./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-atheros-atl1e-atl1e.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_1035facf-4425-4107-9374-c9ffe45e41ef/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1035facf-4425-4107-9374-c9ffe45e41ef/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1035facf-4425-4107-9374-c9ffe45e41ef/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1035facf-4425-4107-9374-c9ffe45e41ef/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1035facf-4425-4107-9374-c9ffe45e41ef/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1035facf-4425-4107-9374-c9ffe45e41ef/bin/utaipan-verify-nQ1chXbOIh --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 6757464a5622bb83d03b39d9677b81f434099fef913b81074103632b3c898f25 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:31:28,783 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:31:28,867 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1035facf-4425-4107-9374-c9ffe45e41ef/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 12:31:28,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:31:28,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:31:28,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:31:28,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:31:28,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:31:28,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:31:28,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:31:28,900 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:31:28,900 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:31:28,901 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:31:28,901 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:31:28,902 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:31:28,902 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:31:28,903 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:31:28,903 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:31:28,904 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:31:28,904 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:31:28,905 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:31:28,905 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:31:28,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:31:28,907 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:31:28,907 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:31:28,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:31:28,908 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:31:28,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:31:28,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:31:28,909 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:31:28,909 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:31:28,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:31:28,910 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:31:28,910 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:31:28,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:31:28,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:31:28,911 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:31:28,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:31:28,911 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:31:28,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:31:28,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:31:28,912 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:31:28,912 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:31:28,912 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:31:28,913 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_1035facf-4425-4107-9374-c9ffe45e41ef/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1035facf-4425-4107-9374-c9ffe45e41ef/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6757464a5622bb83d03b39d9677b81f434099fef913b81074103632b3c898f25 [2023-12-02 12:31:29,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:31:29,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:31:29,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:31:29,192 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:31:29,193 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:31:29,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1035facf-4425-4107-9374-c9ffe45e41ef/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2023-12-02 12:31:31,891 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:31:32,459 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:31:32,459 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1035facf-4425-4107-9374-c9ffe45e41ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2023-12-02 12:31:32,508 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1035facf-4425-4107-9374-c9ffe45e41ef/bin/utaipan-verify-nQ1chXbOIh/data/7f3f51574/2f66f3d09dbe4047aa963eec46624702/FLAGb14d8aa0e [2023-12-02 12:31:32,522 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1035facf-4425-4107-9374-c9ffe45e41ef/bin/utaipan-verify-nQ1chXbOIh/data/7f3f51574/2f66f3d09dbe4047aa963eec46624702 [2023-12-02 12:31:32,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:31:32,526 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:31:32,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:31:32,527 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:31:32,531 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:31:32,532 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:31:32" (1/1) ... [2023-12-02 12:31:32,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1647892b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:31:32, skipping insertion in model container [2023-12-02 12:31:32,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:31:32" (1/1) ... [2023-12-02 12:31:32,709 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:31:36,372 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_1035facf-4425-4107-9374-c9ffe45e41ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463113,463126] [2023-12-02 12:31:36,375 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_1035facf-4425-4107-9374-c9ffe45e41ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463282,463295] [2023-12-02 12:31:36,376 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_1035facf-4425-4107-9374-c9ffe45e41ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463449,463462] [2023-12-02 12:31:36,376 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_1035facf-4425-4107-9374-c9ffe45e41ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463617,463630] [2023-12-02 12:31:36,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:31:36,471 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:31:36,557 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"); [6191] [2023-12-02 12:31:36,559 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)); [6198] [2023-12-02 12:31:36,559 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [6205] [2023-12-02 12:31:36,561 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)); [6252-6253] [2023-12-02 12:31:36,561 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"); [6258-6260] [2023-12-02 12:31:36,562 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; incl %0": "+m" (v->counter)); [6287] [2023-12-02 12:31:36,562 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; decl %0": "+m" (v->counter)); [6294] [2023-12-02 12:31:36,563 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [6301] [2023-12-02 12:31:36,563 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [6356] [2023-12-02 12:31:36,563 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6359] [2023-12-02 12:31:36,564 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6362] [2023-12-02 12:31:36,564 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6365] [2023-12-02 12:31:36,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [6458] [2023-12-02 12:31:36,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [6466] [2023-12-02 12:31:36,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [6473] [2023-12-02 12:31:36,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [6480] [2023-12-02 12:31:36,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [6487] [2023-12-02 12:31:36,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ (" addl %1,%0\n adcl $0xffff,%0": "=r" (sum): "r" (sum << 16), "0" (sum & 4294901760U)); [6514] [2023-12-02 12:31:36,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ (" addl %1, %0\n adcl %2, %0\n adcl %3, %0\n adcl $0, %0\n": "=r" (sum): "g" (daddr), "g" (saddr), "g" (((int )len + (int )proto) << 8), "0" (sum)); [6522-6523] [2023-12-02 12:31:36,571 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)); [6596-6597] [2023-12-02 12:31:36,573 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)); [6630-6631] [2023-12-02 12:31:36,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (79), "i" (12UL)); [6671-6672] [2023-12-02 12:31:36,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (91), "i" (12UL)); [6700-6701] [2023-12-02 12:31:36,584 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)); [7191-7192] [2023-12-02 12:31:36,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7198] [2023-12-02 12:31:36,699 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 *)"drivers/net/ethernet/atheros/atl1e/atl1e_main.c"), "i" (1806), "i" (12UL)); [10075-10076] [2023-12-02 12:31:36,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [10140] [2023-12-02 12:31:36,764 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [13444] [2023-12-02 12:31:36,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [13692] [2023-12-02 12:31:36,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [13705] [2023-12-02 12:31:36,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [13729] [2023-12-02 12:31:36,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [13742] [2023-12-02 12:31:36,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [14073] [2023-12-02 12:31:36,847 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 *)"drivers/net/ethernet/atheros/atl1e/atl1e_param.c"), "i" (163), "i" (12UL)); [15074-15075] [2023-12-02 12:31:36,879 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_1035facf-4425-4107-9374-c9ffe45e41ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463113,463126] [2023-12-02 12:31:36,880 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_1035facf-4425-4107-9374-c9ffe45e41ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463282,463295] [2023-12-02 12:31:36,880 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_1035facf-4425-4107-9374-c9ffe45e41ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463449,463462] [2023-12-02 12:31:36,880 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_1035facf-4425-4107-9374-c9ffe45e41ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463617,463630] [2023-12-02 12:31:36,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:31:37,272 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:31:37,280 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:31:37,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:31:37 WrapperNode [2023-12-02 12:31:37,281 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:31:37,282 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:31:37,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:31:37,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:31:37,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:31:37" (1/1) ... [2023-12-02 12:31:37,394 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:31:37" (1/1) ... [2023-12-02 12:31:37,624 INFO L138 Inliner]: procedures = 625, calls = 3521, calls flagged for inlining = 313, calls inlined = 277, statements flattened = 9318 [2023-12-02 12:31:37,625 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:31:37,625 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:31:37,625 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:31:37,626 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:31:37,690 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:31:37" (1/1) ... [2023-12-02 12:31:37,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:31:37" (1/1) ... [2023-12-02 12:31:37,725 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:31:37" (1/1) ... [2023-12-02 12:31:37,726 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:31:37" (1/1) ... [2023-12-02 12:31:37,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:31:37" (1/1) ... [2023-12-02 12:31:37,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:31:37" (1/1) ... [2023-12-02 12:31:37,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:31:37" (1/1) ... [2023-12-02 12:31:37,986 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:31:37" (1/1) ... [2023-12-02 12:31:38,102 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:31:38,103 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:31:38,103 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:31:38,103 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:31:38,104 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:31:37" (1/1) ... [2023-12-02 12:31:38,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:31:38,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1035facf-4425-4107-9374-c9ffe45e41ef/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:31:38,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1035facf-4425-4107-9374-c9ffe45e41ef/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:31:38,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1035facf-4425-4107-9374-c9ffe45e41ef/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:31:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-12-02 12:31:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-12-02 12:31:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-12-02 12:31:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-12-02 12:31:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_phy_reg [2023-12-02 12:31:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_phy_reg [2023-12-02 12:31:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-12-02 12:31:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-12-02 12:31:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_force_ps [2023-12-02 12:31:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_force_ps [2023-12-02 12:31:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2023-12-02 12:31:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2023-12-02 12:31:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-12-02 12:31:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-12-02 12:31:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_89 [2023-12-02 12:31:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_89 [2023-12-02 12:31:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 12:31:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 12:31:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_del_timer [2023-12-02 12:31:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_del_timer [2023-12-02 12:31:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2023-12-02 12:31:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2023-12-02 12:31:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_78 [2023-12-02 12:31:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_78 [2023-12-02 12:31:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-12-02 12:31:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-12-02 12:31:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-12-02 12:31:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-12-02 12:31:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-12-02 12:31:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-12-02 12:31:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-12-02 12:31:38,170 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-12-02 12:31:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-12-02 12:31:38,170 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-12-02 12:31:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-12-02 12:31:38,170 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-12-02 12:31:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_disable [2023-12-02 12:31:38,170 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_disable [2023-12-02 12:31:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_resume [2023-12-02 12:31:38,171 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_resume [2023-12-02 12:31:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_restart_autoneg [2023-12-02 12:31:38,171 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_restart_autoneg [2023-12-02 12:31:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-12-02 12:31:38,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-12-02 12:31:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_close [2023-12-02 12:31:38,171 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_close [2023-12-02 12:31:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-12-02 12:31:38,171 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-12-02 12:31:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-12-02 12:31:38,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-12-02 12:31:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tpd [2023-12-02 12:31:38,172 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tpd [2023-12-02 12:31:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-12-02 12:31:38,172 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-12-02 12:31:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-12-02 12:31:38,172 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-12-02 12:31:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-12-02 12:31:38,173 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-12-02 12:31:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-12-02 12:31:38,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-12-02 12:31:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-12-02 12:31:38,173 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-12-02 12:31:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_irq [2023-12-02 12:31:38,173 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_irq [2023-12-02 12:31:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-12-02 12:31:38,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-12-02 12:31:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-12-02 12:31:38,174 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-12-02 12:31:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 12:31:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2023-12-02 12:31:38,174 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2023-12-02 12:31:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_shutdown [2023-12-02 12:31:38,174 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_shutdown [2023-12-02 12:31:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-12-02 12:31:38,174 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-12-02 12:31:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_check_eeprom_exist [2023-12-02 12:31:38,175 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_check_eeprom_exist [2023-12-02 12:31:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2023-12-02 12:31:38,175 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2023-12-02 12:31:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-12-02 12:31:38,175 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-12-02 12:31:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-12-02 12:31:38,175 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-12-02 12:31:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-12-02 12:31:38,175 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-12-02 12:31:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 12:31:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_hw_set_mac_addr [2023-12-02 12:31:38,176 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_hw_set_mac_addr [2023-12-02 12:31:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-12-02 12:31:38,176 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-12-02 12:31:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-12-02 12:31:38,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-12-02 12:31:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tx_buffer [2023-12-02 12:31:38,176 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tx_buffer [2023-12-02 12:31:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 12:31:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-12-02 12:31:38,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-12-02 12:31:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 12:31:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-12-02 12:31:38,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-12-02 12:31:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 12:31:38,177 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 12:31:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-12-02 12:31:38,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-12-02 12:31:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2023-12-02 12:31:38,178 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2023-12-02 12:31:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-12-02 12:31:38,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-12-02 12:31:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2023-12-02 