./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d46105-5279-4c7e-9e81-727ed248b645/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d46105-5279-4c7e-9e81-727ed248b645/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d46105-5279-4c7e-9e81-727ed248b645/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d46105-5279-4c7e-9e81-727ed248b645/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d46105-5279-4c7e-9e81-727ed248b645/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d46105-5279-4c7e-9e81-727ed248b645/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1264b42ba0b5dcb83ee2e2b35dfcd5adbd8a3fb1fa3fff4328b672883ffa55c1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:17,286 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:17,425 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d46105-5279-4c7e-9e81-727ed248b645/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:09:17,431 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:17,431 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:17,465 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:17,465 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:17,466 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:17,467 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:17,467 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:17,468 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:17,469 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:17,469 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:17,470 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:09:17,470 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:17,471 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:17,471 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:09:17,472 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:09:17,472 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:17,473 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:09:17,473 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:09:17,474 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:09:17,475 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:17,475 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:17,476 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:09:17,476 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:17,477 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:17,477 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:17,478 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:17,478 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:17,479 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:17,479 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:17,480 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:17,480 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:17,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:17,481 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:17,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:17,482 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:17,482 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:09:17,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:09:17,483 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:17,484 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:17,484 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:17,485 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:17,485 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_a6d46105-5279-4c7e-9e81-727ed248b645/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d46105-5279-4c7e-9e81-727ed248b645/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1264b42ba0b5dcb83ee2e2b35dfcd5adbd8a3fb1fa3fff4328b672883ffa55c1 [2023-11-23 21:09:17,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:17,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:17,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:17,854 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:17,855 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:17,856 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d46105-5279-4c7e-9e81-727ed248b645/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i [2023-11-23 21:09:20,923 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:21,532 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:21,533 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d46105-5279-4c7e-9e81-727ed248b645/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i [2023-11-23 21:09:21,594 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d46105-5279-4c7e-9e81-727ed248b645/bin/utaipan-verify-mE87zJ7Ire/data/39c8a50c6/62901f35c03c4a93bb8d56ef98f4478c/FLAG2e2eacb9c [2023-11-23 21:09:21,614 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d46105-5279-4c7e-9e81-727ed248b645/bin/utaipan-verify-mE87zJ7Ire/data/39c8a50c6/62901f35c03c4a93bb8d56ef98f4478c [2023-11-23 21:09:21,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:21,620 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:21,623 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:21,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:21,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:21,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:21" (1/1) ... [2023-11-23 21:09:21,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@351368aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:21, skipping insertion in model container [2023-11-23 21:09:21,631 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:21" (1/1) ... [2023-11-23 21:09:21,789 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:24,304 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_a6d46105-5279-4c7e-9e81-727ed248b645/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i[237227,237240] [2023-11-23 21:09:24,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:24,584 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:24,814 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"); [3942] [2023-11-23 21:09:24,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3949] [2023-11-23 21:09:24,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [3956] [2023-11-23 21:09:24,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [3964-3965] [2023-11-23 21:09:24,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [3974] [2023-11-23 21:09:24,821 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 *)"./arch/x86/include/asm/paravirt.h"), "i" (831), "i" (12UL)); [4041-4042] [2023-11-23 21:09:24,822 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" (43UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [4047-4049] [2023-11-23 21:09:24,823 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 *)"./arch/x86/include/asm/paravirt.h"), "i" (836), "i" (12UL)); [4071-4072] [2023-11-23 21:09:24,824 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.