./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.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_eb4d2d05-549c-49cb-bc82-d95a95d4990a/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4d2d05-549c-49cb-bc82-d95a95d4990a/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_eb4d2d05-549c-49cb-bc82-d95a95d4990a/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4d2d05-549c-49cb-bc82-d95a95d4990a/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4d2d05-549c-49cb-bc82-d95a95d4990a/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_eb4d2d05-549c-49cb-bc82-d95a95d4990a/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 3bc6b3a88723e5b624538f8d0e562bbcbb838c2bd2dcd71ae870bf42dcd3068b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:09:50,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:09:50,205 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4d2d05-549c-49cb-bc82-d95a95d4990a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:09:50,211 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:09:50,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:09:50,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:09:50,248 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:09:50,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:09:50,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:09:50,255 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:09:50,255 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:09:50,256 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:09:50,257 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:09:50,258 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:09:50,259 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:09:50,259 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:09:50,260 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:09:50,260 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:09:50,261 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:09:50,261 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:09:50,262 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:09:50,262 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:09:50,263 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:09:50,264 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:09:50,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:09:50,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:09:50,265 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:09:50,265 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:09:50,266 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:09:50,266 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:09:50,267 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:09:50,268 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:09:50,268 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:09:50,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:09:50,269 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:09:50,269 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:09:50,269 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:09:50,269 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:09:50,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:09:50,270 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:09:50,270 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:09:50,271 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:09:50,271 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_eb4d2d05-549c-49cb-bc82-d95a95d4990a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4d2d05-549c-49cb-bc82-d95a95d4990a/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc6b3a88723e5b624538f8d0e562bbcbb838c2bd2dcd71ae870bf42dcd3068b [2023-11-19 05:09:50,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:09:50,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:09:50,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:09:50,589 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:09:50,590 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:09:50,591 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4d2d05-549c-49cb-bc82-d95a95d4990a/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2023-11-19 05:09:53,668 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:09:54,306 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:09:54,307 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4d2d05-549c-49cb-bc82-d95a95d4990a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2023-11-19 05:09:54,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4d2d05-549c-49cb-bc82-d95a95d4990a/bin/utaipan-verify-t7M7D8N6sZ/data/f1753665e/00a09be188764a21bb92b9acc2b3dbfa/FLAG2733c6f43 [2023-11-19 05:09:54,376 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4d2d05-549c-49cb-bc82-d95a95d4990a/bin/utaipan-verify-t7M7D8N6sZ/data/f1753665e/00a09be188764a21bb92b9acc2b3dbfa [2023-11-19 05:09:54,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:09:54,383 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:09:54,386 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:54,387 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:09:54,392 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:09:54,392 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:54" (1/1) ... [2023-11-19 05:09:54,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6befced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:54, skipping insertion in model container [2023-11-19 05:09:54,394 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:54" (1/1) ... [2023-11-19 05:09:54,643 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:09:57,608 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_eb4d2d05-549c-49cb-bc82-d95a95d4990a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339479,339492] [2023-11-19 05:09:57,611 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_eb4d2d05-549c-49cb-bc82-d95a95d4990a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339648,339661] [2023-11-19 05:09:57,612 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_eb4d2d05-549c-49cb-bc82-d95a95d4990a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339815,339828] [2023-11-19 05:09:57,612 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_eb4d2d05-549c-49cb-bc82-d95a95d4990a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339983,339996] [2023-11-19 05:09:57,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:09:57,674 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:09:57,774 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"); [5308] [2023-11-19 05:09:57,776 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)); [5315] [2023-11-19 05:09:57,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5322] [2023-11-19 05:09:57,779 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/7cdfae59d3ac602223400f61d8829e28/klever-core-work-dir/520b8de/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5377-5378] [2023-11-19 05:09:57,780 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"); [5383-5385] [2023-11-19 05:09:57,783 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [5502] [2023-11-19 05:09:57,783 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5510] [2023-11-19 05:09:57,784 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5517] [2023-11-19 05:09:57,789 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)); [5645-5646] [2023-11-19 05:09:57,792 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)); [5679-5680] [2023-11-19 05:09:57,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (79), "i" (12UL)); [5720-5721] [2023-11-19 05:09:57,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (91), "i" (12UL)); [5749-5750] [2023-11-19 05:09:57,795 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)); [5786-5787] [2023-11-19 05:09:57,797 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)); [5823-5824] [2023-11-19 05:09:57,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6769] [2023-11-19 05:09:57,846 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7540] [2023-11-19 05:09:57,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7550] [2023-11-19 05:09:57,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7565] [2023-11-19 05:09:57,939 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8351] [2023-11-19 