12:31:38,178 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2023-12-02 12:31:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-12-02 12:31:38,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-12-02 12:31:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_reset [2023-12-02 12:31:38,179 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_reset [2023-12-02 12:31:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-12-02 12:31:38,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-12-02 12:31:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-12-02 12:31:38,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-12-02 12:31:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_down [2023-12-02 12:31:38,179 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_down [2023-12-02 12:31:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-12-02 12:31:38,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-12-02 12:31:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 12:31:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure __atl1e_vlan_mode [2023-12-02 12:31:38,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl1e_vlan_mode [2023-12-02 12:31:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-12-02 12:31:38,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-12-02 12:31:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-12-02 12:31:38,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-12-02 12:31:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:31:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-12-02 12:31:38,180 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-12-02 12:31:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-12-02 12:31:38,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-12-02 12:31:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-12-02 12:31:38,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-12-02 12:31:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 12:31:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-12-02 12:31:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2023-12-02 12:31:38,181 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2023-12-02 12:31:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2023-12-02 12:31:38,181 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2023-12-02 12:31:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_multi [2023-12-02 12:31:38,181 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_multi [2023-12-02 12:31:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_remove [2023-12-02 12:31:38,182 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_remove [2023-12-02 12:31:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-12-02 12:31:38,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-12-02 12:31:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_atl1e_driver_exit_14_2 [2023-12-02 12:31:38,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_atl1e_driver_exit_14_2 [2023-12-02 12:31:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-12-02 12:31:38,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-12-02 12:31:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-12-02 12:31:38,182 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-12-02 12:31:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-12-02 12:31:38,183 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-12-02 12:31:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-12-02 12:31:38,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-12-02 12:31:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_ring_resources [2023-12-02 12:31:38,183 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_ring_resources [2023-12-02 12:31:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2023-12-02 12:31:38,183 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2023-12-02 12:31:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-12-02 12:31:38,183 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-12-02 12:31:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-12-02 12:31:38,183 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-12-02 12:31:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_validate_option [2023-12-02 12:31:38,184 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_validate_option [2023-12-02 12:31:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2023-12-02 12:31:38,184 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2023-12-02 12:31:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-12-02 12:31:38,184 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-12-02 12:31:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:31:38,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:31:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2023-12-02 12:31:38,184 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2023-12-02 12:31:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-12-02 12:31:38,185 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-12-02 12:31:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 12:31:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 12:31:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 12:31:38,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 12:31:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-12-02 12:31:38,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-12-02 12:31:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-12-02 12:31:38,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-12-02 12:31:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-12-02 12:31:38,186 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-12-02 12:31:38,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2023-12-02 12:31:38,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2023-12-02 12:31:38,186 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-12-02 12:31:38,186 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-12-02 12:31:38,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-12-02 12:31:38,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-12-02 12:31:38,186 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_tx_ring [2023-12-02 12:31:38,186 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_tx_ring [2023-12-02 12:31:38,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mdio_lock_of_atl1e_adapter [2023-12-02 12:31:38,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mdio_lock_of_atl1e_adapter [2023-12-02 12:31:38,187 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-12-02 12:31:38,187 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-12-02 12:31:38,187 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2023-12-02 12:31:38,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2023-12-02 12:31:38,187 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-12-02 12:31:38,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-12-02 12:31:38,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mdio_lock_of_atl1e_adapter [2023-12-02 12:31:38,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mdio_lock_of_atl1e_adapter [2023-12-02 12:31:38,187 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-12-02 12:31:38,187 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-12-02 12:31:38,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 12:31:38,188 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 12:31:38,188 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_resume [2023-12-02 12:31:38,188 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_resume [2023-12-02 12:31:38,188 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_notice [2023-12-02 12:31:38,188 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_notice [2023-12-02 12:31:38,188 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-12-02 12:31:38,188 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-12-02 12:31:38,188 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-12-02 12:31:38,188 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-12-02 12:31:38,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 12:31:38,188 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-12-02 12:31:38,189 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-12-02 12:31:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2023-12-02 12:31:38,189 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2023-12-02 12:31:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-12-02 12:31:38,189 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-12-02 12:31:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_tx_timeout [2023-12-02 12:31:38,189 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_tx_timeout [2023-12-02 12:31:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 12:31:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_vlan_mode [2023-12-02 12:31:38,189 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_vlan_mode [2023-12-02 12:31:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_write_phy_reg [2023-12-02 12:31:38,189 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_write_phy_reg [2023-12-02 12:31:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2023-12-02 12:31:38,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2023-12-02 12:31:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_up [2023-12-02 12:31:38,190 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_up [2023-12-02 12:31:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 12:31:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-12-02 12:31:38,190 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-12-02 12:31:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_commit [2023-12-02 12:31:38,190 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_commit [2023-12-02 12:31:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2023-12-02 12:31:38,191 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2023-12-02 12:31:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2023-12-02 12:31:38,191 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2023-12-02 12:31:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-12-02 12:31:38,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-12-02 12:31:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-12-02 12:31:38,191 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-12-02 12:31:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-12-02 12:31:38,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-12-02 12:31:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-12-02 12:31:38,191 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-12-02 12:31:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-12-02 12:31:38,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-12-02 12:31:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reinit_locked [2023-12-02 12:31:38,192 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reinit_locked [2023-12-02 12:31:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2023-12-02 12:31:38,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2023-12-02 12:31:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_init [2023-12-02 12:31:38,192 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_init [2023-12-02 12:31:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_intr [2023-12-02 12:31:38,192 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_intr [2023-12-02 12:31:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-12-02 12:31:38,193 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-12-02 12:31:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2023-12-02 12:31:38,193 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2023-12-02 12:31:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_open [2023-12-02 12:31:38,193 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_open [2023-12-02 12:31:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-12-02 12:31:38,193 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-12-02 12:31:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2023-12-02 12:31:38,193 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2023-12-02 12:31:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_enable [2023-12-02 12:31:38,193 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_enable [2023-12-02 12:31:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 12:31:38,194 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 12:31:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 12:31:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_netpoll [2023-12-02 12:31:38,194 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_netpoll [2023-12-02 12:31:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 12:31:38,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 12:31:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2023-12-02 12:31:38,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2023-12-02 12:31:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_eeprom [2023-12-02 12:31:38,194 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_eeprom [2023-12-02 12:31:38,195 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_suspend [2023-12-02 12:31:38,195 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_suspend [2023-12-02 12:31:38,195 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-12-02 12:31:38,195 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-12-02 12:31:38,195 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-12-02 12:31:38,195 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-12-02 12:31:38,195 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_nway_reset [2023-12-02 12:31:38,195 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_nway_reset [2023-12-02 12:31:38,195 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-12-02 12:31:38,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-12-02 12:31:38,195 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_request_irq [2023-12-02 12:31:38,196 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_request_irq [2023-12-02 12:31:38,196 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2023-12-02 12:31:38,196 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2023-12-02 12:31:38,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-12-02 12:31:38,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-12-02 12:31:38,196 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-12-02 12:31:38,196 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-12-02 12:31:38,196 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-12-02 12:31:38,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-12-02 12:31:38,196 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_eeprom_len [2023-12-02 12:31:38,196 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_eeprom_len [2023-12-02 12:31:38,196 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-12-02 12:31:38,197 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-12-02 12:31:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-12-02 12:31:38,197 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-12-02 12:31:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_hw [2023-12-02 12:31:38,197 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_hw [2023-12-02 12:31:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-12-02 12:31:38,197 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-12-02 12:31:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-12-02 12:31:38,197 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-12-02 12:31:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:31:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2023-12-02 12:31:38,197 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2023-12-02 12:31:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-12-02 12:31:38,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-12-02 12:31:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_regs_len [2023-12-02 12:31:38,198 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_regs_len [2023-12-02 12:31:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_rx_ring [2023-12-02 12:31:38,198 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_rx_ring [2023-12-02 12:31:39,287 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:31:39,292 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:31:39,659 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 12:31:49,643 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-12-02 12:31:49,932 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:31:53,264 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:31:53,265 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 12:31:53,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:31:53 BoogieIcfgContainer [2023-12-02 12:31:53,267 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:31:53,270 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:31:53,270 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:31:53,273 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:31:53,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:31:32" (1/3) ... [2023-12-02 12:31:53,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1db747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:31:53, skipping insertion in model container [2023-12-02 12:31:53,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:31:37" (2/3) ... [2023-12-02 12:31:53,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1db747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:31:53, skipping insertion in model container [2023-12-02 12:31:53,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:31:53" (3/3) ... [2023-12-02 12:31:53,276 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2023-12-02 12:31:53,296 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:31:53,296 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-02 12:31:53,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:31:53,393 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;@950ec9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:31:53,393 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-02 12:31:53,407 INFO L276 IsEmpty]: Start isEmpty. Operand has 2336 states, 1370 states have (on average 1.2722627737226277) internal successors, (1743), 1392 states have internal predecessors, (1743), 808 states have call successors, (808), 155 states have call predecessors, (808), 154 states have return successors, (802), 800 states have call predecessors, (802), 802 states have call successors, (802) [2023-12-02 12:31:53,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-02 12:31:53,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:31:53,432 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:31:53,432 INFO L420 AbstractCegarLoop]: === Iteration 1 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:31:53,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:31:53,438 INFO L85 PathProgramCache]: Analyzing trace with hash 120450548, now seen corresponding path program 1 times [2023-12-02 12:31:53,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:31:53,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976143285] [2023-12-02 12:31:53,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:31:53,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:31:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:31:54,226 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2023-12-02 12:31:54,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:31:54,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976143285] [2023-12-02 12:31:54,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976143285] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:31:54,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:31:54,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:31:54,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507455430] [2023-12-02 12:31:54,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:31:54,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:31:54,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:31:54,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:31:54,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:31:54,266 INFO L87 Difference]: Start difference. First operand has 2336 states, 1370 states have (on average 1.2722627737226277) internal successors, (1743), 1392 states have internal predecessors, (1743), 808 states have call successors, (808), 155 states have call predecessors, (808), 154 states have return successors, (802), 800 states have call predecessors, (802), 802 states have call successors, (802) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-02 12:31:56,608 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 [] [2023-12-02 12:31:59,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:01,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:05,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:07,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:09,974 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 [] [2023-12-02 12:32:10,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:32:10,852 INFO L93 Difference]: Finished difference Result 6873 states and 9963 transitions. [2023-12-02 12:32:10,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:32:10,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 161 [2023-12-02 