./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769611f4-f247-4be7-85b9-08263fe03d2c/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769611f4-f247-4be7-85b9-08263fe03d2c/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769611f4-f247-4be7-85b9-08263fe03d2c/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769611f4-f247-4be7-85b9-08263fe03d2c/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769611f4-f247-4be7-85b9-08263fe03d2c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769611f4-f247-4be7-85b9-08263fe03d2c/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e373372610053a8b3f90a6fe69a2e2f77f1b445737e9545423fdaf4f64c3f09c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:51:20,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:51:20,752 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769611f4-f247-4be7-85b9-08263fe03d2c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:51:20,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:51:20,759 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:51:20,787 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:51:20,788 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:51:20,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:51:20,789 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:51:20,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:51:20,790 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:51:20,791 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:51:20,791 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:51:20,792 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:51:20,792 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:51:20,793 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:51:20,794 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:51:20,794 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:51:20,795 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:51:20,795 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:51:20,796 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:51:20,797 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:51:20,798 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:51:20,798 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:51:20,799 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:51:20,799 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:51:20,800 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:51:20,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:51:20,801 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:51:20,805 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:51:20,806 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:51:20,807 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:51:20,807 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:51:20,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:51:20,808 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:51:20,809 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:51:20,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:51:20,814 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:51:20,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:51:20,815 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:51:20,815 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:51:20,816 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:51:20,816 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_769611f4-f247-4be7-85b9-08263fe03d2c/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769611f4-f247-4be7-85b9-08263fe03d2c/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e373372610053a8b3f90a6fe69a2e2f77f1b445737e9545423fdaf4f64c3f09c [2023-11-19 04:51:21,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:51:21,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:51:21,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:51:21,169 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:51:21,170 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:51:21,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769611f4-f247-4be7-85b9-08263fe03d2c/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2023-11-19 04:51:24,388 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:51:25,190 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:51:25,192 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769611f4-f247-4be7-85b9-08263fe03d2c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2023-11-19 04:51:25,250 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769611f4-f247-4be7-85b9-08263fe03d2c/bin/utaipan-verify-t7M7D8N6sZ/data/38eca30e0/d36f053279a6431681d9f73489b3c3f5/FLAG8abe0c030 [2023-11-19 04:51:25,268 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769611f4-f247-4be7-85b9-08263fe03d2c/bin/utaipan-verify-t7M7D8N6sZ/data/38eca30e0/d36f053279a6431681d9f73489b3c3f5 [2023-11-19 04:51:25,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:51:25,280 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:51:25,285 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:51:25,285 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:51:25,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:51:25,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:51:25" (1/1) ... [2023-11-19 04:51:25,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@721276a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:25, skipping insertion in model container [2023-11-19 04:51:25,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:51:25" (1/1) ... [2023-11-19 04:51:25,498 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:51:28,640 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_769611f4-f247-4be7-85b9-08263fe03d2c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330704,330717] [2023-11-19 04:51:28,646 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_769611f4-f247-4be7-85b9-08263fe03d2c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330873,330886] [2023-11-19 04:51:28,647 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_769611f4-f247-4be7-85b9-08263fe03d2c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331040,331053] [2023-11-19 04:51:28,648 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_769611f4-f247-4be7-85b9-08263fe03d2c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331208,331221] [2023-11-19 04:51:28,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:51:28,793 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:51:28,966 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"); [5240] [2023-11-19 04:51:28,968 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)); [5247] [2023-11-19 04:51:28,976 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5254] [2023-11-19 04:51:28,978 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5292-5293] [2023-11-19 04:51:28,979 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"); [5298-5300] [2023-11-19 04:51:28,990 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)); [5478-5479] [2023-11-19 04:51:28,993 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)); [5512-5513] [2023-11-19 04:51:28,996 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (103), "i" (12UL)); [5549-5550] [2023-11-19 04:51:28,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (115), "i" (12UL)); [5586-5587] [2023-11-19 04:51:29,260 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_769611f4-f247-4be7-85b9-08263fe03d2c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330704,330717] [2023-11-19 04:51:29,270 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_769611f4-f247-4be7-85b9-08263fe03d2c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330873,330886] [2023-11-19 04:51:29,270 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_769611f4-f247-4be7-85b9-08263fe03d2c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331040,331053] [2023-11-19 04:51:29,271 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_769611f4-f247-4be7-85b9-08263fe03d2c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331208,331221] [2023-11-19 04:51:29,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:51:29,469 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:51:29,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:29 WrapperNode [2023-11-19 04:51:29,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:51:29,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:51:29,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:51:29,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:51:29,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:29" (1/1) ... [2023-11-19 04:51:29,598 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:29" (1/1) ... [2023-11-19 04:51:29,873 INFO L138 Inliner]: procedures = 423, calls = 1900, calls flagged for inlining = 204, calls inlined = 187, statements flattened = 5630 [2023-11-19 04:51:29,879 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:51:29,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:51:29,880 