05:09:57,940 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8384] [2023-11-19 05:09:57,941 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8407] [2023-11-19 05:09:57,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8648] [2023-11-19 05:09:57,951 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8678] [2023-11-19 05:09:57,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8691] [2023-11-19 05:09:58,049 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_eb4d2d05-549c-49cb-bc82-d95a95d4990a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339479,339492] [2023-11-19 05:09:58,050 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_eb4d2d05-549c-49cb-bc82-d95a95d4990a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339648,339661] [2023-11-19 05:09:58,051 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_eb4d2d05-549c-49cb-bc82-d95a95d4990a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339815,339828] [2023-11-19 05:09:58,051 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_eb4d2d05-549c-49cb-bc82-d95a95d4990a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339983,339996] [2023-11-19 05:09:58,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:09:58,288 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:09:58,288 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:09:58,296 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:09:58,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:58 WrapperNode [2023-11-19 05:09:58,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:58,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:09:58,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:09:58,298 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:09:58,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:58" (1/1) ... [2023-11-19 05:09:58,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:58" (1/1) ... [2023-11-19 05:09:58,746 INFO L138 Inliner]: procedures = 433, calls = 2151, calls flagged for inlining = 207, calls inlined = 190, statements flattened = 5938 [2023-11-19 05:09:58,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:09:58,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:09:58,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:09:58,748 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:09:58,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:58" (1/1) ... [2023-11-19 05:09:58,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:58" (1/1) ... [2023-11-19 05:09:58,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:58" (1/1) ... [2023-11-19 05:09:58,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:58" (1/1) ... [2023-11-19 05:09:59,013 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:58" (1/1) ... [2023-11-19 05:09:59,056 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:58" (1/1) ... [2023-11-19 05:09:59,086 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:58" (1/1) ... [2023-11-19 05:09:59,113 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:58" (1/1) ... [2023-11-19 05:09:59,157 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:09:59,158 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:09:59,159 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:09:59,159 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:09:59,160 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:58" (1/1) ... [2023-11-19 05:09:59,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:09:59,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4d2d05-549c-49cb-bc82-d95a95d4990a/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:09:59,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4d2d05-549c-49cb-bc82-d95a95d4990a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:09:59,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4d2d05-549c-49cb-bc82-d95a95d4990a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:09:59,230 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-19 05:09:59,230 INFO L130 BoogieDeclarations]: Found specification of procedure BB_GET_BIT2 [2023-11-19 05:09:59,230 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_GET_BIT2 [2023-11-19 05:09:59,230 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2023-11-19 05:09:59,231 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2023-11-19 05:09:59,231 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 05:09:59,232 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 05:09:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:09:59,232 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:09:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_open [2023-11-19 05:09:59,232 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_open [2023-11-19 05:09:59,233 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_poll_stop [2023-11-19 05:09:59,233 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_poll_stop [2023-11-19 05:09:59,233 INFO L130 BoogieDeclarations]: Found specification of procedure is_quattro_p [2023-11-19 05:09:59,233 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quattro_p [2023-11-19 05:09:59,233 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 05:09:59,234 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 05:09:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_close [2023-11-19 05:09:59,234 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_close [2023-11-19 05:09:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:09:59,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:09:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 05:09:59,235 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 05:09:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 05:09:59,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 05:09:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_set_multicast [2023-11-19 05:09:59,236 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_set_multicast [2023-11-19 05:09:59,236 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 05:09:59,236 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 05:09:59,236 INFO L130 BoogieDeclarations]: Found specification of procedure BB_PUT_BIT [2023-11-19 05:09:59,237 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_PUT_BIT [2023-11-19 05:09:59,237 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-11-19 05:09:59,238 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-11-19 05:09:59,238 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_begin_auto_negotiation [2023-11-19 05:09:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_begin_auto_negotiation [2023-11-19 05:09:59,239 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_get_counters [2023-11-19 05:09:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_get_counters [2023-11-19 05:09:59,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_happy_lock_of_happy_meal [2023-11-19 05:09:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_happy_lock_of_happy_meal [2023-11-19 05:09:59,240 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 05:09:59,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 05:09:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 05:09:59,240 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 05:09:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 05:09:59,241 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-19 05:09:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-19 05:09:59,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2023-11-19 05:09:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2023-11-19 05:09:59,241 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 05:09:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 05:09:59,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 05:09:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 05:09:59,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:09:59,242 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-19 05:09:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-19 05:09:59,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2023-11-19 05:09:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2023-11-19 05:09:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 05:09:59,244 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 