12:32:10,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:32:10,904 INFO L225 Difference]: With dead ends: 6873 [2023-12-02 12:32:10,904 INFO L226 Difference]: Without dead ends: 4551 [2023-12-02 12:32:10,921 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 [2023-12-02 12:32:10,924 INFO L413 NwaCegarLoop]: 3054 mSDtfsCounter, 3283 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3283 SdHoareTripleChecker+Valid, 5894 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:32:10,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3283 Valid, 5894 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 856 Invalid, 6 Unknown, 0 Unchecked, 16.2s Time] [2023-12-02 12:32:10,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4551 states. [2023-12-02 12:32:11,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4551 to 4518. [2023-12-02 12:32:11,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4518 states, 2673 states have (on average 1.2712308267863823) internal successors, (3398), 2722 states have internal predecessors, (3398), 1542 states have call successors, (1542), 305 states have call predecessors, (1542), 299 states have return successors, (1543), 1518 states have call predecessors, (1543), 1538 states have call successors, (1543) [2023-12-02 12:32:11,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4518 states to 4518 states and 6483 transitions. [2023-12-02 12:32:11,322 INFO L78 Accepts]: Start accepts. Automaton has 4518 states and 6483 transitions. Word has length 161 [2023-12-02 12:32:11,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:32:11,324 INFO L495 AbstractCegarLoop]: Abstraction has 4518 states and 6483 transitions. [2023-12-02 12:32:11,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-02 12:32:11,324 INFO L276 IsEmpty]: Start isEmpty. Operand 4518 states and 6483 transitions. [2023-12-02 12:32:11,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-02 12:32:11,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:32:11,331 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:32:11,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 12:32:11,331 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:32:11,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:32:11,332 INFO L85 PathProgramCache]: Analyzing trace with hash 723817438, now seen corresponding path program 1 times [2023-12-02 12:32:11,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:32:11,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872391961] [2023-12-02 12:32:11,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:11,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:32:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:11,728 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2023-12-02 12:32:11,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:32:11,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872391961] [2023-12-02 12:32:11,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872391961] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:32:11,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:32:11,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:32:11,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704022481] [2023-12-02 12:32:11,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:32:11,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:32:11,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:32:11,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:32:11,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:32:11,732 INFO L87 Difference]: Start difference. First operand 4518 states and 6483 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-02 12:32:14,033 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 [] [2023-12-02 12:32:17,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:19,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:22,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:25,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:27,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:27,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:32:27,980 INFO L93 Difference]: Finished difference Result 13405 states and 19224 transitions. [2023-12-02 12:32:27,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:32:27,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 161 [2023-12-02 12:32:27,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:32:28,050 INFO L225 Difference]: With dead ends: 13405 [2023-12-02 12:32:28,050 INFO L226 Difference]: Without dead ends: 8916 [2023-12-02 12:32:28,069 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 [2023-12-02 12:32:28,071 INFO L413 NwaCegarLoop]: 2914 mSDtfsCounter, 3202 mSDsluCounter, 2872 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3202 SdHoareTripleChecker+Valid, 5786 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2023-12-02 12:32:28,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3202 Valid, 5786 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 857 Invalid, 5 Unknown, 0 Unchecked, 15.9s Time] [2023-12-02 12:32:28,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8916 states. [2023-12-02 12:32:28,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8916 to 8910. [2023-12-02 12:32:28,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8910 states, 5294 states have (on average 1.2706837929731771) internal successors, (6727), 5383 states have internal predecessors, (6727), 3017 states have call successors, (3017), 606 states have call predecessors, (3017), 595 states have return successors, (3023), 2976 states have call predecessors, (3023), 3013 states have call successors, (3023) [2023-12-02 12:32:28,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8910 states to 8910 states and 12767 transitions. [2023-12-02 12:32:28,594 INFO L78 Accepts]: Start accepts. Automaton has 8910 states and 12767 transitions. Word has length 161 [2023-12-02 12:32:28,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:32:28,595 INFO L495 AbstractCegarLoop]: Abstraction has 8910 states and 12767 transitions. [2023-12-02 12:32:28,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-02 12:32:28,595 INFO L276 IsEmpty]: Start isEmpty. Operand 8910 states and 12767 transitions. [2023-12-02 12:32:28,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-02 12:32:28,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:32:28,600 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:32:28,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 12:32:28,600 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:32:28,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:32:28,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1145886434, now seen corresponding path program 1 times [2023-12-02 12:32:28,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:32:28,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551518357] [2023-12-02 12:32:28,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:28,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:32:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:28,988 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2023-12-02 12:32:28,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:32:28,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551518357] [2023-12-02 12:32:28,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551518357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:32:28,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:32:28,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:32:28,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906809545] [2023-12-02 12:32:28,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:32:28,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:32:28,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:32:28,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:32:28,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:32:28,992 INFO L87 Difference]: Start difference. First operand 8910 states and 12767 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-02 12:32:31,380 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 [] [2023-12-02 12:32:33,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:36,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:38,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:41,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:44,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:46,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:47,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:32:47,034 INFO L93 Difference]: Finished difference Result 26574 states and 38137 transitions. [2023-12-02 12:32:47,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:32:47,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 174 [2023-12-02 12:32:47,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:32:47,145 INFO L225 Difference]: With dead ends: 26574 [2023-12-02 12:32:47,145 INFO L226 Difference]: Without dead ends: 17693 [2023-12-02 12:32:47,187 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 [2023-12-02 12:32:47,188 INFO L413 NwaCegarLoop]: 3078 mSDtfsCounter, 3265 mSDsluCounter, 2863 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 5 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3265 SdHoareTripleChecker+Valid, 5941 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2023-12-02 12:32:47,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3265 Valid, 5941 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 875 Invalid, 7 Unknown, 0 Unchecked, 17.5s Time] [2023-12-02 12:32:47,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17693 states. [2023-12-02 12:32:47,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17693 to 17654. [2023-12-02 12:32:47,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17654 states, 10514 states have (on average 1.2713524824044131) internal successors, (13367), 10697 states have internal predecessors, (13367), 5959 states have call successors, (5959), 1206 states have call predecessors, (5959), 1177 states have return successors, (6025), 5854 states have call predecessors, (6025), 5955 states have call successors, (6025) [2023-12-02 12:32:47,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17654 states to 17654 states and 25351 transitions. [2023-12-02 12:32:47,964 INFO L78 Accepts]: Start accepts. Automaton has 17654 states and 25351 transitions. Word has length 174 [2023-12-02 12:32:47,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:32:47,965 INFO L495 AbstractCegarLoop]: Abstraction has 17654 states and 25351 transitions. [2023-12-02 12:32:47,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-02 12:32:47,966 INFO L276 IsEmpty]: Start isEmpty. Operand 17654 states and 25351 transitions. [2023-12-02 12:32:47,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-02 12:32:47,971 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:32:47,971 INFO L195 NwaCegarLoop]: trace histogram [16, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:32:47,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 12:32:47,972 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:32:47,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:32:47,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1396464208, now seen corresponding path program 1 times [2023-12-02 12:32:47,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:32:47,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755696926] [2023-12-02 12:32:47,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:47,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:32:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:48,382 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2023-12-02 12:32:48,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:32:48,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755696926] [2023-12-02 12:32:48,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755696926] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:32:48,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:32:48,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:32:48,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897386840] [2023-12-02 12:32:48,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:32:48,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:32:48,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:32:48,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:32:48,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:32:48,385 INFO L87 Difference]: Start difference. First operand 17654 states and 25351 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-02 12:32:50,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:52,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:55,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:57,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:32:59,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:33:03,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:33:06,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:33:08,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:33:08,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:33:08,899 INFO L93 Difference]: Finished difference Result 39879 states and 57242 transitions. [2023-12-02 12:33:08,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:33:08,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 179 [2023-12-02 12:33:08,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:33:08,976 INFO L225 Difference]: With dead ends: 39879 [2023-12-02 12:33:08,976 INFO L226 Difference]: Without dead ends: 22254 [2023-12-02 12:33:09,032 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 [2023-12-02 12:33:09,033 INFO L413 NwaCegarLoop]: 2938 mSDtfsCounter, 3267 mSDsluCounter, 2901 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3267 SdHoareTripleChecker+Valid, 5839 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2023-12-02 12:33:09,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3267 Valid, 5839 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 845 Invalid, 8 Unknown, 0 Unchecked, 19.8s Time] [2023-12-02 12:33:09,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22254 states. [2023-12-02 12:33:10,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22254 to 22215. [2023-12-02 12:33:10,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22215 states, 13211 states have (on average 1.270683521308001) internal successors, (16787), 13451 states have internal predecessors, (16787), 7504 states have call successors, (7504), 1528 states have call predecessors, (7504), 1496 states have return successors, (7581), 7369 states have call predecessors, (7581), 7500 states have call successors, (7581) [2023-12-02 12:33:10,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22215 states to 22215 states and 31872 transitions. [2023-12-02 12:33:10,210 INFO L78 Accepts]: Start accepts. Automaton has 22215 states and 31872 transitions. Word has length 179 [2023-12-02 12:33:10,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:33:10,211 INFO L495 AbstractCegarLoop]: Abstraction has 22215 states and 31872 transitions. [2023-12-02 12:33:10,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-02 12:33:10,211 INFO L276 IsEmpty]: Start isEmpty. Operand 22215 states and 31872 transitions. [2023-12-02 12:33:10,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-02 12:33:10,216 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:33:10,216 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:33:10,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 12:33:10,217 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:33:10,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:33:10,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1975263312, now seen corresponding path program 1 times [2023-12-02 12:33:10,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:33:10,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305431922] [2023-12-02 12:33:10,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:10,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:33:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:10,456 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2023-12-02 12:33:10,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:33:10,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305431922] [2023-12-02 12:33:10,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305431922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:33:10,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:33:10,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:33:10,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86748374] [2023-12-02 12:33:10,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:33:10,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:33:10,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:33:10,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:33:10,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:33:10,458 INFO L87 Difference]: Start difference. First operand 22215 states and 31872 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-02 12:33:13,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:33:16,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:33:18,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:33:22,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:33:24,565 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 [] [2023-12-02 12:33:25,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:33:25,257 INFO L93 Difference]: Finished difference Result 59156 states and 84500 transitions. [2023-12-02 12:33:25,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:33:25,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 183 [2023-12-02 12:33:25,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:33:25,442 INFO L225 Difference]: With dead ends: 59156 [2023-12-02 12:33:25,442 INFO L226 Difference]: Without dead ends: 36970 [2023-12-02 12:33:25,497 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 [2023-12-02 12:33:25,498 INFO L413 NwaCegarLoop]: 2912 mSDtfsCounter, 2279 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2279 SdHoareTripleChecker+Valid, 5749 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:33:25,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2279 Valid, 5749 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 894 Invalid, 5 Unknown, 0 Unchecked, 13.6s Time] [2023-12-02 12:33:25,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36970 states. [2023-12-02 12:33:27,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36970 to 36928. [2023-12-02 12:33:27,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36928 states, 21894 states have (on average 1.2619439115739473) internal successors, (27629), 22315 states have internal predecessors, (27629), 12392 states have call successors, (12392), 2704 states have call predecessors, (12392), 2638 states have return successors, (12546), 12115 states have call predecessors, (12546), 12388 states have call successors, (12546) [2023-12-02 12:33:27,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36928 states to 36928 states and 52567 transitions. [2023-12-02 12:33:27,366 INFO L78 Accepts]: Start accepts. Automaton has 36928 states and 52567 transitions. Word has length 183 [2023-12-02 12:33:27,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:33:27,367 INFO L495 AbstractCegarLoop]: Abstraction has 36928 states and 52567 transitions. [2023-12-02 12:33:27,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-02 12:33:27,367 INFO L276 IsEmpty]: Start isEmpty. Operand 36928 states and 52567 transitions. [2023-12-02 12:33:27,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-02 12:33:27,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:33:27,371 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:33:27,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 12:33:27,371 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:33:27,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:33:27,371 INFO L85 PathProgramCache]: Analyzing trace with hash -480783453, now seen corresponding path program 1 times [2023-12-02 12:33:27,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:33:27,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378649885] [2023-12-02 12:33:27,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:27,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:33:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:28,141 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 879 trivial. 