:56:56,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:56:56,473 INFO L495 AbstractCegarLoop]: Abstraction has 4685 states and 6567 transitions. [2023-11-21 18:56:56,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-21 18:56:56,473 INFO L276 IsEmpty]: Start isEmpty. Operand 4685 states and 6567 transitions. [2023-11-21 18:56:56,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-21 18:56:56,478 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:56:56,478 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 18:56:56,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 18:56:56,478 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 18:56:56,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:56:56,479 INFO L85 PathProgramCache]: Analyzing trace with hash 2019135461, now seen corresponding path program 1 times [2023-11-21 18:56:56,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:56:56,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795802430] [2023-11-21 18:56:56,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:56:56,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:56:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:56:57,142 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-11-21 18:56:57,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:56:57,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795802430] [2023-11-21 18:56:57,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795802430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:56:57,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:56:57,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 18:56:57,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875536682] [2023-11-21 18:56:57,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:56:57,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 18:56:57,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:56:57,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 18:56:57,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 18:56:57,146 INFO L87 Difference]: Start difference. First operand 4685 states and 6567 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-21 18:57:01,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:57:01,028 INFO L93 Difference]: Finished difference Result 4691 states and 6572 transitions. [2023-11-21 18:57:01,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 18:57:01,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 148 [2023-11-21 18:57:01,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:57:01,069 INFO L225 Difference]: With dead ends: 4691 [2023-11-21 18:57:01,070 INFO L226 Difference]: Without dead ends: 4689 [2023-11-21 18:57:01,073 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 [2023-11-21 18:57:01,076 INFO L413 NwaCegarLoop]: 1595 mSDtfsCounter, 1826 mSDsluCounter, 3178 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1828 SdHoareTripleChecker+Valid, 4773 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-21 18:57:01,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1828 Valid, 4773 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-21 18:57:01,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4689 states. [2023-11-21 18:57:01,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4689 to 4689. [2023-11-21 18:57:01,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4689 states, 2779 states have (on average 1.2511694854264124) internal successors, (3477), 2880 states have internal predecessors, (3477), 1548 states have call successors, (1548), 363 states have call predecessors, (1548), 359 states have return successors, (1545), 1522 states have call predecessors, (1545), 1544 states have call successors, (1545) [2023-11-21 18:57:01,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4689 states to 4689 states and 6570 transitions. [2023-11-21 18:57:01,451 INFO L78 Accepts]: Start accepts. Automaton has 4689 states and 6570 transitions. Word has length 148 [2023-11-21 18:57:01,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:57:01,452 INFO L495 AbstractCegarLoop]: Abstraction has 4689 states and 6570 transitions. [2023-11-21 18:57:01,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-21 18:57:01,453 INFO L276 IsEmpty]: Start isEmpty. Operand 4689 states and 6570 transitions. [2023-11-21 18:57:01,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-21 18:57:01,459 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:01,459 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 5, 5, 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, 1, 1, 1, 1] [2023-11-21 18:57:01,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 18:57:01,460 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 18:57:01,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:01,461 INFO L85 PathProgramCache]: Analyzing trace with hash 83150280, now seen corresponding path program 1 times [2023-11-21 18:57:01,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:57:01,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088006386] [2023-11-21 18:57:01,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:01,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:57:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:57:02,191 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2023-11-21 18:57:02,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:57:02,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088006386] [2023-11-21 18:57:02,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088006386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:57:02,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:57:02,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 18:57:02,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144867027] [2023-11-21 18:57:02,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:57:02,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 18:57:02,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:57:02,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 18:57:02,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 18:57:02,195 INFO L87 Difference]: Start difference. First operand 4689 states and 6570 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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) [2023-11-21 18:57:05,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:57:05,875 INFO L93 Difference]: Finished difference Result 4695 states and 6575 transitions. [2023-11-21 18:57:05,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 18:57:05,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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) Word has length 157 [2023-11-21 18:57:05,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:57:05,913 INFO L225 Difference]: With dead ends: 4695 [2023-11-21 18:57:05,913 INFO L226 Difference]: Without dead ends: 4691 [2023-11-21 18:57:05,916 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 [2023-11-21 18:57:05,917 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 1803 mSDsluCounter, 3189 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1804 SdHoareTripleChecker+Valid, 4783 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-21 18:57:05,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1804 Valid, 4783 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-21 18:57:05,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4691 states.