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [4077-4079] [2023-11-23 21:09:24,825 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 *)"./arch/x86/include/asm/paravirt.h"), "i" (841), "i" (12UL)); [4100-4101] [2023-11-23 21:09:24,825 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" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [4106-4108] [2023-11-23 21:09:24,842 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/scatterlist.h"), "i" (90), "i" (12UL)); [4417-4418] [2023-11-23 21:09:24,843 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/scatterlist.h"), "i" (92), "i" (12UL)); [4425-4426] [2023-11-23 21:09:24,844 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/scatterlist.h"), "i" (93), "i" (12UL)); [4433-4434] [2023-11-23 21:09:24,846 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/scatterlist.h"), "i" (123), "i" (12UL)); [4460-4461] [2023-11-23 21:09:24,847 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 *)"include/linux/scatterlist.h"), "i" (124), "i" (12UL)); [4468-4469] [2023-11-23 21:09:24,849 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/scatterlist.h"), "i" (193), "i" (12UL)); [4483-4484] [2023-11-23 21:09:24,886 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--32_7a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/8278/dscv_tempdir/dscv/ri/32_7a/drivers/memstick/core/ms_block.c"), "i" (464), "i" (12UL)); [5073-5074] [2023-11-23 21:09:24,892 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--32_7a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/8278/dscv_tempdir/dscv/ri/32_7a/drivers/memstick/core/ms_block.c"), "i" (577), "i" (12UL)); [5187-5188] [2023-11-23 21:09:24,896 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--32_7a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/8278/dscv_tempdir/dscv/ri/32_7a/drivers/memstick/core/ms_block.c"), "i" (653), "i" (12UL)); [5278-5279] [2023-11-23 21:09:24,901 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--32_7a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/8278/dscv_tempdir/dscv/ri/32_7a/drivers/memstick/core/ms_block.c"), "i" (676), "i" (12UL)); [5315-5316] [2023-11-23 21:09:24,908 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--32_7a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/8278/dscv_tempdir/dscv/ri/32_7a/drivers/memstick/core/ms_block.c"), "i" (719), "i" (12UL)); [5367-5368] [2023-11-23 21:09:24,934 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--32_7a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/8278/dscv_tempdir/dscv/ri/32_7a/drivers/memstick/core/ms_block.c"), "i" (953), "i" (12UL)); [5680-5681] [2023-11-23 21:09:24,940 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--32_7a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/8278/dscv_tempdir/dscv/ri/32_7a/drivers/memstick/core/ms_block.c"), "i" (1004), "i" (12UL)); [5753-5754] [2023-11-23 21:09:24,961 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--32_7a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/8278/dscv_tempdir/dscv/ri/32_7a/drivers/memstick/core/ms_block.c"), "i" (1262), "i" (12UL)); [6134-6135] [2023-11-23 21:09:25,099 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_a6d46105-5279-4c7e-9e81-727ed248b645/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i[237227,237240] [2023-11-23 21:09:25,169 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:25,278 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:25,278 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:25,286 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:25,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25 WrapperNode [2023-11-23 21:09:25,287 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:25,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:25,289 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:25,289 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:25,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:25,386 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:25,562 INFO L138 Inliner]: procedures = 306, calls = 1857, calls flagged for inlining = 110, calls inlined = 101, statements flattened = 4124 [2023-11-23 21:09:25,563 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:25,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:25,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:25,564 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:25,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:25,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:25,597 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:25,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:25,688 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:25,727 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:25,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:25,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:25,807 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:25,809 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:25,810 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:25,810 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:25,811 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:25,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:25,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d46105-5279-4c7e-9e81-727ed248b645/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:25,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d46105-5279-4c7e-9e81-727ed248b645/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:25,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d46105-5279-4c7e-9e81-727ed248b645/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-23 21:09:25,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-23 21:09:25,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_memstick_host [2023-11-23 21:09:25,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_memstick_host [2023-11-23 21:09:25,979 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-23 21:09:25,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-23 21:09:25,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:09:25,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:09:25,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:09:25,980 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:09:25,980 INFO L130 BoogieDeclarations]: Found specification of procedure msb_stop [2023-11-23 21:09:25,980 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_stop [2023-11-23 21:09:25,981 INFO L130 BoogieDeclarations]: Found specification of procedure msb_get_zone_from_pba [2023-11-23 21:09:25,981 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_get_zone_from_pba [2023-11-23 21:09:25,981 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-11-23 21:09:25,981 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-11-23 21:09:25,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:09:25,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:09:25,982 INFO L130 BoogieDeclarations]: Found specification of procedure blk_fetch_request [2023-11-23 21:09:25,982 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_fetch_request [2023-11-23 21:09:25,982 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-23 21:09:25,982 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-23 21:09:25,982 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-11-23 21:09:25,983 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-11-23 21:09:25,983 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:09:25,983 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:09:25,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:09:25,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:09:25,983 INFO L130 BoogieDeclarations]: Found specification of procedure msb_switch_to_parallel [2023-11-23 21:09:25,984 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_switch_to_parallel [2023-11-23 21:09:25,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:09:25,984 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:09:25,984 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:09:25,984 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:09:25,985 INFO L130 BoogieDeclarations]: Found specification of procedure msb_validate_used_block_bitmap [2023-11-23 21:09:25,986 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_validate_used_block_bitmap [2023-11-23 21:09:25,986 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 21:09:25,987 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 21:09:25,987 INFO L130 BoogieDeclarations]: Found specification of procedure msb_verify_block [2023-11-23 21:09:25,987 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_verify_block [2023-11-23 21:09:25,987 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:09:25,987 