0 not checked. [2023-12-02 12:33:28,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:33:28,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378649885] [2023-12-02 12:33:28,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378649885] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:33:28,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:33:28,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:33:28,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463309171] [2023-12-02 12:33:28,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:33:28,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:33:28,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:33:28,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:33:28,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:33:28,143 INFO L87 Difference]: Start difference. First operand 36928 states and 52567 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 12:33:31,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:33:33,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:33:35,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:33:37,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:33:41,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:33:43,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:33:45,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:33:47,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:33:47,198 INFO L93 Difference]: Finished difference Result 36934 states and 52572 transitions. [2023-12-02 12:33:47,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:33:47,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 203 [2023-12-02 12:33:47,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:33:47,315 INFO L225 Difference]: With dead ends: 36934 [2023-12-02 12:33:47,315 INFO L226 Difference]: Without dead ends: 36932 [2023-12-02 12:33:47,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:33:47,333 INFO L413 NwaCegarLoop]: 2902 mSDtfsCounter, 3265 mSDsluCounter, 5786 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3280 SdHoareTripleChecker+Valid, 8688 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2023-12-02 12:33:47,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3280 Valid, 8688 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1281 Invalid, 6 Unknown, 0 Unchecked, 17.8s Time] [2023-12-02 12:33:47,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36932 states. [2023-12-02 12:33:48,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36932 to 36932. [2023-12-02 12:33:49,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36932 states, 21897 states have (on average 1.2619080239302187) internal successors, (27632), 22318 states have internal predecessors, (27632), 12392 states have call successors, (12392), 2705 states have call predecessors, (12392), 2639 states have return successors, (12546), 12115 states have call predecessors, (12546), 12388 states have call successors, (12546) [2023-12-02 12:33:49,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36932 states to 36932 states and 52570 transitions. [2023-12-02 12:33:49,153 INFO L78 Accepts]: Start accepts. Automaton has 36932 states and 52570 transitions. Word has length 203 [2023-12-02 12:33:49,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:33:49,154 INFO L495 AbstractCegarLoop]: Abstraction has 36932 states and 52570 transitions. [2023-12-02 12:33:49,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 12:33:49,154 INFO L276 IsEmpty]: Start isEmpty. Operand 36932 states and 52570 transitions. [2023-12-02 12:33:49,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-02 12:33:49,158 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:33:49,158 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:33:49,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 12:33:49,159 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:33:49,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:33:49,159 INFO L85 PathProgramCache]: Analyzing trace with hash -2055090337, now seen corresponding path program 1 times [2023-12-02 12:33:49,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:33:49,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286931918] [2023-12-02 12:33:49,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:49,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:33:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:49,815 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2023-12-02 12:33:49,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:33:49,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286931918] [2023-12-02 12:33:49,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286931918] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:33:49,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:33:49,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:33:49,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533711912] [2023-12-02 12:33:49,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:33:49,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:33:49,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:33:49,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:33:49,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:33:49,818 INFO L87 Difference]: Start difference. First operand 36932 states and 52570 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-02 12:33:54,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:33:56,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:33:58,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:01,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:03,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:04,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:06,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:34:06,108 INFO L93 Difference]: Finished difference Result 36938 states and 52575 transitions. [2023-12-02 12:34:06,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:34:06,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 212 [2023-12-02 12:34:06,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:34:06,217 INFO L225 Difference]: With dead ends: 36938 [2023-12-02 12:34:06,217 INFO L226 Difference]: Without dead ends: 36936 [2023-12-02 12:34:06,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:34:06,233 INFO L413 NwaCegarLoop]: 2905 mSDtfsCounter, 3259 mSDsluCounter, 5786 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3273 SdHoareTripleChecker+Valid, 8691 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:34:06,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3273 Valid, 8691 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1283 Invalid, 4 Unknown, 0 Unchecked, 15.0s Time] [2023-12-02 12:34:06,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36936 states. [2023-12-02 12:34:08,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36936 to 36936. [2023-12-02 12:34:08,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36936 states, 21900 states have (on average 1.2618721461187214) internal successors, (27635), 22321 states have internal predecessors, (27635), 12392 states have call successors, (12392), 2706 states have call predecessors, (12392), 2640 states have return successors, (12546), 12115 states have call predecessors, (12546), 12388 states have call successors, (12546) [2023-12-02 12:34:08,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36936 states to 36936 states and 52573 transitions. [2023-12-02 12:34:08,185 INFO L78 Accepts]: Start accepts. Automaton has 36936 states and 52573 transitions. Word has length 212 [2023-12-02 12:34:08,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:34:08,185 INFO L495 AbstractCegarLoop]: Abstraction has 36936 states and 52573 transitions. [2023-12-02 12:34:08,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-02 12:34:08,185 INFO L276 IsEmpty]: Start isEmpty. Operand 36936 states and 52573 transitions. [2023-12-02 12:34:08,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-12-02 12:34:08,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:34:08,190 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:34:08,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 12:34:08,191 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:34:08,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:34:08,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1346682860, now seen corresponding path program 1 times [2023-12-02 12:34:08,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:34:08,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174131519] [2023-12-02 12:34:08,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:34:08,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:34:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:34:08,792 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked. [2023-12-02 12:34:08,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:34:08,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174131519] [2023-12-02 12:34:08,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174131519] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:34:08,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:34:08,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:34:08,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663275790] [2023-12-02 12:34:08,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:34:08,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:34:08,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:34:08,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:34:08,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:34:08,795 INFO L87 Difference]: Start difference. First operand 36936 states and 52573 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-02 12:34:13,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:15,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:17,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:21,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:23,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:25,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:26,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:34:26,686 INFO L93 Difference]: Finished difference Result 36942 states and 52578 transitions. [2023-12-02 12:34:26,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:34:26,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 216 [2023-12-02 12:34:26,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:34:26,806 INFO L225 Difference]: With dead ends: 36942 [2023-12-02 12:34:26,806 INFO L226 Difference]: Without dead ends: 36940 [2023-12-02 12:34:26,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:34:26,825 INFO L413 NwaCegarLoop]: 2905 mSDtfsCounter, 3259 mSDsluCounter, 5786 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3272 SdHoareTripleChecker+Valid, 8691 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2023-12-02 12:34:26,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3272 Valid, 8691 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1282 Invalid, 5 Unknown, 0 Unchecked, 16.3s Time] [2023-12-02 12:34:26,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36940 states. [2023-12-02 12:34:28,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36940 to 36940. [2023-12-02 12:34:28,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36940 states, 21903 states have (on average 1.2618362781354153) internal successors, (27638), 22324 states have internal predecessors, (27638), 12392 states have call successors, (12392), 2707 states have call predecessors, (12392), 2641 states have return successors, (12546), 12115 states have call predecessors, (12546), 12388 states have call successors, (12546) [2023-12-02 12:34:28,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36940 states to 36940 states and 52576 transitions. [2023-12-02 12:34:28,727 INFO L78 Accepts]: Start accepts. Automaton has 36940 states and 52576 transitions. Word has length 216 [2023-12-02 12:34:28,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:34:28,727 INFO L495 AbstractCegarLoop]: Abstraction has 36940 states and 52576 transitions. [2023-12-02 12:34:28,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-02 12:34:28,727 INFO L276 IsEmpty]: Start isEmpty. Operand 36940 states and 52576 transitions. [2023-12-02 12:34:28,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-02 12:34:28,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:34:28,732 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:34:28,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 12:34:28,732 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:34:28,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:34:28,733 INFO L85 PathProgramCache]: Analyzing trace with hash 283126271, now seen corresponding path program 1 times [2023-12-02 12:34:28,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:34:28,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185224518] [2023-12-02 12:34:28,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:34:28,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:34:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:34:29,251 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 899 trivial. 0 not checked. [2023-12-02 12:34:29,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:34:29,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185224518] [2023-12-02 12:34:29,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185224518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:34:29,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:34:29,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:34:29,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173551878] [2023-12-02 12:34:29,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:34:29,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:34:29,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:34:29,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:34:29,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:34:29,254 INFO L87 Difference]: Start difference. First operand 36940 states and 52576 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 12:34:33,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:35,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:37,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:41,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:43,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:45,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:47,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:34:47,240 INFO L93 Difference]: Finished difference Result 36946 states and 52581 transitions. [2023-12-02 12:34:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:34:47,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 222 [2023-12-02 12:34:47,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:34:47,359 INFO L225 Difference]: With dead ends: 36946 [2023-12-02 12:34:47,359 INFO L226 Difference]: Without dead ends: 36944 [2023-12-02 12:34:47,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:34:47,376 INFO L413 NwaCegarLoop]: 2905 mSDtfsCounter, 3259 mSDsluCounter, 5786 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3271 SdHoareTripleChecker+Valid, 8691 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2023-12-02 12:34:47,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3271 Valid, 8691 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1281 Invalid, 6 Unknown, 0 Unchecked, 16.4s Time] [2023-12-02 12:34:47,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36944 states. [2023-12-02 12:34:49,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36944 to 36944. [2023-12-02 12:34:49,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36944 states, 21906 states have (on average 1.2618004199762622) internal successors, (27641), 22327 states have internal predecessors, (27641), 12392 states have call successors, (12392), 2708 states have call predecessors, (12392), 2642 states have return successors, (12546), 12115 states have call predecessors, (12546), 12388 states have call successors, (12546) [2023-12-02 12:34:49,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36944 states to 36944 states and 52579 transitions. [2023-12-02 12:34:49,420 INFO L78 Accepts]: Start accepts. Automaton has 36944 states and 52579 transitions. Word has length 222 [2023-12-02 12:34:49,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:34:49,421 INFO L495 AbstractCegarLoop]: Abstraction has 36944 states and 52579 transitions. [2023-12-02 12:34:49,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 12:34:49,421 INFO L276 IsEmpty]: Start isEmpty. Operand 36944 states and 52579 transitions. [2023-12-02 12:34:49,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-12-02 12:34:49,426 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:34:49,426 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:34:49,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 12:34:49,426 INFO L420 AbstractCegarLoop]: === Iteration 10 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:34:49,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:34:49,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1273390668, now seen corresponding path program 1 times [2023-12-02 12:34:49,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:34:49,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505083848] [2023-12-02 12:34:49,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:34:49,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:34:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:34:49,918 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2023-12-02 12:34:49,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:34:49,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505083848] [2023-12-02 12:34:49,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505083848] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:34:49,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:34:49,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:34:49,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617751847] [2023-12-02 12:34:49,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:34:49,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:34:49,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:34:49,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:34:49,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:34:49,921 INFO L87 Difference]: Start difference. First operand 36944 states and 52579 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-02 12:34:53,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:55,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:57,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:34:59,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:35:02,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:35:03,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:35:05,618 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 [] [2023-12-02 12:35:07,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:35:07,977 INFO L93 Difference]: Finished difference Result 36950 states and 52584 transitions. [2023-12-02 12:35:07,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:35:07,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 226 [2023-12-02 12:35:07,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:35:08,102 INFO L225 Difference]: With dead ends: 36950 [2023-12-02 12:35:08,103 INFO L226 Difference]: Without dead ends: 36948 [2023-12-02 12:35:08,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:35:08,117 INFO L413 NwaCegarLoop]: 2905 mSDtfsCounter, 3259 mSDsluCounter, 5786 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3270 SdHoareTripleChecker+Valid, 8691 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:35:08,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3270 Valid, 8691 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1282 Invalid, 5 Unknown, 0 Unchecked, 16.1s Time] [2023-12-02 12:35:08,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36948 states. [2023-12-02 12:35:10,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36948 to 36948. [2023-12-02 12:35:10,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36948 states, 21909 states have (on average 1.2617645716372268) internal successors, (27644), 22330 states have internal predecessors, (27644), 12392 states have call successors, (12392), 2709 states have call predecessors, (12392), 2643 states have return successors, (12546), 12115 states have call predecessors, (12546), 12388 states have call successors, (12546) [2023-12-02 12:35:10,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36948 states to 36948 states and 52582 transitions. [2023-12-02 12:35:10,287 INFO L78 Accepts]: Start accepts. Automaton has 36948 states and 52582 transitions. Word has length 226 [2023-12-02 12:35:10,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:35:10,288 INFO L495 AbstractCegarLoop]: Abstraction has 36948 states and 52582 transitions. [2023-12-02 12:35:10,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-02 12:35:10,288 INFO L276 IsEmpty]: Start isEmpty. Operand 36948 states and 52582 transitions. [2023-12-02 12:35:10,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2023-12-02 12:35:10,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:35:10,294 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:35:10,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 12:35:10,295 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:35:10,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:35:10,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1461017798, now seen corresponding path program 1 times [2023-12-02 12:35:10,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:35:10,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981925148] [2023-12-02 12:35:10,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:35:10,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:35:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:35:10,791 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 919 trivial. 