./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_83febf2e-8c9a-4463-b5f0-c8372650da87/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83febf2e-8c9a-4463-b5f0-c8372650da87/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83febf2e-8c9a-4463-b5f0-c8372650da87/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83febf2e-8c9a-4463-b5f0-c8372650da87/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83febf2e-8c9a-4463-b5f0-c8372650da87/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83febf2e-8c9a-4463-b5f0-c8372650da87/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e373372610053a8b3f90a6fe69a2e2f77f1b445737e9545423fdaf4f64c3f09c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:54:00,566 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:54:00,689 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83febf2e-8c9a-4463-b5f0-c8372650da87/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:54:00,693 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:54:00,694 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:54:00,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:54:00,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:54:00,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:54:00,733 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:54:00,733 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:54:00,734 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:54:00,734 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:54:00,735 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:54:00,735 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:54:00,736 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:54:00,736 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:54:00,737 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:54:00,737 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:54:00,738 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:54:00,738 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:54:00,739 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:54:00,739 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:54:00,740 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:54:00,741 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:54:00,741 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:54:00,741 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:54:00,742 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:54:00,742 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:54:00,743 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:54:00,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:54:00,744 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:54:00,744 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:54:00,745 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:54:00,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:54:00,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:54:00,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:54:00,746 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:54:00,746 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:54:00,747 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:54:00,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:54:00,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:54:00,748 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:54:00,748 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:54:00,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:54:00,749 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_83febf2e-8c9a-4463-b5f0-c8372650da87/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83febf2e-8c9a-4463-b5f0-c8372650da87/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e373372610053a8b3f90a6fe69a2e2f77f1b445737e9545423fdaf4f64c3f09c [2023-11-24 23:54:01,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:54:01,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:54:01,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:54:01,142 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:54:01,142 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:54:01,143 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83febf2e-8c9a-4463-b5f0-c8372650da87/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2023-11-24 23:54:04,153 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:54:04,848 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:54:04,849 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83febf2e-8c9a-4463-b5f0-c8372650da87/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2023-11-24 23:54:04,896 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83febf2e-8c9a-4463-b5f0-c8372650da87/bin/utaipan-verify-SwPr7d2a91/data/cb37942f6/e408d76c305a4d329e2e13e41e1beec6/FLAG01461838c [2023-11-24 23:54:04,913 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83febf2e-8c9a-4463-b5f0-c8372650da87/bin/utaipan-verify-SwPr7d2a91/data/cb37942f6/e408d76c305a4d329e2e13e41e1beec6 [2023-11-24 23:54:04,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:54:04,921 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:54:04,922 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:54:04,922 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:54:04,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:54:04,928 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:54:04" (1/1) ... [2023-11-24 23:54:04,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ef24c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:04, skipping insertion in model container [2023-11-24 23:54:04,930 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:54:04" (1/1) ... [2023-11-24 23:54:05,116 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:54:08,552 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_83febf2e-8c9a-4463-b5f0-c8372650da87/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330704,330717] [2023-11-24 23:54:08,559 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_83febf2e-8c9a-4463-b5f0-c8372650da87/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330873,330886] [2023-11-24 23:54:08,560 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_83febf2e-8c9a-4463-b5f0-c8372650da87/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331040,331053] [2023-11-24 23:54:08,560 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_83febf2e-8c9a-4463-b5f0-c8372650da87/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331208,331221] [2023-11-24 23:54:08,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:54:08,662 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:54:08,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5240] [2023-11-24 23:54:08,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5247] [2023-11-24 23:54:08,845 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5254] [2023-11-24 23:54:08,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5292-5293] [2023-11-24 23:54:08,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5298-5300] [2023-11-24 23:54:08,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5478-5479] [2023-11-24 23:54:08,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5512-5513] [2023-11-24 23:54:08,862 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (103), "i" (12UL)); [5549-5550] [2023-11-24 23:54:08,864 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (115), "i" (12UL)); [5586-5587] [2023-11-24 23:54:09,145 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_83febf2e-8c9a-4463-b5f0-c8372650da87/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330704,330717] [2023-11-24 23:54:09,146 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_83febf2e-8c9a-4463-b5f0-c8372650da87/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330873,330886] [2023-11-24 23:54:09,147 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_83febf2e-8c9a-4463-b5f0-c8372650da87/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331040,331053] [2023-11-24 23:54:09,147 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_83febf2e-8c9a-4463-b5f0-c8372650da87/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331208,331221] [2023-11-24 23:54:09,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:54:09,391 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:54:09,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:09 WrapperNode [2023-11-24 23:54:09,392 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:54:09,394 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:54:09,394 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:54:09,394 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:54:09,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:09" (1/1) ... [2023-11-24 23:54:09,600 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:09" (1/1) ... [2023-11-24 23:54:09,930 INFO L138 Inliner]: procedures = 423, calls = 1900, calls flagged for inlining = 204, calls inlined = 187, statements flattened = 5724 [2023-11-24 23:54:09,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:54:09,933 