./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4849054-11ff-4d9c-8da0-e3e57e127bab/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4849054-11ff-4d9c-8da0-e3e57e127bab/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4849054-11ff-4d9c-8da0-e3e57e127bab/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4849054-11ff-4d9c-8da0-e3e57e127bab/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4849054-11ff-4d9c-8da0-e3e57e127bab/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4849054-11ff-4d9c-8da0-e3e57e127bab/bin/utaipan-verify-mE87zJ7Ire --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 435b3fa8073a80dcd9b8b69819909b6031007c35574ec244127e6237bed3be57 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:31:24,359 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:31:24,489 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4849054-11ff-4d9c-8da0-e3e57e127bab/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:31:24,500 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:31:24,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:31:24,545 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:31:24,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:31:24,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:31:24,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:31:24,550 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:31:24,550 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:31:24,550 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:31:24,551 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:31:24,552 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:31:24,552 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:31:24,553 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:31:24,553 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:31:24,554 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:31:24,555 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:31:24,555 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:31:24,556 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:31:24,559 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:31:24,560 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:31:24,561 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:31:24,561 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:31:24,562 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:31:24,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:31:24,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:31:24,563 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:31:24,564 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:31:24,565 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:31:24,566 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:31:24,566 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:31:24,566 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:31:24,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:31:24,567 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:31:24,567 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:31:24,567 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:31:24,568 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:31:24,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:31:24,568 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:31:24,569 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:31:24,569 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:31:24,569 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:31:24,570 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_a4849054-11ff-4d9c-8da0-e3e57e127bab/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4849054-11ff-4d9c-8da0-e3e57e127bab/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 435b3fa8073a80dcd9b8b69819909b6031007c35574ec244127e6237bed3be57 [2023-11-23 20:31:24,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:31:24,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:31:24,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:31:24,952 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:31:24,953 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:31:24,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4849054-11ff-4d9c-8da0-e3e57e127bab/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2023-11-23 20:31:28,168 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:31:29,079 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:31:29,080 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4849054-11ff-4d9c-8da0-e3e57e127bab/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2023-11-23 20:31:29,148 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4849054-11ff-4d9c-8da0-e3e57e127bab/bin/utaipan-verify-mE87zJ7Ire/data/d066094c9/c63e878252e44e0b92867297a877fe14/FLAGfab8a17b6 [2023-11-23 20:31:29,164 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4849054-11ff-4d9c-8da0-e3e57e127bab/bin/utaipan-verify-mE87zJ7Ire/data/d066094c9/c63e878252e44e0b92867297a877fe14 [2023-11-23 20:31:29,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:31:29,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:31:29,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:31:29,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:31:29,183 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:31:29,184 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:31:29" (1/1) ... [2023-11-23 20:31:29,185 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7004d7eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:29, skipping insertion in model container [2023-11-23 20:31:29,185 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:31:29" (1/1) ... [2023-11-23 20:31:29,447 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:31:34,466 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_a4849054-11ff-4d9c-8da0-e3e57e127bab/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491234,491247] [2023-11-23 20:31:34,471 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_a4849054-11ff-4d9c-8da0-e3e57e127bab/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491403,491416] [2023-11-23 20:31:34,472 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_a4849054-11ff-4d9c-8da0-e3e57e127bab/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491570,491583] [2023-11-23 20:31:34,473 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_a4849054-11ff-4d9c-8da0-e3e57e127bab/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491738,491751] [2023-11-23 20:31:34,523 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:31:34,633 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:31:34,804 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)); [5801] [2023-11-23 20:31:34,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5808] [2023-11-23 20:31:34,813 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)); [5910-5911] [2023-11-23 20:31:34,815 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)); [5944-5945] [2023-11-23 20:31:34,817 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)); [5982-5983] [2023-11-23 20:31:34,818 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)); [6019-6020] [2023-11-23 20:31:34,825 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6277] [2023-11-23 20:31:34,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6304] [2023-11-23 20:31:34,866 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7257] [2023-11-23 20:31:34,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7375] [2023-11-23 20:31:34,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7494] [2023-11-23 20:31:34,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8510] [2023-11-23 20:31:34,987 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"); [9066] [2023-11-23 20:31:34,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [9073] [2023-11-23 20:31:34,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [9119-9120] [2023-11-23 20:31:34,989 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"); [9125-9127] [2023-11-23 20:31:34,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/netdevice.h"), "i" (502), "i" (12UL)); [9388-9389] [2023-11-23 20:31:34,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [9395] [2023-11-23 20:31:35,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [9658] [2023-11-23 20:31:35,043 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [10251] [2023-11-23 20:31:35,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [10511] [2023-11-23 20:31:35,203 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [14812] [2023-11-23 20:31:35,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [15437] [2023-11-23 20:31:35,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [15914] [2023-11-23 20:31:35,315 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_a4849054-11ff-4d9c-8da0-e3e57e127bab/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491234,491247] [2023-11-23 20:31:35,316 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_a4849054-11ff-4d9c-8da0-e3e57e127bab/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491403,491416] [2023-11-23 20:31:35,316 