0 not checked. [2023-12-02 12:35:10,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:35:10,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981925148] [2023-12-02 12:35:10,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981925148] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:35:10,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:35:10,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:35:10,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219977497] [2023-12-02 12:35:10,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:35:10,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:35:10,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:35:10,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:35:10,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:35:10,794 INFO L87 Difference]: Start difference. First operand 36948 states and 52582 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 12:35:15,109 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 [] [2023-12-02 12:35:17,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:35:19,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:35:22,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:35:24,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:35:26,517 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 [] [2023-12-02 12:35:28,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:35:28,632 INFO L93 Difference]: Finished difference Result 36954 states and 52587 transitions. [2023-12-02 12:35:28,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:35:28,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 228 [2023-12-02 12:35:28,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:35:28,739 INFO L225 Difference]: With dead ends: 36954 [2023-12-02 12:35:28,739 INFO L226 Difference]: Without dead ends: 36952 [2023-12-02 12:35:28,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:35:28,753 INFO L413 NwaCegarLoop]: 2905 mSDtfsCounter, 3260 mSDsluCounter, 5786 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3270 SdHoareTripleChecker+Valid, 8691 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2023-12-02 12:35:28,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3270 Valid, 8691 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1281 Invalid, 6 Unknown, 0 Unchecked, 15.9s Time] [2023-12-02 12:35:28,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36952 states. [2023-12-02 12:35:30,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36952 to 36952. [2023-12-02 12:35:30,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36952 states, 21912 states have (on average 1.2617287331142752) internal successors, (27647), 22333 states have internal predecessors, (27647), 12392 states have call successors, (12392), 2710 states have call predecessors, (12392), 2644 states have return successors, (12546), 12115 states have call predecessors, (12546), 12388 states have call successors, (12546) [2023-12-02 12:35:31,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36952 states to 36952 states and 52585 transitions. [2023-12-02 12:35:31,112 INFO L78 Accepts]: Start accepts. Automaton has 36952 states and 52585 transitions. Word has length 228 [2023-12-02 12:35:31,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:35:31,112 INFO L495 AbstractCegarLoop]: Abstraction has 36952 states and 52585 transitions. [2023-12-02 12:35:31,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 12:35:31,113 INFO L276 IsEmpty]: Start isEmpty. Operand 36952 states and 52585 transitions. [2023-12-02 12:35:31,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-02 12:35:31,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:35:31,118 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 7, 6, 6, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:35:31,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 12:35:31,119 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:35:31,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:35:31,119 INFO L85 PathProgramCache]: Analyzing trace with hash 912606380, now seen corresponding path program 1 times [2023-12-02 12:35:31,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:35:31,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184319352] [2023-12-02 12:35:31,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:35:31,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:35:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:35:31,528 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-12-02 12:35:31,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:35:31,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184319352] [2023-12-02 12:35:31,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184319352] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:35:31,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:35:31,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:35:31,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414170639] [2023-12-02 12:35:31,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:35:31,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:35:31,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:35:31,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:35:31,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:35:31,531 INFO L87 Difference]: Start difference. First operand 36952 states and 52585 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-02 12:35:36,249 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 [] [2023-12-02 12:35:38,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:35:40,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:35:43,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:35:45,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:35:47,964 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 [] [2023-12-02 12:35:50,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:35:50,082 INFO L93 Difference]: Finished difference Result 36958 states and 52590 transitions. [2023-12-02 12:35:50,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:35:50,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 236 [2023-12-02 12:35:50,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:35:50,180 INFO L225 Difference]: With dead ends: 36958 [2023-12-02 12:35:50,180 INFO L226 Difference]: Without dead ends: 36956 [2023-12-02 12:35:50,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:35:50,192 INFO L413 NwaCegarLoop]: 2905 mSDtfsCounter, 3259 mSDsluCounter, 5786 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3268 SdHoareTripleChecker+Valid, 8691 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:35:50,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3268 Valid, 8691 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1281 Invalid, 6 Unknown, 0 Unchecked, 16.2s Time] [2023-12-02 12:35:50,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36956 states. [2023-12-02 12:35:52,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36956 to 36956. [2023-12-02 12:35:52,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36956 states, 21915 states have (on average 1.2616929044033767) internal successors, (27650), 22336 states have internal predecessors, (27650), 12392 states have call successors, (12392), 2711 states have call predecessors, (12392), 2645 states have return successors, (12546), 12115 states have call predecessors, (12546), 12388 states have call successors, (12546) [2023-12-02 12:35:52,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36956 states to 36956 states and 52588 transitions. [2023-12-02 12:35:52,707 INFO L78 Accepts]: Start accepts. Automaton has 36956 states and 52588 transitions. Word has length 236 [2023-12-02 12:35:52,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:35:52,708 INFO L495 AbstractCegarLoop]: Abstraction has 36956 states and 52588 transitions. [2023-12-02 12:35:52,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-02 12:35:52,708 INFO L276 IsEmpty]: Start isEmpty. Operand 36956 states and 52588 transitions. [2023-12-02 12:35:52,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-12-02 12:35:52,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:35:52,714 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 8, 7, 7, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:35:52,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 12:35:52,714 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:35:52,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:35:52,715 INFO L85 PathProgramCache]: Analyzing trace with hash -762219491, now seen corresponding path program 1 times [2023-12-02 12:35:52,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:35:52,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588202616] [2023-12-02 12:35:52,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:35:52,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:35:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:35:53,064 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2023-12-02 12:35:53,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:35:53,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588202616] [2023-12-02 12:35:53,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588202616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:35:53,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:35:53,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:35:53,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438331727] [2023-12-02 12:35:53,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:35:53,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:35:53,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:35:53,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:35:53,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:35:53,066 INFO L87 Difference]: Start difference. First operand 36956 states and 52588 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-02 12:35:57,796 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 [] [2023-12-02 12:35:59,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:01,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:05,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:07,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:09,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:11,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:13,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:15,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:17,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:36:17,422 INFO L93 Difference]: Finished difference Result 36962 states and 52593 transitions. [2023-12-02 12:36:17,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:36:17,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 241 [2023-12-02 12:36:17,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:36:17,524 INFO L225 Difference]: With dead ends: 36962 [2023-12-02 12:36:17,524 INFO L226 Difference]: Without dead ends: 36960 [2023-12-02 12:36:17,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:36:17,536 INFO L413 NwaCegarLoop]: 2905 mSDtfsCounter, 3259 mSDsluCounter, 5786 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3267 SdHoareTripleChecker+Valid, 8691 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:36:17,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3267 Valid, 8691 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1279 Invalid, 8 Unknown, 0 Unchecked, 22.1s Time] [2023-12-02 12:36:17,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36960 states. [2023-12-02 12:36:20,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36960 to 36960. [2023-12-02 12:36:20,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36960 states, 21918 states have (on average 1.2616570855005018) internal successors, (27653), 22339 states have internal predecessors, (27653), 12392 states have call successors, (12392), 2712 states have call predecessors, (12392), 2646 states have return successors, (12546), 12115 states have call predecessors, (12546), 12388 states have call successors, (12546) [2023-12-02 12:36:20,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36960 states to 36960 states and 52591 transitions. [2023-12-02 12:36:20,163 INFO L78 Accepts]: Start accepts. Automaton has 36960 states and 52591 transitions. Word has length 241 [2023-12-02 12:36:20,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:36:20,163 INFO L495 AbstractCegarLoop]: Abstraction has 36960 states and 52591 transitions. [2023-12-02 12:36:20,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-02 12:36:20,164 INFO L276 IsEmpty]: Start isEmpty. Operand 36960 states and 52591 transitions. [2023-12-02 12:36:20,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-02 12:36:20,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:36:20,171 INFO L195 NwaCegarLoop]: trace histogram [20, 14, 14, 14, 14, 14, 14, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:36:20,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 12:36:20,171 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:36:20,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:36:20,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1941356911, now seen corresponding path program 1 times [2023-12-02 12:36:20,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:36:20,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45570479] [2023-12-02 12:36:20,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:36:20,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:36:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:36:20,676 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2023-12-02 12:36:20,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:36:20,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45570479] [2023-12-02 12:36:20,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45570479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:36:20,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:36:20,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:36:20,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991265648] [2023-12-02 12:36:20,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:36:20,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:36:20,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:36:20,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:36:20,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:36:20,678 INFO L87 Difference]: Start difference. First operand 36960 states and 52591 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-02 12:36:25,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:27,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:29,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:32,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:34,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:36,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:38,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:40,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:36:40,633 INFO L93 Difference]: Finished difference Result 37610 states and 53308 transitions. [2023-12-02 12:36:40,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 12:36:40,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 236 [2023-12-02 12:36:40,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:36:40,744 INFO L225 Difference]: With dead ends: 37610 [2023-12-02 12:36:40,744 INFO L226 Difference]: Without dead ends: 37608 [2023-12-02 12:36:40,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 12:36:40,759 INFO L413 NwaCegarLoop]: 2903 mSDtfsCounter, 3194 mSDsluCounter, 5895 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3195 SdHoareTripleChecker+Valid, 8798 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2023-12-02 12:36:40,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3195 Valid, 8798 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1296 Invalid, 6 Unknown, 0 Unchecked, 17.3s Time] [2023-12-02 12:36:40,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37608 states. [2023-12-02 12:36:43,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37608 to 37606. [2023-12-02 12:36:43,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37606 states, 22319 states have (on average 1.2603163224158789) internal successors, (28129), 22739 states have internal predecessors, (28129), 12503 states have call successors, (12503), 2847 states have call predecessors, (12503), 2781 states have return successors, (12657), 12226 states have call predecessors, (12657), 12499 states have call successors, (12657) [2023-12-02 12:36:43,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37606 states to 37606 states and 53289 transitions. [2023-12-02 12:36:43,591 INFO L78 Accepts]: Start accepts. Automaton has 37606 states and 53289 transitions. Word has length 236 [2023-12-02 12:36:43,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:36:43,591 INFO L495 AbstractCegarLoop]: Abstraction has 37606 states and 53289 transitions. [2023-12-02 12:36:43,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-02 12:36:43,592 INFO L276 IsEmpty]: Start isEmpty. Operand 37606 states and 53289 transitions. [2023-12-02 12:36:43,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-02 12:36:43,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:36:43,599 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 9, 8, 8, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:36:43,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 12:36:43,600 INFO L420 AbstractCegarLoop]: === Iteration 15 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:36:43,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:36:43,600 INFO L85 PathProgramCache]: Analyzing trace with hash -426026228, now seen corresponding path program 1 times [2023-12-02 12:36:43,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:36:43,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099466109] [2023-12-02 12:36:43,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:36:43,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:36:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:36:44,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1014 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 998 trivial. 0 not checked. [2023-12-02 12:36:44,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:36:44,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099466109] [2023-12-02 12:36:44,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099466109] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:36:44,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:36:44,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:36:44,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739458516] [2023-12-02 12:36:44,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:36:44,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:36:44,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:36:44,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:36:44,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:36:44,105 INFO L87 Difference]: Start difference. First operand 37606 states and 53289 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-02 12:36:48,856 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 [] [2023-12-02 12:36:50,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:52,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:56,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:36:58,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:37:00,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:37:02,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:37:05,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:37:05,220 INFO L93 Difference]: Finished difference Result 37614 states and 53295 transitions. [2023-12-02 12:37:05,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:37:05,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 246 [2023-12-02 12:37:05,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:37:05,325 INFO L225 Difference]: With dead ends: 37614 [2023-12-02 12:37:05,325 INFO L226 Difference]: Without dead ends: 37612 [2023-12-02 12:37:05,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:37:05,338 INFO L413 NwaCegarLoop]: 2906 mSDtfsCounter, 3195 mSDsluCounter, 5881 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3202 SdHoareTripleChecker+Valid, 8787 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:37:05,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3202 Valid, 8787 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1314 Invalid, 6 Unknown, 0 Unchecked, 18.6s Time] [2023-12-02 12:37:05,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37612 states. [2023-12-02 12:37:08,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37612 to 37610. [2023-12-02 12:37:08,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37610 states, 22322 states have (on average 1.2602813367977779) internal successors, (28132), 22742 states have internal predecessors, (28132), 12503 states have call successors, (12503), 2848 states have call predecessors, (12503), 2782 states have return successors, (12657), 12226 states have call predecessors, (12657), 12499 states have call successors, (12657) [2023-12-02 12:37:08,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37610 states to 37610 states and 53292 transitions. [2023-12-02 12:37:08,245 INFO L78 Accepts]: Start accepts. Automaton has 37610 states and 53292 transitions. Word has length 246 [2023-12-02 12:37:08,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:37:08,246 INFO L495 AbstractCegarLoop]: Abstraction has 37610 states and 53292 transitions. [2023-12-02 12:37:08,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-02 12:37:08,246 INFO L276 IsEmpty]: Start isEmpty. Operand 37610 states and 53292 transitions. [2023-12-02 12:37:08,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-02 12:37:08,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:37:08,254 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 10, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:37:08,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-02 12:37:08,254 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:37:08,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:37:08,254 INFO L85 PathProgramCache]: Analyzing trace with hash 2128347270, now seen corresponding path program 1 times [2023-12-02 12:37:08,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:37:08,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276664693] [2023-12-02 12:37:08,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:37:08,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:37:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:37:08,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1023 trivial. 