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:54:09,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:54:09,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:54:09,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:09" (1/1) ... [2023-11-24 23:54:09,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:09" (1/1) ... [2023-11-24 23:54:09,987 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:09" (1/1) ... [2023-11-24 23:54:09,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:09" (1/1) ... [2023-11-24 23:54:10,141 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:09" (1/1) ... [2023-11-24 23:54:10,296 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:09" (1/1) ... [2023-11-24 23:54:10,341 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:09" (1/1) ... [2023-11-24 23:54:10,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:09" (1/1) ... [2023-11-24 23:54:10,420 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:54:10,424 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:54:10,424 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:54:10,425 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:54:10,426 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:09" (1/1) ... [2023-11-24 23:54:10,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:54:10,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83febf2e-8c9a-4463-b5f0-c8372650da87/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:54:10,469 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83febf2e-8c9a-4463-b5f0-c8372650da87/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:54:10,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83febf2e-8c9a-4463-b5f0-c8372650da87/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:54:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-24 23:54:10,525 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-24 23:54:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 23:54:10,526 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 23:54:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:54:10,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:54:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-24 23:54:10,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-24 23:54:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-24 23:54:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-24 23:54:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-24 23:54:10,529 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-24 23:54:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-24 23:54:10,531 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-24 23:54:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure desc_to_dma [2023-11-24 23:54:10,532 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_to_dma [2023-11-24 23:54:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-24 23:54:10,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-24 23:54:10,533 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-11-24 23:54:10,533 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-11-24 23:54:10,533 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-24 23:54:10,533 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-24 23:54:10,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-24 23:54:10,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-24 23:54:10,534 INFO L130 BoogieDeclarations]: Found specification of procedure mii_write [2023-11-24 23:54:10,534 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_write [2023-11-24 23:54:10,534 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-24 23:54:10,534 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-24 23:54:10,535 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-24 23:54:10,535 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-24 23:54:10,535 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-24 23:54:10,535 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-24 23:54:10,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-24 23:54:10,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-24 23:54:10,536 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-24 23:54:10,536 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-24 23:54:10,536 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast [2023-11-24 23:54:10,536 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast [2023-11-24 23:54:10,536 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-24 23:54:10,536 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-24 23:54:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:54:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-24 23:54:10,537 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-24 23:54:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-24 23:54:10,538 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-24 23:54:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-24 23:54:10,538 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-24 23:54:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:54:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-24 23:54:10,540 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-24 23:54:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-24 23:54:10,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-24 23:54:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:54:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-24 23:54:10,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-24 23:54:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:54:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-24 23:54:10,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-24 23:54:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:54:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:54:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-24 23:54:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-24 23:54:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-24 23:54:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-24 23:54:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-24 23:54:10,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-24 23:54:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-24 23:54:10,544 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-24 23:54:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-24 23:54:10,544 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-24 23:54:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-24 23:54:10,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-24 23:54:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:54:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-24 23:54:10,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-24 23:54:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-24 23:54:10,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-24 23:54:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure rio_close [2023-11-24 23:54:10,546 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_close [2023-11-24 23:54:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:54:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2023-11-24 23:54:10,547 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2023-11-24 23:54:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-24 23:54:10,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-24 23:54:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-24 23:54:10,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-24 23:54:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:54:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-24 23:54:10,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-24 23:54:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:54:10,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:54:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:54:10,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:54:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure mii_read [2023-11-24 23:54:10,549 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_read [2023-11-24 23:54:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-24 23:54:10,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-24 23:54:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-24 23:54:10,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-24 23:54:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-24 23:54:10,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-24 23:54:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-24 23:54:10,552 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-24 23:54:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-24 23:54:10,552 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-24 23:54:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-24 23:54:10,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-24 