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_a4849054-11ff-4d9c-8da0-e3e57e127bab/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491570,491583] [2023-11-23 20:31:35,317 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_a4849054-11ff-4d9c-8da0-e3e57e127bab/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491738,491751] [2023-11-23 20:31:35,333 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:31:35,660 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:31:35,668 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:31:35,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:35 WrapperNode [2023-11-23 20:31:35,669 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:31:35,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:31:35,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:31:35,671 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:31:35,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:35" (1/1) ... [2023-11-23 20:31:35,901 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:35" (1/1) ... [2023-11-23 20:31:36,440 INFO L138 Inliner]: procedures = 567, calls = 5462, calls flagged for inlining = 290, calls inlined = 262, statements flattened = 14154 [2023-11-23 20:31:36,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:31:36,442 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:31:36,442 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:31:36,442 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:31:36,463 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:35" (1/1) ... [2023-11-23 20:31:36,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:35" (1/1) ... [2023-11-23 20:31:36,570 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:35" (1/1) ... [2023-11-23 20:31:36,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:35" (1/1) ... [2023-11-23 20:31:37,013 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:35" (1/1) ... [2023-11-23 20:31:37,079 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:35" (1/1) ... [2023-11-23 20:31:37,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:35" (1/1) ... [2023-11-23 20:31:37,152 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:35" (1/1) ... [2023-11-23 20:31:37,221 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:31:37,222 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:31:37,222 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:31:37,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:31:37,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:35" (1/1) ... [2023-11-23 20:31:37,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:31:37,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4849054-11ff-4d9c-8da0-e3e57e127bab/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:31:37,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4849054-11ff-4d9c-8da0-e3e57e127bab/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:31:37,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4849054-11ff-4d9c-8da0-e3e57e127bab/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:31:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_up [2023-11-23 20:31:37,298 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_up [2023-11-23 20:31:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_media_task [2023-11-23 20:31:37,299 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_media_task [2023-11-23 20:31:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 20:31:37,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 20:31:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 20:31:37,299 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 20:31:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-23 20:31:37,299 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-23 20:31:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 20:31:37,300 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 20:31:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_select_media [2023-11-23 20:31:37,300 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_select_media [2023-11-23 20:31:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit_le [2023-11-23 20:31:37,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit_le [2023-11-23 20:31:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:31:37,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:31:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 20:31:37,301 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 20:31:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 20:31:37,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 20:31:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 20:31:37,301 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 20:31:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-23 20:31:37,301 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-23 20:31:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 20:31:37,301 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 20:31:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-23 20:31:37,302 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-23 20:31:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2023-11-23 20:31:37,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2023-11-23 20:31:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-23 20:31:37,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-23 20:31:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-23 20:31:37,303 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-23 20:31:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-11-23 20:31:37,303 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-11-23 20:31:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 20:31:37,303 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 20:31:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-23 20:31:37,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-23 20:31:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 20:31:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-23 20:31:37,305 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-23 20:31:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 20:31:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 20:31:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_do_nway [2023-11-23 20:31:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_do_nway [2023-11-23 20:31:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 20:31:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 20:31:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-23 20:31:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-23 20:31:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 20:31:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 20:31:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 20:31:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 20:31:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 20:31:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 20:31:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 20:31:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 20:31:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:31:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_wolopts [2023-11-23 20:31:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_wolopts [2023-11-23 20:31:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_61 [2023-11-23 20:31:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_61 [2023-11-23 20:31:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_resume [2023-11-23 20:31:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_resume [2023-11-23 20:31:37,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-23 20:31:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-23 20:31:37,309 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_interrupt [2023-11-23 20:31:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_interrupt [2023-11-23 20:31:37,309 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 20:31:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 20:31:37,309 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___3 [2023-11-23 20:31:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___3 [2023-11-23 20:31:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___1 [2023-11-23 20:31:37,310 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___1 [2023-11-23 20:31:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_media_task [2023-11-23 20:31:37,310 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_media_task [2023-11-23 20:31:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:31:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___5 [2023-11-23 20:31:37,310 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___5 [2023-11-23 20:31:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___4 [2023-11-23 20:31:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___4 [2023-11-23 20:31:37,311 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 20:31:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 20:31:37,311 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 20:31:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 20:31:37,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:31:37,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 