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:09:25,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2023-11-23 21:09:25,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2023-11-23 21:09:25,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_msb_disk_lock [2023-11-23 21:09:25,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_msb_disk_lock [2023-11-23 21:09:25,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:09:25,989 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:09:25,990 INFO L130 BoogieDeclarations]: Found specification of procedure msb_cache_write [2023-11-23 21:09:25,990 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_cache_write [2023-11-23 21:09:25,990 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 21:09:25,990 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-11-23 21:09:25,990 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-11-23 21:09:25,990 INFO L130 BoogieDeclarations]: Found specification of procedure memstick_set_drvdata [2023-11-23 21:09:25,991 INFO L138 BoogieDeclarations]: Found implementation of procedure memstick_set_drvdata [2023-11-23 21:09:25,991 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request [2023-11-23 21:09:25,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request [2023-11-23 21:09:25,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:09:25,991 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2023-11-23 21:09:25,992 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2023-11-23 21:09:25,992 INFO L130 BoogieDeclarations]: Found specification of procedure msb_invalidate_reg_window [2023-11-23 21:09:25,992 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_invalidate_reg_window [2023-11-23 21:09:25,993 INFO L130 BoogieDeclarations]: Found specification of procedure msb_io_work [2023-11-23 21:09:25,993 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_io_work [2023-11-23 21:09:25,993 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:09:25,993 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:09:25,993 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2023-11-23 21:09:25,993 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2023-11-23 21:09:25,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:09:25,994 INFO L130 BoogieDeclarations]: Found specification of procedure msb_erase_block [2023-11-23 21:09:25,994 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_erase_block [2023-11-23 21:09:25,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:09:25,994 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:09:25,994 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:09:25,994 INFO L130 BoogieDeclarations]: Found specification of procedure memstick_get_drvdata [2023-11-23 21:09:25,995 INFO L138 BoogieDeclarations]: Found implementation of procedure memstick_get_drvdata [2023-11-23 21:09:25,995 INFO L130 BoogieDeclarations]: Found specification of procedure msb_data_clear [2023-11-23 21:09:25,995 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_data_clear [2023-11-23 21:09:25,995 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 21:09:25,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 21:09:25,995 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-11-23 21:09:25,995 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-11-23 21:09:25,996 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:09:25,996 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:09:25,996 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-23 21:09:25,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-23 21:09:25,997 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 21:09:25,997 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 21:09:25,997 INFO L130 BoogieDeclarations]: Found specification of procedure msb_read_bad_block_table [2023-11-23 21:09:25,998 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_read_bad_block_table [2023-11-23 21:09:25,998 INFO L130 BoogieDeclarations]: Found specification of procedure msb_update_block [2023-11-23 21:09:25,999 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_update_block [2023-11-23 21:09:25,999 INFO L130 BoogieDeclarations]: Found specification of procedure msb_cache_flush [2023-11-23 21:09:25,999 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_cache_flush [2023-11-23 21:09:26,000 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_next [2023-11-23 21:09:26,000 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_next [2023-11-23 21:09:26,000 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2023-11-23 21:09:26,000 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2023-11-23 21:09:26,000 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_start [2023-11-23 21:09:26,000 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_start [2023-11-23 21:09:26,000 INFO L130 BoogieDeclarations]: Found specification of procedure msb_run_state_machine [2023-11-23 21:09:26,001 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_run_state_machine [2023-11-23 21:09:26,001 INFO L130 BoogieDeclarations]: Found specification of procedure msb_sg_copy [2023-11-23 21:09:26,001 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_sg_copy [2023-11-23 21:09:26,001 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2023-11-23 21:09:26,001 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2023-11-23 21:09:26,002 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 21:09:26,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 21:09:26,002 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_zero_bit [2023-11-23 21:09:26,002 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_zero_bit [2023-11-23 21:09:26,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_memstick_host [2023-11-23 21:09:26,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_memstick_host [2023-11-23 21:09:26,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:09:26,004 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-23 21:09:26,004 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-23 21:09:26,004 INFO L130 BoogieDeclarations]: Found specification of procedure msb_get_zone_from_lba [2023-11-23 21:09:26,005 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_get_zone_from_lba [2023-11-23 21:09:26,005 INFO L130 BoogieDeclarations]: Found specification of procedure msb_reset [2023-11-23 21:09:26,005 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_reset [2023-11-23 21:09:26,006 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_2 [2023-11-23 21:09:26,006 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_2 [2023-11-23 21:09:26,009 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2023-11-23 21:09:26,010 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2023-11-23 21:09:26,010 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:09:26,010 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:09:26,010 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2023-11-23 21:09:26,012 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2023-11-23 21:09:26,013 INFO L130 BoogieDeclarations]: Found specification of procedure msb_bd_getgeo [2023-11-23 21:09:26,013 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_bd_getgeo [2023-11-23 21:09:26,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:09:26,018 INFO L130 BoogieDeclarations]: Found specification of procedure msb_remove [2023-11-23 21:09:26,019 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_remove [2023-11-23 21:09:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:09:26,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:09:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2023-11-23 21:09:26,019 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2023-11-23 21:09:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure msb_mark_bad [2023-11-23 21:09:26,019 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_mark_bad [2023-11-23 21:09:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:09:26,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:09:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:09:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2023-11-23 21:09:26,020 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2023-11-23 21:09:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:09:26,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:09:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure sg_nents [2023-11-23 21:09:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_nents [2023-11-23 21:09:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:09:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure msb_read_page [2023-11-23 21:09:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_read_page [2023-11-23 21:09:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2023-11-23 21:09:26,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2023-11-23 21:09:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_stop [2023-11-23 21:09:26,022 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_stop [2023-11-23 21:09:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure msb_set_overwrite_flag [2023-11-23 21:09:26,022 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_set_overwrite_flag [2023-11-23 21:09:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_bytes [2023-11-23 21:09:26,023 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_bytes [2023-11-23 21:09:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2023-11-23 21:09:26,023 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2023-11-23 21:09:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure msb_disk_release [2023-11-23 21:09:26,023 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_disk_release [2023-11-23 21:09:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure msb_mark_block_used [2023-11-23 21:09:26,023 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_mark_block_used [2023-11-23 21:09:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure msb_cache_discard [2023-11-23 21:09:26,024 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_cache_discard [2023-11-23 21:09:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:09:26,024 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:09:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure msb_start [2023-11-23 21:09:26,024 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_start [2023-11-23 21:09:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-23 21:09:26,025 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-23 21:09:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-23 21:09:26,025 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-23 21:09:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2023-11-23 21:09:26,025 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2023-11-23 21:09:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure msb_init_card [2023-11-23 21:09:26,025 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_init_card [2023-11-23 21:09:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2023-11-23 21:09:26,026 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2023-11-23 21:09:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 21:09:26,026 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 21:09:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:09:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_one [2023-11-23 21:09:26,026 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_one [2023-11-23 21:09:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-11-23 21:09:26,027 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-11-23 21:09:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_msb_disk_lock [2023-11-23 21:09:26,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_msb_disk_lock [2023-11-23 21:09:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:26,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:26,665 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:26,670 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:26,936 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:09:30,143 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:31,233 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:31,233 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:09:31,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:31 BoogieIcfgContainer [2023-11-23 21:09:31,236 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:31,238 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:31,239 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:31,243 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:31,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:21" (1/3) ... [2023-11-23 21:09:31,244 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7375c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:31, skipping insertion in model container [2023-11-23 21:09:31,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (2/3) ... [2023-11-23 21:09:31,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7375c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:31, skipping insertion in model container [2023-11-23 21:09:31,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:31" (3/3) ... [2023-11-23 21:09:31,246 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i [2023-11-23 21:09:31,268 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:31,269 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:09:31,353 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:31,360 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;@555e656f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:31,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:09:31,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 1436 states, 906 states have (on average 1.358719646799117) internal successors, (1231), 950 states have internal predecessors, (1231), 440 states have call successors, (440), 89 states have call predecessors, (440), 88 states have return successors, (434), 428 states have call predecessors, (434), 434 states have call successors, (434) [2023-11-23 21:09:31,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-23 21:09:31,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:31,387 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-11-23 21:09:31,387 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:31,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:31,393 INFO L85 PathProgramCache]: Analyzing trace with hash 183421015, now seen corresponding path program 1 times [2023-11-23 21:09:31,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:31,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636832265] [2023-11-23 21:09:31,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:31,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:32,272 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-23 21:09:32,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:32,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636832265] [2023-11-23 21:09:32,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636832265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:32,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:32,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:32,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150502452] [2023-11-23 21:09:32,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:32,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:32,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:32,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:32,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:32,321 INFO L87 Difference]: Start difference. First operand has 1436 states, 906 states have (on