0 not checked. [2023-12-02 12:37:08,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:37:08,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276664693] [2023-12-02 12:37:08,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276664693] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:37:08,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:37:08,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:37:08,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989886725] [2023-12-02 12:37:08,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:37:08,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:37:08,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:37:08,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:37:08,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:37:08,590 INFO L87 Difference]: Start difference. First operand 37610 states and 53292 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-02 12:37:13,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:37:15,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:37:17,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:37:21,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:37:23,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:37:24,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:37:27,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:37:27,536 INFO L93 Difference]: Finished difference Result 37616 states and 53297 transitions. [2023-12-02 12:37:27,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:37:27,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 248 [2023-12-02 12:37:27,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:37:27,652 INFO L225 Difference]: With dead ends: 37616 [2023-12-02 12:37:27,652 INFO L226 Difference]: Without dead ends: 37614 [2023-12-02 12:37:27,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:37:27,665 INFO L413 NwaCegarLoop]: 2903 mSDtfsCounter, 3258 mSDsluCounter, 5782 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3264 SdHoareTripleChecker+Valid, 8685 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:37:27,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3264 Valid, 8685 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1282 Invalid, 5 Unknown, 0 Unchecked, 16.2s Time] [2023-12-02 12:37:27,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37614 states. [2023-12-02 12:37:30,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37614 to 37614. [2023-12-02 12:37:30,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37614 states, 22325 states have (on average 1.2602463605823069) internal successors, (28135), 22745 states have internal predecessors, (28135), 12503 states have call successors, (12503), 2849 states have call predecessors, (12503), 2783 states have return successors, (12657), 12226 states have call predecessors, (12657), 12499 states have call successors, (12657) [2023-12-02 12:37:31,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37614 states to 37614 states and 53295 transitions. [2023-12-02 12:37:31,054 INFO L78 Accepts]: Start accepts. Automaton has 37614 states and 53295 transitions. Word has length 248 [2023-12-02 12:37:31,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:37:31,055 INFO L495 AbstractCegarLoop]: Abstraction has 37614 states and 53295 transitions. [2023-12-02 12:37:31,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-02 12:37:31,055 INFO L276 IsEmpty]: Start isEmpty. Operand 37614 states and 53295 transitions. [2023-12-02 12:37:31,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-02 12:37:31,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:37:31,068 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 11, 10, 10, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:37:31,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-02 12:37:31,068 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:37:31,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:37:31,069 INFO L85 PathProgramCache]: Analyzing trace with hash -354244244, now seen corresponding path program 1 times [2023-12-02 12:37:31,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:37:31,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601475373] [2023-12-02 12:37:31,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:37:31,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:37:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:37:31,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1086 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1066 trivial. 0 not checked. [2023-12-02 12:37:31,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:37:31,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601475373] [2023-12-02 12:37:31,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601475373] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:37:31,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:37:31,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:37:31,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220137559] [2023-12-02 12:37:31,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:37:31,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:37:31,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:37:31,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:37:31,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:37:31,579 INFO L87 Difference]: Start difference. First operand 37614 states and 53295 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-02 12:37:36,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:37:38,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:37:40,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:37:44,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:37:45,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:37:47,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:37:50,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:37:52,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:37:54,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:37:54,305 INFO L93 Difference]: Finished difference Result 37620 states and 53300 transitions. [2023-12-02 12:37:54,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:37:54,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 256 [2023-12-02 12:37:54,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:37:54,413 INFO L225 Difference]: With dead ends: 37620 [2023-12-02 12:37:54,413 INFO L226 Difference]: Without dead ends: 37618 [2023-12-02 12:37:54,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:37:54,430 INFO L413 NwaCegarLoop]: 2903 mSDtfsCounter, 3257 mSDsluCounter, 5782 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3262 SdHoareTripleChecker+Valid, 8685 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:37:54,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3262 Valid, 8685 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1281 Invalid, 6 Unknown, 0 Unchecked, 19.6s Time] [2023-12-02 12:37:54,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37618 states. [2023-12-02 12:37:57,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37618 to 37618. [2023-12-02 12:37:57,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37618 states, 22328 states have (on average 1.2602113937656754) internal successors, (28138), 22748 states have internal predecessors, (28138), 12503 states have call successors, (12503), 2850 states have call predecessors, (12503), 2784 states have return successors, (12657), 12226 states have call predecessors, (12657), 12499 states have call successors, (12657) [2023-12-02 12:37:57,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37618 states to 37618 states and 53298 transitions. [2023-12-02 12:37:57,598 INFO L78 Accepts]: Start accepts. Automaton has 37618 states and 53298 transitions. Word has length 256 [2023-12-02 12:37:57,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:37:57,598 INFO L495 AbstractCegarLoop]: Abstraction has 37618 states and 53298 transitions. [2023-12-02 12:37:57,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-02 12:37:57,598 INFO L276 IsEmpty]: Start isEmpty. Operand 37618 states and 53298 transitions. [2023-12-02 12:37:57,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-12-02 12:37:57,607 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:37:57,608 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 12, 11, 11, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:37:57,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 12:37:57,608 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:37:57,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:37:57,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1174316159, now seen corresponding path program 1 times [2023-12-02 12:37:57,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:37:57,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121861615] [2023-12-02 12:37:57,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:37:57,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:37:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:37:57,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1107 trivial. 0 not checked. [2023-12-02 12:37:57,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:37:57,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121861615] [2023-12-02 12:37:57,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121861615] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:37:57,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:37:57,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:37:57,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278106847] [2023-12-02 12:37:57,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:37:57,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:37:57,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:37:57,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:37:57,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:37:57,930 INFO L87 Difference]: Start difference. First operand 37618 states and 53298 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 12:38:02,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:38:04,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:38:06,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:38:10,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:38:12,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:38:14,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:38:17,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:38:17,832 INFO L93 Difference]: Finished difference Result 37624 states and 53303 transitions. [2023-12-02 12:38:17,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:38:17,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 262 [2023-12-02 12:38:17,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:38:17,946 INFO L225 Difference]: With dead ends: 37624 [2023-12-02 12:38:17,946 INFO L226 Difference]: Without dead ends: 37622 [2023-12-02 12:38:17,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:38:17,961 INFO L413 NwaCegarLoop]: 2903 mSDtfsCounter, 3257 mSDsluCounter, 5782 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3261 SdHoareTripleChecker+Valid, 8685 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:38:17,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3261 Valid, 8685 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1281 Invalid, 6 Unknown, 0 Unchecked, 17.0s Time] [2023-12-02 12:38:17,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37622 states. [2023-12-02 12:38:21,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37622 to 37622. [2023-12-02 12:38:21,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37622 states, 22331 states have (on average 1.2601764363440957) internal successors, (28141), 22751 states have internal predecessors, (28141), 12503 states have call successors, (12503), 2851 states have call predecessors, (12503), 2785 states have return successors, (12657), 12226 states have call predecessors, (12657), 12499 states have call successors, (12657) [2023-12-02 12:38:21,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37622 states to 37622 states and 53301 transitions. [2023-12-02 12:38:21,277 INFO L78 Accepts]: Start accepts. Automaton has 37622 states and 53301 transitions. Word has length 262 [2023-12-02 12:38:21,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:38:21,278 INFO L495 AbstractCegarLoop]: Abstraction has 37622 states and 53301 transitions. [2023-12-02 12:38:21,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 12:38:21,278 INFO L276 IsEmpty]: Start isEmpty. Operand 37622 states and 53301 transitions. [2023-12-02 12:38:21,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2023-12-02 12:38:21,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:38:21,289 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 13, 12, 12, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:38:21,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-02 12:38:21,289 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:38:21,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:38:21,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1020861795, now seen corresponding path program 1 times [2023-12-02 12:38:21,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:38:21,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758282078] [2023-12-02 12:38:21,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:38:21,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:38:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:38:21,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1167 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1143 trivial. 0 not checked. [2023-12-02 12:38:21,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:38:21,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758282078] [2023-12-02 12:38:21,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758282078] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:38:21,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:38:21,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:38:21,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434958329] [2023-12-02 12:38:21,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:38:21,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:38:21,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:38:21,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:38:21,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:38:21,601 INFO L87 Difference]: Start difference. First operand 37622 states and 53301 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-02 12:38:24,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:38:27,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:38:29,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:38:31,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:38:34,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:38:36,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:38:37,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:38:40,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:38:40,763 INFO L93 Difference]: Finished difference Result 37628 states and 53306 transitions. [2023-12-02 12:38:40,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:38:40,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 263 [2023-12-02 12:38:40,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:38:40,867 INFO L225 Difference]: With dead ends: 37628 [2023-12-02 12:38:40,867 INFO L226 Difference]: Without dead ends: 37626 [2023-12-02 12:38:40,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:38:40,882 INFO L413 NwaCegarLoop]: 2903 mSDtfsCounter, 3258 mSDsluCounter, 5782 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3261 SdHoareTripleChecker+Valid, 8685 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2023-12-02 12:38:40,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3261 Valid, 8685 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1282 Invalid, 5 Unknown, 0 Unchecked, 15.9s Time] [2023-12-02 12:38:40,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37626 states. [2023-12-02 12:38:44,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37626 to 37626. [2023-12-02 12:38:44,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37626 states, 22334 states have (on average 1.2601414883137816) internal successors, (28144), 22754 states have internal predecessors, (28144), 12503 states have call successors, (12503), 2852 states have call predecessors, (12503), 2786 states have return successors, (12657), 12226 states have call predecessors, (12657), 12499 states have call successors, (12657) [2023-12-02 12:38:44,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37626 states to 37626 states and 53304 transitions. [2023-12-02 12:38:44,388 INFO L78 Accepts]: Start accepts. Automaton has 37626 states and 53304 transitions. Word has length 263 [2023-12-02 12:38:44,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:38:44,388 INFO L495 AbstractCegarLoop]: Abstraction has 37626 states and 53304 transitions. [2023-12-02 12:38:44,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-02 12:38:44,389 INFO L276 IsEmpty]: Start isEmpty. Operand 37626 states and 53304 transitions. [2023-12-02 12:38:44,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2023-12-02 12:38:44,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:38:44,400 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 14, 13, 13, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:38:44,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-02 12:38:44,401 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:38:44,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:38:44,401 INFO L85 PathProgramCache]: Analyzing trace with hash -135952609, now seen corresponding path program 1 times [2023-12-02 12:38:44,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:38:44,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125017592] [2023-12-02 12:38:44,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:38:44,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:38:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:38:44,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2023-12-02 12:38:44,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:38:44,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125017592] [2023-12-02 12:38:44,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125017592] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:38:44,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:38:44,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:38:44,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438676887] [2023-12-02 12:38:44,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:38:44,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:38:44,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:38:44,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:38:44,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:38:44,709 INFO L87 Difference]: Start difference. First operand 37626 states and 53304 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-02 12:38:48,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:38:50,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:38:52,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:38:54,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:38:58,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:39:00,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:39:02,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:39:05,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:39:08,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:39:08,021 INFO L93 Difference]: Finished difference Result 37632 states and 53309 transitions. [2023-12-02 12:39:08,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:39:08,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 272 [2023-12-02 12:39:08,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:39:08,114 INFO L225 Difference]: With dead ends: 37632 [2023-12-02 12:39:08,114 INFO L226 Difference]: Without dead ends: 37630 [2023-12-02 12:39:08,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:39:08,125 INFO L413 NwaCegarLoop]: 2903 mSDtfsCounter, 3257 mSDsluCounter, 5782 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3259 SdHoareTripleChecker+Valid, 8685 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:39:08,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3259 Valid, 8685 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1280 Invalid, 7 Unknown, 0 Unchecked, 19.6s Time] [2023-12-02 12:39:08,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37630 states. [2023-12-02 12:39:11,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37630 to 37630. [2023-12-02 12:39:11,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37630 states, 22337 states have (on average 1.2601065496709496) internal successors, (28147), 22757 states have internal predecessors, (28147), 12503 states have call successors, (12503), 2853 states have call predecessors, (12503), 2787 states have return successors, (12657), 12226 states have call predecessors, (12657), 12499 states have call successors, (12657) [2023-12-02 12:39:11,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37630 states to 37630 states and 53307 transitions. [2023-12-02 12:39:11,980 INFO L78 Accepts]: Start accepts. Automaton has 37630 states and 53307 transitions. Word has length 272 [2023-12-02 12:39:11,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:39:11,980 INFO L495 AbstractCegarLoop]: Abstraction has 37630 states and 53307 transitions. [2023-12-02 12:39:11,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-02 12:39:11,980 INFO L276 IsEmpty]: Start isEmpty. Operand 37630 states and 53307 transitions. [2023-12-02 12:39:11,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-12-02 12:39:11,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:39:11,991 INFO L195 NwaCegarLoop]: trace histogram [20, 14, 14, 14, 14, 14, 14, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:39:11,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-02 12:39:11,991 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:39:11,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:39:11,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1062872469, now seen corresponding path program 1 times [2023-12-02 12:39:11,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:39:11,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734610769] [2023-12-02 12:39:11,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:39:11,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:39:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:39:12,280 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 998 trivial. 