20:31:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 20:31:37,312 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 20:31:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 20:31:37,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:31:37,312 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-23 20:31:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-23 20:31:37,312 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 20:31:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 20:31:37,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 20:31:37,313 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 20:31:37,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-23 20:31:37,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-23 20:31:37,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 20:31:37,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 20:31:37,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-23 20:31:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-23 20:31:37,314 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_timer [2023-11-23 20:31:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_timer [2023-11-23 20:31:37,314 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-23 20:31:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-23 20:31:37,314 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 20:31:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 20:31:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure poll_tulip [2023-11-23 20:31:37,315 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_tulip [2023-11-23 20:31:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_write [2023-11-23 20:31:37,315 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_write [2023-11-23 20:31:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 20:31:37,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 20:31:37,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:31:37,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 20:31:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 20:31:37,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 20:31:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 20:31:37,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-23 20:31:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-23 20:31:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-23 20:31:37,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-23 20:31:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:31:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 20:31:37,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 20:31:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 20:31:37,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 20:31:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:31:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_start_nway [2023-11-23 20:31:37,318 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_start_nway [2023-11-23 20:31:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2023-11-23 20:31:37,318 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2023-11-23 20:31:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-23 20:31:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-23 20:31:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:31:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:31:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tulip_private [2023-11-23 20:31:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tulip_private [2023-11-23 20:31:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 20:31:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 20:31:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-23 20:31:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-23 20:31:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 20:31:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 20:31:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 20:31:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 20:31:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mii_lock_of_tulip_private [2023-11-23 20:31:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mii_lock_of_tulip_private [2023-11-23 20:31:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 20:31:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 20:31:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-23 20:31:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-23 20:31:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tulip_private [2023-11-23 20:31:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tulip_private [2023-11-23 20:31:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:31:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:31:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_close [2023-11-23 20:31:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_close [2023-11-23 20:31:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:31:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:31:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:31:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:31:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2023-11-23 20:31:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2023-11-23 20:31:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 20:31:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 20:31:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2023-11-23 20:31:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2023-11-23 20:31:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_power_state [2023-11-23 20:31:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_power_state [2023-11-23 20:31:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-23 20:31:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-23 20:31:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2023-11-23 20:31:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2023-11-23 20:31:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2023-11-23 20:31:37,325 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2023-11-23 20:31:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-23 20:31:37,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-23 20:31:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_tx_timeout [2023-11-23 20:31:37,325 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_tx_timeout [2023-11-23 20:31:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_check_duplex [2023-11-23 20:31:37,326 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_check_duplex [2023-11-23 20:31:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 20:31:37,326 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 20:31:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2023-11-23 20:31:37,326 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2023-11-23 20:31:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2023-11-23 20:31:37,326 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2023-11-23 20:31:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 20:31:37,327 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 20:31:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 20:31:37,327 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 20:31:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure comet_timer [2023-11-23 20:31:37,327 INFO L138 BoogieDeclarations]: Found implementation of procedure comet_timer [2023-11-23 20:31:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2023-11-23 20:31:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2023-11-23 20:31:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 20:31:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 20:31:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:31:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_read [2023-11-23 20:31:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_read [2023-11-23 20:31:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 20:31:37,329 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 20:31:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:31:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-23 20:31:37,329 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-23 20:31:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2023-11-23 20:31:37,329 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2023-11-23 20:31:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2023-11-23 20:31:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2023-11-23 20:31:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:31:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:31:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:31:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_down [2023-11-23 20:31:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_down [2023-11-23 20:31:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_stop_rxtx___2 [2023-11-23 20:31:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_stop_rxtx___2 [2023-11-23 20:31:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 20:31:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 