average 1.358719646799117) internal successors, (1231), 950 states have internal predecessors, (1231), 440 states have call successors, (440), 89 states have call predecessors, (440), 88 states have return successors, (434), 428 states have call predecessors, (434), 434 states have call successors, (434) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 21:09:34,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:34,205 INFO L93 Difference]: Finished difference Result 4246 states and 6257 transitions. [2023-11-23 21:09:34,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:34,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 66 [2023-11-23 21:09:34,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:34,269 INFO L225 Difference]: With dead ends: 4246 [2023-11-23 21:09:34,270 INFO L226 Difference]: Without dead ends: 2784 [2023-11-23 21:09:34,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:34,292 INFO L413 NwaCegarLoop]: 1965 mSDtfsCounter, 2042 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2042 SdHoareTripleChecker+Valid, 3868 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:34,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2042 Valid, 3868 Invalid, 346 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-23 21:09:34,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2023-11-23 21:09:34,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2765. [2023-11-23 21:09:34,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2765 states, 1748 states have (on average 1.341533180778032) internal successors, (2345), 1814 states have internal predecessors, (2345), 844 states have call successors, (844), 173 states have call predecessors, (844), 172 states have return successors, (835), 821 states have call predecessors, (835), 835 states have call successors, (835) [2023-11-23 21:09:34,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2765 states to 2765 states and 4024 transitions. [2023-11-23 21:09:34,761 INFO L78 Accepts]: Start accepts. Automaton has 2765 states and 4024 transitions. Word has length 66 [2023-11-23 21:09:34,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:34,761 INFO L495 AbstractCegarLoop]: Abstraction has 2765 states and 4024 transitions. [2023-11-23 21:09:34,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 21:09:34,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2765 states and 4024 transitions. [2023-11-23 21:09:34,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-23 21:09:34,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:34,774 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-11-23 21:09:34,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:09:34,775 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:34,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:34,775 INFO L85 PathProgramCache]: Analyzing trace with hash -581055444, now seen corresponding path program 1 times [2023-11-23 21:09:34,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:34,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123752389] [2023-11-23 21:09:34,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:34,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:35,173 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-23 21:09:35,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:35,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123752389] [2023-11-23 21:09:35,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123752389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:35,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:35,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:35,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115444565] [2023-11-23 21:09:35,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:35,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:35,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:35,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:35,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:35,177 INFO L87 Difference]: Start difference. First operand 2765 states and 4024 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:09:36,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:36,882 INFO L93 Difference]: Finished difference Result 8209 states and 11954 transitions. [2023-11-23 21:09:36,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:36,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2023-11-23 21:09:36,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:36,934 INFO L225 Difference]: With dead ends: 8209 [2023-11-23 21:09:36,934 INFO L226 Difference]: Without dead ends: 5459 [2023-11-23 21:09:36,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:36,954 INFO L413 NwaCegarLoop]: 1968 mSDtfsCounter, 1993 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 3841 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:36,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1993 Valid, 3841 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 21:09:36,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5459 states. [2023-11-23 21:09:37,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5459 to 5450. [2023-11-23 21:09:37,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 3454 states have (on average 1.3407643312101911) internal successors, (4631), 3575 states have internal predecessors, (4631), 1657 states have call successors, (1657), 339 states have call predecessors, (1657), 338 states have return successors, (1648), 1623 states have call predecessors, (1648), 1648 states have call successors, (1648) [2023-11-23 21:09:37,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 7936 transitions. [2023-11-23 21:09:37,368 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 7936 transitions. Word has length 67 [2023-11-23 21:09:37,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:37,369 INFO L495 AbstractCegarLoop]: Abstraction has 5450 states and 7936 transitions. [2023-11-23 21:09:37,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:09:37,369 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 7936 transitions. [2023-11-23 21:09:37,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 21:09:37,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:37,372 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-11-23 21:09:37,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:09:37,372 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:37,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:37,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1562858307, now seen corresponding path program 1 times [2023-11-23 21:09:37,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:37,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78721986] [2023-11-23 21:09:37,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:37,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:37,611 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-23 21:09:37,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:37,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78721986] [2023-11-23 21:09:37,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78721986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:37,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:37,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:37,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768199414] [2023-11-23 21:09:37,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:37,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:37,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:37,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:37,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:37,619 INFO L87 Difference]: Start difference. First operand 5450 states and 7936 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:09:38,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:38,706 