0 not checked. [2023-12-02 12:39:12,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:39:12,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734610769] [2023-12-02 12:39:12,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734610769] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:39:12,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:39:12,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:39:12,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481352211] [2023-12-02 12:39:12,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:39:12,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:39:12,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:39:12,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:39:12,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:39:12,282 INFO L87 Difference]: Start difference. First operand 37630 states and 53307 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2023-12-02 12:39:16,304 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 [] [2023-12-02 12:39:18,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:39:21,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:39:23,522 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 [] [2023-12-02 12:39:26,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:39:26,975 INFO L93 Difference]: Finished difference Result 75503 states and 108341 transitions. [2023-12-02 12:39:26,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:39:26,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) Word has length 270 [2023-12-02 12:39:26,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:39:27,110 INFO L225 Difference]: With dead ends: 75503 [2023-12-02 12:39:27,110 INFO L226 Difference]: Without dead ends: 37902 [2023-12-02 12:39:27,219 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 [2023-12-02 12:39:27,220 INFO L413 NwaCegarLoop]: 2901 mSDtfsCounter, 5 mSDsluCounter, 2899 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5800 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-12-02 12:39:27,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5800 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 843 Invalid, 4 Unknown, 0 Unchecked, 10.7s Time] [2023-12-02 12:39:27,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37902 states. [2023-12-02 12:39:31,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37902 to 37664. [2023-12-02 12:39:31,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37664 states, 22371 states have (on average 1.2597112332931026) internal successors, (28181), 22791 states have internal predecessors, (28181), 12503 states have call successors, (12503), 2853 states have call predecessors, (12503), 2787 states have return successors, (12657), 12226 states have call predecessors, (12657), 12499 states have call successors, (12657) [2023-12-02 12:39:31,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37664 states to 37664 states and 53341 transitions. [2023-12-02 12:39:31,284 INFO L78 Accepts]: Start accepts. Automaton has 37664 states and 53341 transitions. Word has length 270 [2023-12-02 12:39:31,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:39:31,284 INFO L495 AbstractCegarLoop]: Abstraction has 37664 states and 53341 transitions. [2023-12-02 12:39:31,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2023-12-02 12:39:31,284 INFO L276 IsEmpty]: Start isEmpty. Operand 37664 states and 53341 transitions. [2023-12-02 12:39:31,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2023-12-02 12:39:31,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:39:31,293 INFO L195 NwaCegarLoop]: trace histogram [18, 15, 14, 14, 14, 14, 14, 14, 14, 14, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:39:31,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-02 12:39:31,294 INFO L420 AbstractCegarLoop]: === Iteration 22 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:39:31,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:39:31,294 INFO L85 PathProgramCache]: Analyzing trace with hash -2030957821, now seen corresponding path program 1 times [2023-12-02 12:39:31,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:39:31,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648116740] [2023-12-02 12:39:31,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:39:31,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:39:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:39:31,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1243 trivial. 0 not checked. [2023-12-02 12:39:31,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:39:31,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648116740] [2023-12-02 12:39:31,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648116740] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:39:31,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:39:31,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:39:31,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133692089] [2023-12-02 12:39:31,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:39:31,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:39:31,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:39:31,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:39:31,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:39:31,648 INFO L87 Difference]: Start difference. First operand 37664 states and 53341 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-02 12:39:36,821 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 [] [2023-12-02 12:39:38,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:39:40,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:39:44,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:39:46,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:39:48,758 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 [] [2023-12-02 12:39:52,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:39:52,026 INFO L93 Difference]: Finished difference Result 37670 states and 53346 transitions. [2023-12-02 12:39:52,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:39:52,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 273 [2023-12-02 12:39:52,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:39:52,225 INFO L225 Difference]: With dead ends: 37670 [2023-12-02 12:39:52,225 INFO L226 Difference]: Without dead ends: 37666 [2023-12-02 12:39:52,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:39:52,237 INFO L413 NwaCegarLoop]: 2903 mSDtfsCounter, 3258 mSDsluCounter, 5782 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3259 SdHoareTripleChecker+Valid, 8685 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2023-12-02 12:39:52,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3259 Valid, 8685 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1281 Invalid, 6 Unknown, 0 Unchecked, 16.4s Time] [2023-12-02 12:39:52,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37666 states. [2023-12-02 12:39:55,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37666 to 37666. [2023-12-02 12:39:55,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37666 states, 22373 states have (on average 1.2596433200733026) internal successors, (28182), 22792 states have internal predecessors, (28182), 12503 states have call successors, (12503), 2854 states have call predecessors, (12503), 2787 states have return successors, (12657), 12226 states have call predecessors, (12657), 12499 states have call successors, (12657) [2023-12-02 12:39:55,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37666 states to 37666 states and 53342 transitions. [2023-12-02 12:39:55,952 INFO L78 Accepts]: Start accepts. Automaton has 37666 states and 53342 transitions. Word has length 273 [2023-12-02 12:39:55,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:39:55,953 INFO L495 AbstractCegarLoop]: Abstraction has 37666 states and 53342 transitions. [2023-12-02 12:39:55,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-02 12:39:55,953 INFO L276 IsEmpty]: Start isEmpty. Operand 37666 states and 53342 transitions. [2023-12-02 12:39:55,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-12-02 12:39:55,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:39:55,962 INFO L195 NwaCegarLoop]: trace histogram [18, 16, 15, 15, 14, 14, 14, 14, 14, 14, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:39:55,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-02 12:39:55,963 INFO L420 AbstractCegarLoop]: === Iteration 23 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:39:55,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:39:55,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1852754470, now seen corresponding path program 1 times [2023-12-02 12:39:55,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:39:55,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523053500] [2023-12-02 12:39:55,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:39:55,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:39:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:39:56,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1329 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 1299 trivial. 0 not checked. [2023-12-02 12:39:56,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:39:56,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523053500] [2023-12-02 12:39:56,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523053500] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:39:56,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:39:56,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:39:56,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018019404] [2023-12-02 12:39:56,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:39:56,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:39:56,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:39:56,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:39:56,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:39:56,371 INFO L87 Difference]: Start difference. First operand 37666 states and 53342 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-02 12:40:01,525 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 [] [2023-12-02 12:40:03,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:40:05,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:40:08,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:40:10,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:40:12,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:40:15,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:40:18,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:40:20,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:40:22,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:40:23,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:40:25,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:40:31,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:40:34,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:40:36,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:40:38,016 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 [] [2023-12-02 12:40:40,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:40:40,926 INFO L93 Difference]: Finished difference Result 73093 states and 103451 transitions. [2023-12-02 12:40:40,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 12:40:40,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 278 [2023-12-02 12:40:40,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:40:41,189 INFO L225 Difference]: With dead ends: 73093 [2023-12-02 12:40:41,189 INFO L226 Difference]: Without dead ends: 72866 [2023-12-02 12:40:41,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:40:41,220 INFO L413 NwaCegarLoop]: 2965 mSDtfsCounter, 2950 mSDsluCounter, 8750 mSDsCounter, 0 mSdLazyCounter, 1712 mSolverCounterSat, 3 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2950 SdHoareTripleChecker+Valid, 11715 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1712 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2023-12-02 12:40:41,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2950 Valid, 11715 Invalid, 1729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1712 Invalid, 14 Unknown, 0 Unchecked, 37.4s Time] [2023-12-02 12:40:41,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72866 states. [2023-12-02 12:40:49,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72866 to 72852. [2023-12-02 12:40:49,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72852 states, 43369 states have (on average 1.2603241947012844) internal successors, (54659), 44158 states have internal predecessors, (54659), 24057 states have call successors, (24057), 5555 states have call predecessors, (24057), 5423 states have return successors, (24369), 23542 states have call predecessors, (24369), 24053 states have call successors, (24369) [2023-12-02 12:40:50,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72852 states to 72852 states and 103085 transitions. [2023-12-02 12:40:50,081 INFO L78 Accepts]: Start accepts. Automaton has 72852 states and 103085 transitions. Word has length 278 [2023-12-02 12:40:50,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:40:50,082 INFO L495 AbstractCegarLoop]: Abstraction has 72852 states and 103085 transitions. [2023-12-02 12:40:50,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-02 12:40:50,082 INFO L276 IsEmpty]: Start isEmpty. Operand 72852 states and 103085 transitions. [2023-12-02 12:40:50,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-12-02 12:40:50,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:40:50,093 INFO L195 NwaCegarLoop]: trace histogram [20, 14, 14, 14, 14, 14, 14, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:40:50,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-02 12:40:50,093 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:40:50,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:40:50,093 INFO L85 PathProgramCache]: Analyzing trace with hash -852581533, now seen corresponding path program 1 times [2023-12-02 12:40:50,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:40:50,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972464731] [2023-12-02 12:40:50,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:40:50,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:40:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:40:50,532 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 998 trivial. 0 not checked. [2023-12-02 12:40:50,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:40:50,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972464731] [2023-12-02 12:40:50,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972464731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:40:50,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:40:50,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:40:50,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70606929] [2023-12-02 12:40:50,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:40:50,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:40:50,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:40:50,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:40:50,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:40:50,534 INFO L87 Difference]: Start difference. First operand 72852 states and 103085 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-02 12:40:56,686 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 [] [2023-12-02 12:40:58,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:41:00,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:41:02,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:41:06,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:41:08,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:41:10,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:41:11,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:41:14,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:41:21,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:41:21,998 INFO L93 Difference]: Finished difference Result 72854 states and 103086 transitions. [2023-12-02 12:41:21,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:41:21,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 279 [2023-12-02 12:41:21,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:41:22,259 INFO L225 Difference]: With dead ends: 72854 [2023-12-02 12:41:22,259 INFO L226 Difference]: Without dead ends: 72852 [2023-12-02 12:41:22,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 12:41:22,288 INFO L413 NwaCegarLoop]: 2941 mSDtfsCounter, 114 mSDsluCounter, 8724 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 11665 SdHoareTripleChecker+Invalid, 1730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:41:22,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 11665 Invalid, 1730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1721 Invalid, 8 Unknown, 0 Unchecked, 24.1s Time] [2023-12-02 12:41:22,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72852 states. [2023-12-02 12:41:30,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72852 to 72852. [2023-12-02 12:41:30,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72852 states, 43369 states have (on average 1.2595402245843805) internal successors, (54625), 44158 states have internal predecessors, (54625), 24057 states have call successors, (24057), 5555 states have call predecessors, (24057), 5423 states have return successors, (24369), 23542 states have call predecessors, (24369), 24053 states have call successors, (24369) [2023-12-02 12:41:30,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72852 states to 72852 states and 103051 transitions. [2023-12-02 12:41:30,472 INFO L78 Accepts]: Start accepts. Automaton has 72852 states and 103051 transitions. Word has length 279 [2023-12-02 12:41:30,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:41:30,473 INFO L495 AbstractCegarLoop]: Abstraction has 72852 states and 103051 transitions. [2023-12-02 12:41:30,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-02 12:41:30,473 INFO L276 IsEmpty]: Start isEmpty. Operand 72852 states and 103051 transitions. [2023-12-02 12:41:30,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2023-12-02 12:41:30,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:41:30,540 INFO L195 NwaCegarLoop]: trace histogram [22, 16, 16, 16, 16, 16, 16, 8, 8, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:41:30,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-02 12:41:30,541 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:41:30,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:41:30,541 INFO L85 PathProgramCache]: Analyzing trace with hash 36640436, now seen corresponding path program 1 times [2023-12-02 12:41:30,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:41:30,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316180806] [2023-12-02 12:41:30,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:41:30,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:41:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:41:31,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1309 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1304 trivial. 