05:09:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:09:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 05:09:59,244 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 05:09:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:09:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 05:09:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 05:09:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:09:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 05:09:59,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 05:09:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 05:09:59,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 05:09:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 05:09:59,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 05:09:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 05:09:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 05:09:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure set_happy_link_modes [2023-11-19 05:09:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure set_happy_link_modes [2023-11-19 05:09:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_reset [2023-11-19 05:09:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_reset [2023-11-19 05:09:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 05:09:59,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 05:09:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:09:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tx_timeout [2023-11-19 05:09:59,249 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tx_timeout [2023-11-19 05:09:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-19 05:09:59,249 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-19 05:09:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:09:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_read [2023-11-19 05:09:59,250 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_read [2023-11-19 05:09:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 05:09:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 05:09:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 05:09:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 05:09:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:09:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:09:59,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:09:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 05:09:59,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 05:09:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 05:09:59,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 05:09:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-11-19 05:09:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-11-19 05:09:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 05:09:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 05:09:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 05:09:59,255 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 05:09:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 05:09:59,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 05:09:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 05:09:59,256 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 05:09:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure is_lucent_phy [2023-11-19 05:09:59,256 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lucent_phy [2023-11-19 05:09:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:09:59,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:09:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure hme_read_desc32 [2023-11-19 05:09:59,257 INFO L138 BoogieDeclarations]: Found implementation of procedure hme_read_desc32 [2023-11-19 05:09:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 05:09:59,258 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 05:09:59,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:09:59,261 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_clean_rings [2023-11-19 05:09:59,261 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_clean_rings [2023-11-19 05:09:59,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:09:59,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:09:59,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:09:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-19 05:09:59,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-19 05:09:59,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 05:09:59,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 05:09:59,269 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-11-19 05:09:59,270 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-11-19 05:09:59,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 05:09:59,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 05:09:59,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:09:59,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:09:59,271 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 05:09:59,271 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 05:09:59,272 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-19 05:09:59,272 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-19 05:09:59,272 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-11-19 05:09:59,272 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-11-19 05:09:59,272 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-19 05:09:59,272 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-19 05:09:59,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:09:59,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:09:59,273 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-19 05:09:59,273 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-19 05:09:59,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:09:59,273 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:09:59,273 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:09:59,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 05:09:59,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 05:09:59,274 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_stop [2023-11-19 05:09:59,274 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_stop [2023-11-19 05:09:59,274 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 05:09:59,274 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 05:09:59,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 05:09:59,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 05:09:59,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-19 05:09:59,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-19 05:09:59,275 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_pci_remove [2023-11-19 05:09:59,276 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_pci_remove [2023-11-19 05:09:59,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_63 [2023-11-19 05:09:59,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_63 [2023-11-19 05:09:59,276 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_init [2023-11-19 05:09:59,276 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_init [2023-11-19 05:09:59,276 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-19 05:09:59,277 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-19 05:09:59,277 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 05:09:59,277 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 05:09:59,277 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_write [2023-11-19 05:09:59,277 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_write [2023-11-19 05:09:59,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:09:59,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:09:59,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:09:59,278 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-19 05:09:59,278 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-19 05:09:59,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_64 [2023-11-19 05:09:59,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_64 [2023-11-19 05:09:59,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 05:09:59,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 05:09:59,279 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-19 05:09:59,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-19 05:09:59,279 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2023-11-19 