20:31:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_remove_one [2023-11-23 20:31:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_remove_one [2023-11-23 20:31:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 20:31:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 20:31:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2023-11-23 20:31:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2023-11-23 20:31:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure mxic_timer [2023-11-23 20:31:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure mxic_timer [2023-11-23 20:31:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 20:31:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 20:31:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-23 20:31:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-23 20:31:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_free_ring [2023-11-23 20:31:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_free_ring [2023-11-23 20:31:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-23 20:31:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-23 20:31:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_refill_rx [2023-11-23 20:31:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_refill_rx [2023-11-23 20:31:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_timer [2023-11-23 20:31:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_timer [2023-11-23 20:31:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-23 20:31:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-23 20:31:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 20:31:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 20:31:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-23 20:31:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-23 20:31:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_62 [2023-11-23 20:31:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_62 [2023-11-23 20:31:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 20:31:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 20:31:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:31:37,336 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:31:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:31:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx [2023-11-23 20:31:37,336 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx [2023-11-23 20:31:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:31:37,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:31:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61___0 [2023-11-23 20:31:37,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61___0 [2023-11-23 20:31:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2023-11-23 20:31:37,337 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2023-11-23 20:31:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_start_rxtx [2023-11-23 20:31:37,337 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_start_rxtx [2023-11-23 20:31:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-23 20:31:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-23 20:31:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_open [2023-11-23 20:31:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_open [2023-11-23 20:31:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-11-23 20:31:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-11-23 20:31:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 20:31:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 20:31:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-11-23 20:31:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-11-23 20:31:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-23 20:31:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-23 20:31:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-23 20:31:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-23 20:31:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_start_nway [2023-11-23 20:31:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_start_nway [2023-11-23 20:31:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-23 20:31:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-23 20:31:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_read_eeprom [2023-11-23 20:31:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_read_eeprom [2023-11-23 20:31:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:31:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_timer [2023-11-23 20:31:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_timer [2023-11-23 20:31:37,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 20:31:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 20:31:38,608 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:31:38,613 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:31:40,024 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:31:51,376 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 20:31:51,787 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:32:02,576 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:32:02,576 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:32:02,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:02 BoogieIcfgContainer [2023-11-23 20:32:02,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:32:02,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:32:02,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:32:02,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:32:02,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:31:29" (1/3) ... [2023-11-23 20:32:02,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f3c35ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:32:02, skipping insertion in model container [2023-11-23 20:32:02,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:35" (2/3) ... [2023-11-23 20:32:02,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f3c35ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:32:02, skipping insertion in model container [2023-11-23 20:32:02,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:02" (3/3) ... [2023-11-23 20:32:02,589 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2023-11-23 20:32:02,610 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:32:02,610 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-23 20:32:02,737 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:32:02,743 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;@1fba4438, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:32:02,743 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-23 20:32:02,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 2963 states, 1769 states have (on average 1.3431317128321085) internal successors, (2376), 1866 states have internal predecessors, (2376), 1055 states have call successors, (1055), 138 states have call predecessors, (1055), 137 states have return successors, (1048), 1012 states have call predecessors, (1048), 1048 states have call successors, (1048) [2023-11-23 20:32:02,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-23 20:32:02,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:32:02,785 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:32:02,786 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)] === [2023-11-23 20:32:02,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:32:02,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1783056208, now seen corresponding path program 1 times [2023-11-23 20:32:02,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:32:02,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164659435] [2023-11-23 20:32:02,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:02,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:32:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:32:04,284 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2023-11-23 20:32:04,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:32:04,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164659435] [2023-11-23 20:32:04,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164659435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:32:04,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:32:04,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:32:04,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442666024] [2023-11-23 20:32:04,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:32:04,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:32:04,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:32:04,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:32:04,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:32:04,352 INFO L87 Difference]: Start difference. First operand has 2963 states, 1769 states have (on average 1.3431317128321085) internal successors, (2376), 1866 states have internal predecessors, (2376), 1055 states have call successors, (1055), 138 states have call predecessors, (1055), 137 states have return successors, (1048), 1012 states have call predecessors, (1048), 1048 states have call successors, (1048) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16)