INFO L93 Difference]: Finished difference Result 5452 states and 7937 transitions. [2023-11-23 21:09:38,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:38,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2023-11-23 21:09:38,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:38,756 INFO L225 Difference]: With dead ends: 5452 [2023-11-23 21:09:38,757 INFO L226 Difference]: Without dead ends: 5449 [2023-11-23 21:09:38,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:38,768 INFO L413 NwaCegarLoop]: 1890 mSDtfsCounter, 2028 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2028 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:38,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2028 Valid, 1890 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 21:09:38,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2023-11-23 21:09:39,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2023-11-23 21:09:39,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 3454 states have (on average 1.3404748118123915) internal successors, (4630), 3574 states have internal predecessors, (4630), 1656 states have call successors, (1656), 339 states have call predecessors, (1656), 338 states have return successors, (1648), 1623 states have call predecessors, (1648), 1648 states have call successors, (1648) [2023-11-23 21:09:39,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 7934 transitions. [2023-11-23 21:09:39,282 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 7934 transitions. Word has length 70 [2023-11-23 21:09:39,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:39,282 INFO L495 AbstractCegarLoop]: Abstraction has 5449 states and 7934 transitions. [2023-11-23 21:09:39,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:09:39,283 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 7934 transitions. [2023-11-23 21:09:39,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-23 21:09:39,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:39,285 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-11-23 21:09:39,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:09:39,286 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:39,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:39,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1691407796, now seen corresponding path program 1 times [2023-11-23 21:09:39,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:39,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739042519] [2023-11-23 21:09:39,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:39,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:39,599 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-23 21:09:39,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:39,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739042519] [2023-11-23 21:09:39,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739042519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:39,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:39,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:39,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706158523] [2023-11-23 21:09:39,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:39,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:39,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:39,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:39,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:39,603 INFO L87 Difference]: Start difference. First operand 5449 states and 7934 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:09:41,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:41,928 INFO L93 Difference]: Finished difference Result 13991 states and 20234 transitions. [2023-11-23 21:09:41,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:41,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 72 [2023-11-23 21:09:41,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:42,010 INFO L225 Difference]: With dead ends: 13991 [2023-11-23 21:09:42,011 INFO L226 Difference]: Without dead ends: 8557 [2023-11-23 21:09:42,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:42,135 INFO L413 NwaCegarLoop]: 1989 mSDtfsCounter, 1181 mSDsluCounter, 1860 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 3849 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:42,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 3849 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-23 21:09:42,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8557 states. [2023-11-23 21:09:42,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8557 to 8539. [2023-11-23 21:09:42,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8539 states, 5482 states have (on average 1.3425757022984313) internal successors, (7360), 5656 states have internal predecessors, (7360), 2472 states have call successors, (2472), 585 states have call predecessors, (2472), 584 states have return successors, (2464), 2423 states have call predecessors, (2464), 2464 states have call successors, (2464) [2023-11-23 21:09:42,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8539 states to 8539 states and 12296 transitions. [2023-11-23 21:09:42,804 INFO L78 Accepts]: Start accepts. Automaton has 8539 states and 12296 transitions. Word has length 72 [2023-11-23 21:09:42,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:42,804 INFO L495 AbstractCegarLoop]: Abstraction has 8539 states and 12296 transitions. [2023-11-23 21:09:42,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:09:42,805 INFO L276 IsEmpty]: Start isEmpty. Operand 8539 states and 12296 transitions. [2023-11-23 21:09:42,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-23 21:09:42,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:42,807 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-11-23 21:09:42,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:09:42,807 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:42,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:42,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1204630835, now seen corresponding path program 1 times [2023-11-23 21:09:42,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:42,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310469644] [2023-11-23 21:09:42,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:42,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:43,050 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-23 21:09:43,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:43,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310469644] [2023-11-23 21:09:43,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310469644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:43,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:43,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:43,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695209603] [2023-11-23 21:09:43,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:43,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:43,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:43,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:43,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:43,053 INFO L87 Difference]: Start difference. First operand 8539 states and 12296 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:09:44,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:44,210 INFO L93 Difference]: Finished difference Result 8541 states and 12297 transitions. [2023-11-23 21:09:44,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:44,211 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2023-11-23 21:09:44,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:44,333 INFO L225 Difference]: With dead ends: 8541 [2023-11-23 21:09:44,340 INFO L226 Difference]: Without dead ends: 8538 [2023-11-23 21:09:44,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:44,356 INFO L413 NwaCegarLoop]: 1888 mSDtfsCounter, 2025 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:44,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2025 Valid, 1888 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:09:44,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8538 states. [2023-11-23 21:09:45,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8538 to 8538. [2023-11-23 21:09:45,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8538 states, 5482 states have (on average 1.3423932871214885) internal successors, (7359), 5655 states have internal predecessors, (7359), 2471 states have call successors, (2471), 585 states have call predecessors, (2471), 584 states have return successors, (2464), 2423 states have call predecessors, (2464), 2464 states have call successors, (2464) [2023-11-23 21:09:45,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8538 states to 8538 states and 12294 transitions. [2023-11-23 21:09:45,159 INFO L78 Accepts]: Start accepts. Automaton has 8538 states and 12294 transitions. Word has length 71 [2023-11-23 21:09:45,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:45,160 INFO L495 AbstractCegarLoop]: Abstraction has 8538 states and 12294 transitions. [2023-11-23 21:09:45,161 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:09:45,161 INFO L276 IsEmpty]: Start isEmpty. Operand 8538 states and 12294 transitions. [2023-11-23 21:09:45,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-23 21:09:45,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:45,163 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-11-23 21:09:45,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:09:45,163 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:45,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:45,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1310491072, now seen corresponding path program 1 times [2023-11-23 21:09:45,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:45,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179134829] [2023-11-23 21:09:45,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:45,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:45,417 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-23 21:09:45,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:45,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179134829] [2023-11-23 21:09:45,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179134829] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:45,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:45,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:45,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301944451] [2023-11-23 21:09:45,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:45,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:45,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:45,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:45,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:45,420 INFO L87 Difference]: Start difference. First operand 8538 states and 12294 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:09:47,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:47,507 INFO L93 Difference]: Finished difference Result 11170 states and 15992 transitions. [2023-11-23 21:09:47,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:47,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2023-11-23 21:09:47,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:47,578 INFO L225 Difference]: With dead ends: 11170 [2023-11-23 21:09:47,578 INFO L226 Difference]: Without dead ends: 11166 [2023-11-23 21:09:47,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:47,591 INFO L413 NwaCegarLoop]: 2497 mSDtfsCounter, 1973 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 3389 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:47,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1973 Valid, 3389 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-23 21:09:47,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11166 states. [2023-11-23 21:09:48,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11166 to 11164. [2023-11-23 21:09:48,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11164 states, 7118 states have (on average 1.3332396740657488) internal successors, (9490), 7333 states have internal predecessors, (9490), 3249 states have call successors, (3249), 797 states have call predecessors, (3249), 796 states have return successors, (3244), 3191 states have call predecessors, (3244), 3244 states have call successors, (3244) [2023-11-23 21:09:48,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11164 states to 11164 states and 15983 transitions. [2023-11-23 21:09:48,830 INFO L78 Accepts]: Start accepts. Automaton has 11164 states and 15983 transitions. Word has length 72 [2023-11-23 21:09:48,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:48,830 INFO L495 AbstractCegarLoop]: Abstraction has 11164 states and 15983 transitions. [2023-11-23 21:09:48,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:09:48,831 INFO L276 IsEmpty]: Start isEmpty. Operand 11164 states and 15983 transitions. [2023-11-23 21:09:48,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-23 21:09:48,837 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:48,837 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-11-23 21:09:48,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:09:48,837 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:48,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:48,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1969863728, now seen corresponding path program 1 times [2023-11-23 21:09:48,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:48,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364570546] [2023-11-23 21:09:48,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:48,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:49,114 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-23 21:09:49,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:49,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364570546] [2023-11-23 21:09:49,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364570546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:49,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:49,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:49,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534591119] [2023-11-23 21:09:49,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:49,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:49,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:49,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:49,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:49,117 INFO L87 Difference]: Start difference. First operand 11164 states and 15983 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:09:50,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:50,357 INFO L93 Difference]: Finished difference Result 11224 states and 16045 transitions. [2023-11-23 21:09:50,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:50,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2023-11-23 21:09:50,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:50,424 INFO L225 Difference]: With dead ends: 11224 [2023-11-23 21:09:50,424 INFO L226 Difference]: Without dead ends: 11220 [2023-11-23 21:09:50,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:50,435 INFO L413 NwaCegarLoop]: 1879 mSDtfsCounter, 1965 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1965 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:50,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1965 Valid, 1934 