23:54:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:54:10,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:54:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:54:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:54:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-24 23:54:10,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-24 23:54:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-24 23:54:10,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-24 23:54:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-24 23:54:10,554 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-24 23:54:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats [2023-11-24 23:54:10,554 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats [2023-11-24 23:54:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-24 23:54:10,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-24 23:54:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-24 23:54:10,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-24 23:54:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-24 23:54:10,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-24 23:54:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-24 23:54:10,556 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-24 23:54:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2023-11-24 23:54:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2023-11-24 23:54:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-24 23:54:10,558 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-24 23:54:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-24 23:54:10,559 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-24 23:54:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:54:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netdev_private [2023-11-24 23:54:10,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netdev_private [2023-11-24 23:54:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure rio_open [2023-11-24 23:54:10,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_open [2023-11-24 23:54:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:54:10,565 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-24 23:54:10,565 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-24 23:54:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netdev_private [2023-11-24 23:54:10,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netdev_private [2023-11-24 23:54:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:54:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 23:54:10,572 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 23:54:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-24 23:54:10,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-24 23:54:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-24 23:54:10,572 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-24 23:54:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-24 23:54:10,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-24 23:54:10,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netdev_private [2023-11-24 23:54:10,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netdev_private [2023-11-24 23:54:10,573 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-24 23:54:10,573 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-24 23:54:10,573 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-24 23:54:10,573 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-24 23:54:10,573 INFO L130 BoogieDeclarations]: Found specification of procedure rio_free_tx [2023-11-24 23:54:10,574 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_free_tx [2023-11-24 23:54:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure rio_tx_timeout [2023-11-24 23:54:10,574 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_tx_timeout [2023-11-24 23:54:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netdev_private [2023-11-24 23:54:10,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netdev_private [2023-11-24 23:54:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure rio_remove1 [2023-11-24 23:54:10,574 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_remove1 [2023-11-24 23:54:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:54:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:54:10,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:54:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rio_driver_exit_14_2 [2023-11-24 23:54:10,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rio_driver_exit_14_2 [2023-11-24 23:54:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2023-11-24 23:54:10,575 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2023-11-24 23:54:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-24 23:54:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-24 23:54:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure mii_set_media [2023-11-24 23:54:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_set_media [2023-11-24 23:54:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-24 23:54:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-24 23:54:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-24 23:54:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-24 23:54:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:54:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-24 23:54:10,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-24 23:54:11,521 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:54:11,527 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:54:11,624 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-24 23:54:16,333 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-24 23:54:16,519 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:54:20,657 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:54:20,657 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-24 23:54:20,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:54:20 BoogieIcfgContainer [2023-11-24 23:54:20,661 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:54:20,667 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:54:20,667 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:54:20,671 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:54:20,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:54:04" (1/3) ... [2023-11-24 23:54:20,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3218b462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:54:20, skipping insertion in model container [2023-11-24 23:54:20,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:09" (2/3) ... [2023-11-24 23:54:20,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3218b462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:54:20, skipping insertion in model container [2023-11-24 23:54:20,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:54:20" (3/3) ... [2023-11-24 23:54:20,676 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2023-11-24 23:54:20,702 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:54:20,702 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-24 23:54:20,836 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:54:20,846 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;@4e0b2576, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:54:20,847 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-24 23:54:20,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 1489 states, 878 states have (on average 1.275626423690205) internal successors, (1120), 907 states have internal predecessors, (1120), 530 states have call successors, (530), 84 states have call predecessors, (530), 83 states have return successors, (524), 521 states have call predecessors, (524), 524 states have call successors, (524) [2023-11-24 23:54:20,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-24 23:54:20,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:54:20,988 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:54:20,989 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)] === [2023-11-24 23:54:21,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:54:21,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1336525345, now seen corresponding path program 1 times [2023-11-24 23:54:21,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:54:21,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603938932] [2023-11-24 23:54:21,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:54:21,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:54:21,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:54:21,953 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-24 23:54:21,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:54:21,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603938932] [2023-11-24 23:54:21,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603938932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:54:21,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:54:21,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:54:21,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593868491] [2023-11-24 