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:51:29,880 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:51:29,890 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:29" (1/1) ... [2023-11-19 04:51:29,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:29" (1/1) ... [2023-11-19 04:51:29,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:29" (1/1) ... [2023-11-19 04:51:29,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:29" (1/1) ... [2023-11-19 04:51:30,105 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:29" (1/1) ... [2023-11-19 04:51:30,149 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:29" (1/1) ... [2023-11-19 04:51:30,191 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:29" (1/1) ... [2023-11-19 04:51:30,218 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:29" (1/1) ... [2023-11-19 04:51:30,276 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:51:30,278 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:51:30,278 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:51:30,278 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:51:30,279 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:29" (1/1) ... [2023-11-19 04:51:30,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:51:30,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769611f4-f247-4be7-85b9-08263fe03d2c/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:51:30,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769611f4-f247-4be7-85b9-08263fe03d2c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:51:30,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769611f4-f247-4be7-85b9-08263fe03d2c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:51:30,413 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 04:51:30,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 04:51:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:51:30,414 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:51:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:51:30,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:51:30,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:51:30,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:51:30,415 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 04:51:30,415 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 04:51:30,416 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-19 04:51:30,416 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-19 04:51:30,416 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-19 04:51:30,416 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-19 04:51:30,416 INFO L130 BoogieDeclarations]: Found specification of procedure desc_to_dma [2023-11-19 04:51:30,417 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_to_dma [2023-11-19 04:51:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-19 04:51:30,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-19 04:51:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-11-19 04:51:30,417 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-11-19 04:51:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 04:51:30,418 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 04:51:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 04:51:30,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 04:51:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure mii_write [2023-11-19 04:51:30,419 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_write [2023-11-19 04:51:30,419 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 04:51:30,419 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 04:51:30,419 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-19 04:51:30,419 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-19 04:51:30,419 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 04:51:30,420 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 04:51:30,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:51:30,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:51:30,420 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 04:51:30,420 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 04:51:30,420 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast [2023-11-19 04:51:30,421 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast [2023-11-19 04:51:30,421 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 04:51:30,421 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 04:51:30,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:51:30,421 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-19 04:51:30,422 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-19 04:51:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 04:51:30,422 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 04:51:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 04:51:30,422 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 04:51:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:51:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 04:51:30,423 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 04:51:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 04:51:30,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 04:51:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:51:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 04:51:30,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 04:51:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:51:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 04:51:30,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 04:51:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:51:30,425 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:51:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 04:51:30,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 04:51:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 04:51:30,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 04:51:30,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 04:51:30,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 04:51:30,426 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 04:51:30,426 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 04:51:30,426 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 04:51:30,427 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 04:51:30,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:51:30,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:51:30,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:51:30,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 04:51:30,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 04:51:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 04:51:30,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 04:51:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure rio_close [2023-11-19 04:51:30,428 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_close [2023-11-19 04:51:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:51:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2023-11-19 04:51:30,429 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2023-11-19 04:51:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 04:51:30,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 04:51:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 04:51:30,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 04:51:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:51:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-19 04:51:30,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-19 04:51:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:51:30,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:51:30,431 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:51:30,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:51:30,431 INFO L130 BoogieDeclarations]: Found specification of procedure mii_read [2023-11-19 04:51:30,431 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_read [2023-11-19 04:51:30,431 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-19 04:51:30,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-19 04:51:30,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 04:51:30,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 04:51:30,432 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-19 04:51:30,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-19 04:51:30,432 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:51:30,433 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:51:30,433 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 04:51:30,433 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 04:51:30,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 04:51:30,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 