0 not checked. [2023-12-02 12:41:31,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:41:31,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316180806] [2023-12-02 12:41:31,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316180806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:41:31,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:41:31,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:41:31,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772515667] [2023-12-02 12:41:31,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:41:31,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:41:31,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:41:31,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:41:31,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:41:31,502 INFO L87 Difference]: Start difference. First operand 72852 states and 103051 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 3 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2023-12-02 12:41:36,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:41:38,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:41:41,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:41:43,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:41:46,422 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 [] [2023-12-02 12:41:55,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:41:55,450 INFO L93 Difference]: Finished difference Result 156491 states and 220610 transitions. [2023-12-02 12:41:55,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:41:55,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 3 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) Word has length 491 [2023-12-02 12:41:55,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:41:55,802 INFO L225 Difference]: With dead ends: 156491 [2023-12-02 12:41:55,802 INFO L226 Difference]: Without dead ends: 83668 [2023-12-02 12:41:55,984 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 [2023-12-02 12:41:55,984 INFO L413 NwaCegarLoop]: 4360 mSDtfsCounter, 2189 mSDsluCounter, 2852 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 18 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2189 SdHoareTripleChecker+Valid, 7212 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2023-12-02 12:41:55,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2189 Valid, 7212 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1139 Invalid, 5 Unknown, 0 Unchecked, 14.4s Time] [2023-12-02 12:41:56,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83668 states. [2023-12-02 12:42:04,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83668 to 83535. [2023-12-02 12:42:04,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83535 states, 50019 states have (on average 1.2580819288670306) internal successors, (62928), 50976 states have internal predecessors, (62928), 26870 states have call successors, (26870), 6801 states have call predecessors, (26870), 6643 states have return successors, (27146), 26205 states have call predecessors, (27146), 26866 states have call successors, (27146) [2023-12-02 12:42:04,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83535 states to 83535 states and 116944 transitions. [2023-12-02 12:42:04,658 INFO L78 Accepts]: Start accepts. Automaton has 83535 states and 116944 transitions. Word has length 491 [2023-12-02 12:42:04,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:42:04,658 INFO L495 AbstractCegarLoop]: Abstraction has 83535 states and 116944 transitions. [2023-12-02 12:42:04,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 3 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2023-12-02 12:42:04,658 INFO L276 IsEmpty]: Start isEmpty. Operand 83535 states and 116944 transitions. [2023-12-02 12:42:04,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2023-12-02 12:42:04,716 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:42:04,716 INFO L195 NwaCegarLoop]: trace histogram [25, 16, 16, 16, 16, 16, 16, 12, 12, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:42:04,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-02 12:42:04,717 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:42:04,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:42:04,717 INFO L85 PathProgramCache]: Analyzing trace with hash 826293468, now seen corresponding path program 1 times [2023-12-02 12:42:04,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:42:04,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855656880] [2023-12-02 12:42:04,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:42:04,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:42:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:42:05,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1571 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2023-12-02 12:42:05,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:42:05,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855656880] [2023-12-02 12:42:05,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855656880] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:42:05,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:42:05,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:42:05,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684569631] [2023-12-02 12:42:05,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:42:05,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:42:05,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:42:05,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:42:05,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:42:05,535 INFO L87 Difference]: Start difference. First operand 83535 states and 116944 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (80), 3 states have call predecessors, (80), 3 states have call successors, (80) [2023-12-02 12:42:10,739 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 [] [2023-12-02 12:42:12,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:42:16,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:42:18,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:42:20,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:42:23,118 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 [] [2023-12-02 12:42:32,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:42:32,753 INFO L93 Difference]: Finished difference Result 192067 states and 268462 transitions. [2023-12-02 12:42:32,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:42:32,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (80), 3 states have call predecessors, (80), 3 states have call successors, (80) Word has length 538 [2023-12-02 12:42:32,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:42:33,104 INFO L225 Difference]: With dead ends: 192067 [2023-12-02 12:42:33,104 INFO L226 Difference]: Without dead ends: 108608 [2023-12-02 12:42:33,259 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 [2023-12-02 12:42:33,259 INFO L413 NwaCegarLoop]: 4678 mSDtfsCounter, 2184 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 15 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 7528 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2023-12-02 12:42:33,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2184 Valid, 7528 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1199 Invalid, 5 Unknown, 0 Unchecked, 16.5s Time] [2023-12-02 12:42:33,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108608 states. [2023-12-02 12:42:44,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108608 to 108475. [2023-12-02 12:42:44,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108475 states, 65103 states have (on average 1.2571463680629158) internal successors, (81844), 66364 states have internal predecessors, (81844), 34438 states have call successors, (34438), 9129 states have call predecessors, (34438), 8931 states have return successors, (34722), 33565 states have call predecessors, (34722), 34434 states have call successors, (34722) [2023-12-02 12:42:44,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108475 states to 108475 states and 151004 transitions. [2023-12-02 12:42:44,604 INFO L78 Accepts]: Start accepts. Automaton has 108475 states and 151004 transitions. Word has length 538 [2023-12-02 12:42:44,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:42:44,605 INFO L495 AbstractCegarLoop]: Abstraction has 108475 states and 151004 transitions. [2023-12-02 12:42:44,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (80), 3 states have call predecessors, (80), 3 states have call successors, (80) [2023-12-02 12:42:44,605 INFO L276 IsEmpty]: Start isEmpty. Operand 108475 states and 151004 transitions. [2023-12-02 12:42:44,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2023-12-02 12:42:44,680 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:42:44,681 INFO L195 NwaCegarLoop]: trace histogram [27, 16, 16, 16, 16, 16, 16, 16, 16, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:42:44,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-02 12:42:44,681 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:42:44,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:42:44,682 INFO L85 PathProgramCache]: Analyzing trace with hash 399326372, now seen corresponding path program 1 times [2023-12-02 12:42:44,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:42:44,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112769089] [2023-12-02 12:42:44,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:42:44,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:42:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:42:45,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1863 trivial. 0 not checked. [2023-12-02 12:42:45,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:42:45,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112769089] [2023-12-02 12:42:45,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112769089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:42:45,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:42:45,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:42:45,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061156163] [2023-12-02 12:42:45,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:42:45,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:42:45,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:42:45,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:42:45,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:42:45,806 INFO L87 Difference]: Start difference. First operand 108475 states and 151004 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2023-12-02 12:42:50,692 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 [] [2023-12-02 12:42:54,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:42:56,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:43:06,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:43:06,780 INFO L93 Difference]: Finished difference Result 216810 states and 301816 transitions. [2023-12-02 12:43:06,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:43:06,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) Word has length 600 [2023-12-02 12:43:06,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:43:07,195 INFO L225 Difference]: With dead ends: 216810 [2023-12-02 12:43:07,195 INFO L226 Difference]: Without dead ends: 108411 [2023-12-02 12:43:07,422 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 [2023-12-02 12:43:07,422 INFO L413 NwaCegarLoop]: 2898 mSDtfsCounter, 6 mSDsluCounter, 2886 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 5784 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2023-12-02 12:43:07,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 5784 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 840 Invalid, 3 Unknown, 0 Unchecked, 9.7s Time] [2023-12-02 12:43:07,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108411 states. [2023-12-02 12:43:20,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108411 to 108411. [2023-12-02 12:43:20,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108411 states, 65071 states have (on average 1.256781054540425) internal successors, (81780), 66332 states have internal predecessors, (81780), 34406 states have call successors, (34406), 9129 states have call predecessors, (34406), 8931 states have return successors, (34690), 33533 states have call predecessors, (34690), 34402 states have call successors, (34690) [2023-12-02 12:43:20,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108411 states to 108411 states and 150876 transitions. [2023-12-02 12:43:20,723 INFO L78 Accepts]: Start accepts. Automaton has 108411 states and 150876 transitions. Word has length 600 [2023-12-02 12:43:20,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:43:20,724 INFO L495 AbstractCegarLoop]: Abstraction has 108411 states and 150876 transitions. [2023-12-02 12:43:20,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2023-12-02 12:43:20,724 INFO L276 IsEmpty]: Start isEmpty. Operand 108411 states and 150876 transitions. [2023-12-02 12:43:20,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2023-12-02 12:43:20,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:43:20,818 INFO L195 NwaCegarLoop]: trace histogram [27, 16, 16, 16, 16, 16, 16, 16, 16, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:43:20,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-02 12:43:20,819 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:43:20,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:43:20,819 INFO L85 PathProgramCache]: Analyzing trace with hash 458913891, now seen corresponding path program 1 times [2023-12-02 12:43:20,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:43:20,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266875144] [2023-12-02 12:43:20,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:43:20,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:43:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:43:21,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1881 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1867 trivial. 0 not checked. [2023-12-02 12:43:21,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:43:21,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266875144] [2023-12-02 12:43:21,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266875144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:43:21,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:43:21,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:43:21,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488603042] [2023-12-02 12:43:21,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:43:21,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:43:21,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:43:21,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:43:21,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:43:21,837 INFO L87 Difference]: Start difference. First operand 108411 states and 150876 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 2 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2023-12-02 12:43:27,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:43:29,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:43:32,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:43:34,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:43:46,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:43:46,208 INFO L93 Difference]: Finished difference Result 217322 states and 303816 transitions. [2023-12-02 12:43:46,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:43:46,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 2 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) Word has length 619 [2023-12-02 12:43:46,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:43:46,659 INFO L225 Difference]: With dead ends: 217322 [2023-12-02 12:43:46,659 INFO L226 Difference]: Without dead ends: 108987 [2023-12-02 12:43:46,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:43:46,934 INFO L413 NwaCegarLoop]: 2898 mSDtfsCounter, 12 mSDsluCounter, 2884 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 5782 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-12-02 12:43:46,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 5782 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 842 Invalid, 4 Unknown, 0 Unchecked, 11.8s Time] [2023-12-02 12:43:47,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108987 states. [2023-12-02 12:43:59,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108987 to 108731. [2023-12-02 12:43:59,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108731 states, 65327 states have (on average 1.2567544813017588) internal successors, (82100), 66588 states have internal predecessors, (82100), 34470 states have call successors, (34470), 9129 states have call predecessors, (34470), 8931 states have return successors, (34754), 33597 states have call predecessors, (34754), 34466 states have call successors, (34754) [2023-12-02 12:43:59,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108731 states to 108731 states and 151324 transitions. [2023-12-02 12:43:59,960 INFO L78 Accepts]: Start accepts. Automaton has 108731 states and 151324 transitions. Word has length 619 [2023-12-02 12:43:59,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:43:59,961 INFO L495 AbstractCegarLoop]: Abstraction has 108731 states and 151324 transitions. [2023-12-02 12:43:59,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 2 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2023-12-02 12:43:59,961 INFO L276 IsEmpty]: Start isEmpty. Operand 108731 states and 151324 transitions. [2023-12-02 12:44:00,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2023-12-02 12:44:00,048 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:44:00,048 INFO L195 NwaCegarLoop]: trace histogram [27, 16, 16, 16, 16, 16, 16, 16, 16, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:44:00,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-02 12:44:00,049 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 12:44:00,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:44:00,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1092566726, now seen corresponding path program 1 times [2023-12-02 12:44:00,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:44:00,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177375985] [2023-12-02 12:44:00,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:44:00,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:44:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:44:01,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1885 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1871 trivial. 0 not checked. [2023-12-02 12:44:01,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:44:01,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177375985] [2023-12-02 12:44:01,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177375985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:44:01,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:44:01,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 12:44:01,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811560710] [2023-12-02 12:44:01,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:44:01,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 12:44:01,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:44:01,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 12:44:01,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 12:44:01,449 INFO L87 Difference]: Start difference. First operand 108731 states and 151324 transitions. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 2 states have call successors, (92), 2 states have call predecessors, (92), 1 states have return successors, (91), 2 states have call predecessors, (91), 2 states have call successors, (91) [2023-12-02 12:44:06,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:08,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:10,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:12,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:16,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:18,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:24,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:29,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:31,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:35,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:37,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:39,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:42,676 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 []