05:09:59,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2023-11-19 05:09:59,280 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 05:09:59,280 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 05:09:59,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:09:59,280 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2023-11-19 05:09:59,280 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2023-11-19 05:09:59,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 05:09:59,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 05:09:59,281 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2023-11-19 05:09:59,282 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2023-11-19 05:09:59,282 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_transceiver_check [2023-11-19 05:09:59,283 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_transceiver_check [2023-11-19 05:10:00,168 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:10:00,246 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:10:01,013 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:10:07,218 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:10:11,124 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:10:11,124 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:10:11,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:10:11 BoogieIcfgContainer [2023-11-19 05:10:11,138 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:10:11,142 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:10:11,142 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:10:11,146 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:10:11,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:09:54" (1/3) ... [2023-11-19 05:10:11,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ecf099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:10:11, skipping insertion in model container [2023-11-19 05:10:11,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:58" (2/3) ... [2023-11-19 05:10:11,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ecf099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:10:11, skipping insertion in model container [2023-11-19 05:10:11,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:10:11" (3/3) ... [2023-11-19 05:10:11,150 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2023-11-19 05:10:11,171 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:10:11,171 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 05:10:11,261 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:10:11,268 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;@3cd5272c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:10:11,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 05:10:11,279 INFO L276 IsEmpty]: Start isEmpty. Operand has 1651 states, 956 states have (on average 1.288702928870293) internal successors, (1232), 1001 states have internal predecessors, (1232), 604 states have call successors, (604), 88 states have call predecessors, (604), 87 states have return successors, (600), 589 states have call predecessors, (600), 600 states have call successors, (600) [2023-11-19 05:10:11,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 05:10:11,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:10:11,289 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:10:11,290 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 05:10:11,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:10:11,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1635651714, now seen corresponding path program 1 times [2023-11-19 05:10:11,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:10:11,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637068318] [2023-11-19 05:10:11,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:10:11,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:10:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:10:11,971 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 05:10:11,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:10:11,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637068318] [2023-11-19 05:10:11,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637068318] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:10:11,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:10:11,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:10:11,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781422002] [2023-11-19 05:10:11,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:10:11,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:10:11,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:10:12,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:10:12,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:10:12,030 INFO L87 Difference]: Start difference. First operand has 1651 states, 956 states have (on average 1.288702928870293) internal successors, (1232), 1001 states have internal predecessors, (1232), 604 states have call successors, (604), 88 states have call predecessors, (604), 87 states have return successors, (600), 589 states have call predecessors, (600), 600 states have call successors, (600) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 05:10:13,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:10:14,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:10:14,739 INFO L93 Difference]: Finished difference Result 3279 states and 4900 transitions. [2023-11-19 05:10:14,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:10:14,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2023-11-19 05:10:14,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:10:14,787 INFO L225 Difference]: With dead ends: 3279 [2023-11-19 05:10:14,787 INFO L226 Difference]: Without dead ends: 1640 [2023-11-19 05:10:14,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:10:14,826 INFO L413 NwaCegarLoop]: 2135 mSDtfsCounter, 313 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 3899 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-19 05:10:14,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 3899 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-19 05:10:14,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2023-11-19 05:10:15,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1640. [2023-11-19 05:10:15,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1640 states, 951 states have (on average 1.2818086225026288) internal successors, (1219), 995 states have internal predecessors, (1219), 600 states have call successors, (600), 87 states have call predecessors, (600), 86 states have return successors, (597), 586 states have call predecessors, (597), 597 states have call successors, (597) [2023-11-19 05:10:15,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1640 states to 1640 states and 2416 transitions. [2023-11-19 05:10:15,077 INFO L78 Accepts]: Start accepts. Automaton has 1640 states and 2416 transitions. Word has length 26 [2023-11-19 05:10:15,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:10:15,078 INFO L495 AbstractCegarLoop]: Abstraction has 1640 states and 2416 transitions. [2023-11-19 05:10:15,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 05:10:15,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1640 states and 2416 transitions. [2023-11-19 05:10:15,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-19 05:10:15,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:10:15,082 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:10:15,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:10:15,083 INFO L420 AbstractCegarLoop]: === Iteration 2 === 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 05:10:15,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:10:15,084 INFO L85 PathProgramCache]: Analyzing trace with hash -835007138, now seen corresponding path program 1 times [2023-11-19 05:10:15,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:10:15,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356737642] [2023-11-19 05:10:15,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:10:15,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:10:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:10:15,732 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 