23:54:21,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:54:21,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:54:21,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:54:21,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:54:21,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:54:22,003 INFO L87 Difference]: Start difference. First operand has 1489 states, 878 states have (on average 1.275626423690205) internal successors, (1120), 907 states have internal predecessors, (1120), 530 states have call successors, (530), 84 states have call predecessors, (530), 83 states have return successors, (524), 521 states have call predecessors, (524), 524 states have call successors, (524) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-24 23:54:25,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:54:28,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:54:30,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:54:31,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:54:31,582 INFO L93 Difference]: Finished difference Result 4324 states and 6367 transitions. [2023-11-24 23:54:31,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:54:31,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2023-11-24 23:54:31,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:54:31,644 INFO L225 Difference]: With dead ends: 4324 [2023-11-24 23:54:31,644 INFO L226 Difference]: Without dead ends: 2844 [2023-11-24 23:54:31,660 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 [2023-11-24 23:54:31,664 INFO L413 NwaCegarLoop]: 1846 mSDtfsCounter, 2025 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 3648 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:54:31,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2025 Valid, 3648 Invalid, 628 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 618 Invalid, 3 Unknown, 0 Unchecked, 9.1s Time] [2023-11-24 23:54:31,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2023-11-24 23:54:31,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2840. [2023-11-24 23:54:31,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2840 states, 1679 states have (on average 1.2686122692078619) internal successors, (2130), 1730 states have internal predecessors, (2130), 996 states have call successors, (996), 163 states have call predecessors, (996), 162 states have return successors, (992), 986 states have call predecessors, (992), 992 states have call successors, (992) [2023-11-24 23:54:31,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 4118 transitions. [2023-11-24 23:54:31,991 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 4118 transitions. Word has length 111 [2023-11-24 23:54:31,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:54:31,993 INFO L495 AbstractCegarLoop]: Abstraction has 2840 states and 4118 transitions. [2023-11-24 23:54:31,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-24 23:54:31,993 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 4118 transitions. [2023-11-24 23:54:32,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-24 23:54:32,002 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:54:32,003 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:54:32,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:54:32,003 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-24 23:54:32,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:54:32,004 INFO L85 PathProgramCache]: Analyzing trace with hash 2133200515, now seen corresponding path program 1 times [2023-11-24 23:54:32,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:54:32,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929869356] [2023-11-24 23:54:32,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:54:32,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:54:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:54:32,598 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-24 23:54:32,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:54:32,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929869356] [2023-11-24 23:54:32,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929869356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:54:32,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:54:32,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:54:32,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831133404] [2023-11-24 23:54:32,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:54:32,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:54:32,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:54:32,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:54:32,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:54:32,609 INFO L87 Difference]: Start difference. First operand 2840 states and 4118 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-24 23:54:36,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:54:39,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:54:41,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:54:42,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:54:42,323 INFO L93 Difference]: Finished difference Result 8354 states and 12112 transitions. [2023-11-24 23:54:42,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:54:42,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2023-11-24 23:54:42,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:54:42,381 INFO L225 Difference]: With dead ends: 8354 [2023-11-24 23:54:42,382 INFO L226 Difference]: Without dead ends: 5533 [2023-11-24 23:54:42,404 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 [2023-11-24 23:54:42,406 INFO L413 NwaCegarLoop]: 1862 mSDtfsCounter, 2041 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2041 SdHoareTripleChecker+Valid, 3627 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:54:42,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2041 Valid, 3627 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 610 Invalid, 3 Unknown, 0 Unchecked, 9.3s Time] [2023-11-24 23:54:42,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5533 states. [2023-11-24 23:54:42,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5533 to 5503. [2023-11-24 23:54:42,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5503 states, 3264 states have (on average 1.2699142156862746) internal successors, (4145), 3368 states have internal predecessors, (4145), 1915 states have call successors, (1915), 324 states have call predecessors, (1915), 321 states have return successors, (1921), 1888 states have call predecessors, (1921), 1911 states have call successors, (1921) [2023-11-24 23:54:43,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5503 states to 5503 states and 7981 transitions. [2023-11-24 23:54:43,040 INFO L78 Accepts]: Start accepts. Automaton has 5503 states and 7981 transitions. Word has length 115 [2023-11-24 23:54:43,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:54:43,042 INFO L495 AbstractCegarLoop]: Abstraction has 5503 states and 7981 transitions. [2023-11-24 23:54:43,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-24 23:54:43,042 INFO L276 IsEmpty]: Start isEmpty. Operand 5503 states and 7981 transitions. [2023-11-24 23:54:43,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-24 23:54:43,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:54:43,049 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:54:43,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:54:43,050 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-24 23:54:43,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:54:43,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1189463435, now seen corresponding path program 1 times [2023-11-24 23:54:43,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:54:43,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488792686] [2023-11-24 23:54:43,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:54:43,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:54:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:54:43,761 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2023-11-24 23:54:43,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:54:43,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488792686] [2023-11-24 23:54:43,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488792686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:54:43,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:54:43,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 23:54:43,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023549889] [2023-11-24 23:54:43,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:54:43,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:54:43,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:54:43,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:54:43,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:54:43,765 INFO L87 Difference]: Start difference. First operand 5503 states and 7981 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15)