04:51:30,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:51:30,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:51:30,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:51:30,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:51:30,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:51:30,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:51:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:51:30,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:51:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-19 04:51:30,435 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-19 04:51:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats [2023-11-19 04:51:30,436 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats [2023-11-19 04:51:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 04:51:30,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 04:51:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 04:51:30,436 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 04:51:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-19 04:51:30,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-19 04:51:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 04:51:30,437 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 04:51:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2023-11-19 04:51:30,437 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2023-11-19 04:51:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-19 04:51:30,438 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-19 04:51:30,438 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 04:51:30,438 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 04:51:30,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:51:30,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netdev_private [2023-11-19 04:51:30,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netdev_private [2023-11-19 04:51:30,439 INFO L130 BoogieDeclarations]: Found specification of procedure rio_open [2023-11-19 04:51:30,439 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_open [2023-11-19 04:51:30,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:51:30,439 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-19 04:51:30,439 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-19 04:51:30,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netdev_private [2023-11-19 04:51:30,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netdev_private [2023-11-19 04:51:30,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:51:30,440 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:51:30,441 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:51:30,441 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 04:51:30,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 04:51:30,441 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 04:51:30,442 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 04:51:30,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 04:51:30,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 04:51:30,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netdev_private [2023-11-19 04:51:30,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netdev_private [2023-11-19 04:51:30,443 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 04:51:30,443 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 04:51:30,443 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 04:51:30,443 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 04:51:30,443 INFO L130 BoogieDeclarations]: Found specification of procedure rio_free_tx [2023-11-19 04:51:30,443 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_free_tx [2023-11-19 04:51:30,444 INFO L130 BoogieDeclarations]: Found specification of procedure rio_tx_timeout [2023-11-19 04:51:30,444 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_tx_timeout [2023-11-19 04:51:30,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netdev_private [2023-11-19 04:51:30,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netdev_private [2023-11-19 04:51:30,444 INFO L130 BoogieDeclarations]: Found specification of procedure rio_remove1 [2023-11-19 04:51:30,444 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_remove1 [2023-11-19 04:51:30,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:51:30,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:51:30,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:51:30,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rio_driver_exit_14_2 [2023-11-19 04:51:30,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rio_driver_exit_14_2 [2023-11-19 04:51:30,445 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2023-11-19 04:51:30,446 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2023-11-19 04:51:30,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 04:51:30,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 04:51:30,446 INFO L130 BoogieDeclarations]: Found specification of procedure mii_set_media [2023-11-19 04:51:30,446 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_set_media [2023-11-19 04:51:30,446 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-19 04:51:30,447 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-19 04:51:30,447 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 04:51:30,447 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 04:51:30,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:51:30,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 04:51:30,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 04:51:31,220 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:51:31,227 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:51:31,312 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:51:35,639 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 04:51:35,774 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:51:39,303 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:51:39,304 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-19 04:51:39,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:51:39 BoogieIcfgContainer [2023-11-19 04:51:39,317 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:51:39,319 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:51:39,319 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:51:39,322 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:51:39,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:51:25" (1/3) ... [2023-11-19 04:51:39,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545b294a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:51:39, skipping insertion in model container [2023-11-19 04:51:39,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:29" (2/3) ... [2023-11-19 04:51:39,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545b294a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:51:39, skipping insertion in model container [2023-11-19 04:51:39,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:51:39" (3/3) ... [2023-11-19 04:51:39,326 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2023-11-19 04:51:39,346 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:51:39,346 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 04:51:39,440 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:51:39,447 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;@4984523c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:51:39,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 04:51:39,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 1486 states, 875 states have (on average 1.2765714285714285) internal successors, (1117), 906 states have internal predecessors, (1117), 530 states have call successors, (530), 84 states have call predecessors, (530), 83 states have return successors, (524), 521 states have call predecessors, (524), 524 states have call successors, (524) [2023-11-19 04:51:39,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-19 04:51:39,482 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:39,483 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:51:39,483 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:51:39,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:39,489 INFO L85 PathProgramCache]: Analyzing trace with hash -828333293, now seen corresponding path program 1 times [2023-11-19 04:51:39,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:51:39,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288691585] [2023-11-19 04:51:39,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:39,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:51:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:40,500 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-19 04:51:40,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:51:40,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288691585] [2023-11-19 04:51:40,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288691585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:40,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:51:40,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:51:40,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002734001] [2023-11-19 