05:10:15,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:10:15,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356737642] [2023-11-19 05:10:15,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356737642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:10:15,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:10:15,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:10:15,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71788081] [2023-11-19 05:10:15,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:10:15,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:10:15,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:10:15,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:10:15,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:10:15,742 INFO L87 Difference]: Start difference. First operand 1640 states and 2416 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 05:10:19,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:10:21,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:10:21,000 INFO L93 Difference]: Finished difference Result 1646 states and 2421 transitions. [2023-11-19 05:10:21,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:10:21,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 37 [2023-11-19 05:10:21,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:10:21,018 INFO L225 Difference]: With dead ends: 1646 [2023-11-19 05:10:21,018 INFO L226 Difference]: Without dead ends: 1644 [2023-11-19 05:10:21,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:10:21,021 INFO L413 NwaCegarLoop]: 2119 mSDtfsCounter, 2397 mSDsluCounter, 4223 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 6342 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:10:21,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2409 Valid, 6342 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 902 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2023-11-19 05:10:21,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2023-11-19 05:10:21,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1644. [2023-11-19 05:10:21,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1644 states, 954 states have (on average 1.280922431865828) internal successors, (1222), 998 states have internal predecessors, (1222), 600 states have call successors, (600), 88 states have call predecessors, (600), 87 states have return successors, (597), 586 states have call predecessors, (597), 597 states have call successors, (597) [2023-11-19 05:10:21,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2419 transitions. [2023-11-19 05:10:21,151 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2419 transitions. Word has length 37 [2023-11-19 05:10:21,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:10:21,151 INFO L495 AbstractCegarLoop]: Abstraction has 1644 states and 2419 transitions. [2023-11-19 05:10:21,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 05:10:21,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2419 transitions. [2023-11-19 05:10:21,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-19 05:10:21,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:10:21,154 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-19 05:10:21,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:10:21,155 INFO L420 AbstractCegarLoop]: === Iteration 3 === 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 05:10:21,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:10:21,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1057477402, now seen corresponding path program 1 times [2023-11-19 05:10:21,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:10:21,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716823643] [2023-11-19 05:10:21,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:10:21,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:10:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:10:21,703 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 05:10:21,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:10:21,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716823643] [2023-11-19 05:10:21,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716823643] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:10:21,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:10:21,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:10:21,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358529501] [2023-11-19 05:10:21,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:10:21,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:10:21,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:10:21,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:10:21,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:10:21,706 INFO L87 Difference]: Start difference. First operand 1644 states and 2419 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 05:10:24,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:10:26,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:10:26,636 INFO L93 Difference]: Finished difference Result 1650 states and 2424 transitions. [2023-11-19 05:10:26,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:10:26,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-11-19 05:10:26,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:10:26,652 INFO L225 Difference]: With dead ends: 1650 [2023-11-19 05:10:26,652 INFO L226 Difference]: Without dead ends: 1648 [2023-11-19 05:10:26,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:10:26,655 INFO L413 NwaCegarLoop]: 2122 mSDtfsCounter, 2392 mSDsluCounter, 4223 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 6345 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:10:26,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2403 Valid, 6345 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-19 05:10:26,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2023-11-19 05:10:26,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1648. [2023-11-19 05:10:26,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 957 states have (on average 1.2800417972831766) internal successors, (1225), 1001 states have internal predecessors, (1225), 600 states have call successors, (600), 89 states have call predecessors, (600), 88 states have return successors, (597), 586 states have call predecessors, (597), 597 states have call successors, (597) [2023-11-19 05:10:26,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2422 transitions. [2023-11-19 05:10:26,791 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2422 transitions. Word has length 42 [2023-11-19 05:10:26,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:10:26,792 INFO L495 AbstractCegarLoop]: Abstraction has 1648 states and 2422 transitions. [2023-11-19 05:10:26,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 05:10:26,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2422 transitions. [2023-11-19 05:10:26,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 05:10:26,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:10:26,795 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:10:26,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:10:26,795 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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 05:10:26,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:10:26,796 INFO L85 PathProgramCache]: Analyzing trace with hash 15620638, now seen corresponding path program 1 times [2023-11-19 05:10:26,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:10:26,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871502487] [2023-11-19 05:10:26,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:10:26,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:10:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:10:27,215 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 05:10:27,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:10:27,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871502487] [2023-11-19 05:10:27,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871502487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:10:27,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:10:27,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:10:27,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689978062] [2023-11-19 