04:51:40,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:40,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:51:40,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:51:40,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:51:40,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:51:40,547 INFO L87 Difference]: Start difference. First operand has 1486 states, 875 states have (on average 1.2765714285714285) internal successors, (1117), 906 states have internal predecessors, (1117), 530 states have call successors, (530), 84 states have call predecessors, (530), 83 states have return successors, (524), 521 states have call predecessors, (524), 524 states have call successors, (524) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 04:51:43,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:51:47,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:51:49,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:51:50,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:51:50,694 INFO L93 Difference]: Finished difference Result 4315 states and 6358 transitions. [2023-11-19 04:51:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:51:50,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2023-11-19 04:51:50,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:51:50,750 INFO L225 Difference]: With dead ends: 4315 [2023-11-19 04:51:50,750 INFO L226 Difference]: Without dead ends: 2838 [2023-11-19 04:51:50,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:51:50,771 INFO L413 NwaCegarLoop]: 1846 mSDtfsCounter, 2022 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2022 SdHoareTripleChecker+Valid, 3648 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-11-19 04:51:50,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2022 Valid, 3648 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 612 Invalid, 3 Unknown, 0 Unchecked, 9.8s Time] [2023-11-19 04:51:50,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2023-11-19 04:51:51,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 2834. [2023-11-19 04:51:51,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2834 states, 1673 states have (on average 1.269575612671847) internal successors, (2124), 1728 states have internal predecessors, (2124), 996 states have call successors, (996), 163 states have call predecessors, (996), 162 states have return successors, (992), 986 states have call predecessors, (992), 992 states have call successors, (992) [2023-11-19 04:51:51,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 4112 transitions. [2023-11-19 04:51:51,082 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 4112 transitions. Word has length 111 [2023-11-19 04:51:51,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:51:51,083 INFO L495 AbstractCegarLoop]: Abstraction has 2834 states and 4112 transitions. [2023-11-19 04:51:51,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 04:51:51,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 4112 transitions. [2023-11-19 04:51:51,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-19 04:51:51,091 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:51,091 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:51:51,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:51:51,092 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:51:51,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:51,093 INFO L85 PathProgramCache]: Analyzing trace with hash 883165284, now seen corresponding path program 1 times [2023-11-19 04:51:51,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:51:51,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572126133] [2023-11-19 04:51:51,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:51,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:51:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:51,662 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-19 04:51:51,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:51:51,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572126133] [2023-11-19 04:51:51,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572126133] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:51,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:51:51,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:51:51,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845378710] [2023-11-19 04:51:51,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:51,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:51:51,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:51:51,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:51:51,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:51:51,676 INFO L87 Difference]: Start difference. First operand 2834 states and 4112 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 04:51:55,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:51:58,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:52:00,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:52:01,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:01,082 INFO L93 Difference]: Finished difference Result 8336 states and 12094 transitions. [2023-11-19 04:52:01,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:52:01,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2023-11-19 04:52:01,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:01,144 INFO L225 Difference]: With dead ends: 8336 [2023-11-19 04:52:01,144 INFO L226 Difference]: Without dead ends: 5521 [2023-11-19 04:52:01,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:52:01,166 INFO L413 NwaCegarLoop]: 1869 mSDtfsCounter, 2038 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2038 SdHoareTripleChecker+Valid, 3634 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:01,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2038 Valid, 3634 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 604 Invalid, 3 Unknown, 0 Unchecked, 8.9s Time] [2023-11-19 04:52:01,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5521 states. [2023-11-19 04:52:01,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5521 to 5491. [2023-11-19 04:52:01,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 3252 states have (on average 1.270910209102091) internal successors, (4133), 3364 states have internal predecessors, (4133), 1915 states have call successors, (1915), 324 states have call predecessors, (1915), 321 states have return successors, (1921), 1888 states have call predecessors, (1921), 1911 states have call successors, (1921) [2023-11-19 04:52:01,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 7969 transitions. [2023-11-19 04:52:01,780 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 7969 transitions. Word has length 115 [2023-11-19 04:52:01,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:01,781 INFO L495 AbstractCegarLoop]: Abstraction has 5491 states and 7969 transitions. [2023-11-19 04:52:01,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 04:52:01,782 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 7969 transitions. [2023-11-19 04:52:01,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-19 04:52:01,789 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:01,789 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 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] [2023-11-19 04:52:01,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:52:01,790 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:52:01,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:01,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1942706508, now seen corresponding path program 1 times [2023-11-19 04:52:01,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:01,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717750253] [2023-11-19 04:52:01,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:01,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:02,513 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2023-11-19 04:52:02,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:02,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717750253] [2023-11-19 04:52:02,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717750253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:02,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:02,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:52:02,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644212469] [2023-11-19 04:52:02,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:02,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:52:02,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:02,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:52:02,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:52:02,516 INFO L87 Difference]: Start difference. First operand 5491 states and 7969 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15)