05:10:27,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:10:27,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:10:27,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:10:27,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:10:27,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:10:27,218 INFO L87 Difference]: Start difference. First operand 1648 states and 2422 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 05:10:30,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:10:31,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:10:33,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:10:33,396 INFO L93 Difference]: Finished difference Result 1654 states and 2427 transitions. [2023-11-19 05:10:33,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:10:33,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 47 [2023-11-19 05:10:33,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:10:33,412 INFO L225 Difference]: With dead ends: 1654 [2023-11-19 05:10:33,413 INFO L226 Difference]: Without dead ends: 1652 [2023-11-19 05:10:33,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:10:33,415 INFO L413 NwaCegarLoop]: 2122 mSDtfsCounter, 2392 mSDsluCounter, 4223 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 6345 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:10:33,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 6345 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-11-19 05:10:33,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1652 states. [2023-11-19 05:10:33,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1652 to 1652. [2023-11-19 05:10:33,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 960 states have (on average 1.2791666666666666) internal successors, (1228), 1004 states have internal predecessors, (1228), 600 states have call successors, (600), 90 states have call predecessors, (600), 89 states have return successors, (597), 586 states have call predecessors, (597), 597 states have call successors, (597) [2023-11-19 05:10:33,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 2425 transitions. [2023-11-19 05:10:33,724 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 2425 transitions. Word has length 47 [2023-11-19 05:10:33,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:10:33,726 INFO L495 AbstractCegarLoop]: Abstraction has 1652 states and 2425 transitions. [2023-11-19 05:10:33,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 05:10:33,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 2425 transitions. [2023-11-19 05:10:33,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 05:10:33,733 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:10:33,733 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:10:33,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:10:33,734 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 05:10:33,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:10:33,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1723077748, now seen corresponding path program 1 times [2023-11-19 05:10:33,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:10:33,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877770044] [2023-11-19 05:10:33,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:10:33,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:10:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:10:34,215 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-19 05:10:34,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:10:34,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877770044] [2023-11-19 05:10:34,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877770044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:10:34,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:10:34,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:10:34,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944671892] [2023-11-19 05:10:34,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:10:34,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:10:34,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:10:34,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:10:34,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:10:34,219 INFO L87 Difference]: Start difference. First operand 1652 states and 2425 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 05:10:36,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:10:37,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:10:39,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:10:39,494 INFO L93 Difference]: Finished difference Result 1658 states and 2430 transitions. [2023-11-19 05:10:39,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:10:39,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 59 [2023-11-19 05:10:39,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:10:39,512 INFO L225 Difference]: With dead ends: 1658 [2023-11-19 05:10:39,512 INFO L226 Difference]: Without dead ends: 1656 [2023-11-19 05:10:39,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:10:39,514 INFO L413 NwaCegarLoop]: 2122 mSDtfsCounter, 2387 mSDsluCounter, 4223 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2396 SdHoareTripleChecker+Valid, 6345 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:10:39,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2396 Valid, 6345 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-19 05:10:39,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2023-11-19 05:10:39,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1656. [2023-11-19 05:10:39,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1656 states, 963 states have (on average 1.2782969885773625) internal successors, (1231), 1007 states have internal predecessors, (1231), 600 states have call successors, (600), 91 states have call predecessors, (600), 90 states have return successors, (597), 586 states have call predecessors, (597), 597 states have call successors, (597) [2023-11-19 05:10:39,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 2428 transitions. [2023-11-19 05:10:39,704 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 2428 transitions. Word has length 59 [2023-11-19 05:10:39,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:10:39,705 INFO L495 AbstractCegarLoop]: Abstraction has 1656 states and 2428 transitions. [2023-11-19 05:10:39,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 05:10:39,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 2428 transitions. [2023-11-19 05:10:39,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 05:10:39,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:10:39,707 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:10:39,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:10:39,708 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 05:10:39,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:10:39,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1885690146, now seen corresponding path program 1 times [2023-11-19 05:10:39,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:10:39,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860548040] [2023-11-19 05:10:39,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:10:39,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:10:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:10:40,154 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-19 05:10:40,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:10:40,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860548040] [2023-11-19 05:10:40,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860548040] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:10:40,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:10:40,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:10:40,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070783150] [2023-11-19 05:10:40,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:10:40,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:10:40,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:10:40,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:10:40,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:10:40,162 INFO L87 Difference]: Start difference. First operand 1656 states and 2428 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)