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:09:50,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11220 states. [2023-11-23 21:09:51,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11220 to 11218. [2023-11-23 21:09:51,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11218 states, 7146 states have (on average 1.330954380072768) internal successors, (9511), 7359 states have internal predecessors, (9511), 3263 states have call successors, (3263), 809 states have call predecessors, (3263), 808 states have return successors, (3260), 3207 states have call predecessors, (3260), 3260 states have call successors, (3260) [2023-11-23 21:09:51,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11218 states to 11218 states and 16034 transitions. [2023-11-23 21:09:51,441 INFO L78 Accepts]: Start accepts. Automaton has 11218 states and 16034 transitions. Word has length 73 [2023-11-23 21:09:51,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:51,442 INFO L495 AbstractCegarLoop]: Abstraction has 11218 states and 16034 transitions. [2023-11-23 21:09:51,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:09:51,443 INFO L276 IsEmpty]: Start isEmpty. Operand 11218 states and 16034 transitions. [2023-11-23 21:09:51,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-23 21:09:51,445 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:51,445 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-11-23 21:09:51,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:09:51,446 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:51,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:51,447 INFO L85 PathProgramCache]: Analyzing trace with hash 935584451, now seen corresponding path program 1 times [2023-11-23 21:09:51,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:51,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598238572] [2023-11-23 21:09:51,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:51,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:51,665 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-23 21:09:51,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:51,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598238572] [2023-11-23 21:09:51,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598238572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:51,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:51,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:51,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915240719] [2023-11-23 21:09:51,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:51,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:51,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:51,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:51,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:51,668 INFO L87 Difference]: Start difference. First operand 11218 states and 16034 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:09:53,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:53,149 INFO L93 Difference]: Finished difference Result 11220 states and 16035 transitions. [2023-11-23 21:09:53,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:53,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2023-11-23 21:09:53,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:53,209 INFO L225 Difference]: With dead ends: 11220 [2023-11-23 21:09:53,209 INFO L226 Difference]: Without dead ends: 11207 [2023-11-23 21:09:53,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:53,219 INFO L413 NwaCegarLoop]: 1879 mSDtfsCounter, 2012 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2012 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:53,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2012 Valid, 1879 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 21:09:53,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11207 states. [2023-11-23 21:09:54,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11207 to 11207. [2023-11-23 21:09:54,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11207 states, 7138 states have (on average 1.3300644438217988) internal successors, (9494), 7350 states have internal predecessors, (9494), 3261 states have call successors, (3261), 808 states have call predecessors, (3261), 807 states have return successors, (3259), 3206 states have call predecessors, (3259), 3259 states have call successors, (3259) [2023-11-23 21:09:54,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11207 states to 11207 states and 16014 transitions. [2023-11-23 21:09:54,311 INFO L78 Accepts]: Start accepts. Automaton has 11207 states and 16014 transitions. Word has length 74 [2023-11-23 21:09:54,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:54,311 INFO L495 AbstractCegarLoop]: Abstraction has 11207 states and 16014 transitions. [2023-11-23 21:09:54,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:09:54,312 INFO L276 IsEmpty]: Start isEmpty. Operand 11207 states and 16014 transitions. [2023-11-23 21:09:54,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-23 21:09:54,319 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:54,320 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:54,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 21:09:54,320 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:54,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:54,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1118938803, now seen corresponding path program 1 times [2023-11-23 21:09:54,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:54,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611229515] [2023-11-23 21:09:54,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:54,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:54,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:54,721 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-11-23 21:09:54,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:54,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611229515] [2023-11-23 21:09:54,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611229515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:54,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:54,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:54,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112139443] [2023-11-23 21:09:54,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:54,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:54,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:54,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:54,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:54,725 INFO L87 Difference]: Start difference. First operand 11207 states and 16014 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 21:09:56,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:56,692 INFO L93 Difference]: Finished difference Result 11209 states and 16015 transitions. [2023-11-23 21:09:56,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:56,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2023-11-23 21:09:56,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:56,772 INFO L225 Difference]: With dead ends: 11209 [2023-11-23 21:09:56,773 INFO L226 Difference]: Without dead ends: 11206 [2023-11-23 21:09:56,784 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 [2023-11-23 21:09:56,785 INFO L413 NwaCegarLoop]: 1880 mSDtfsCounter, 57 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 3706 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:56,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 3706 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 21:09:56,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11206 states. [2023-11-23 21:09:57,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11206 to 11206. [2023-11-23 21:09:57,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11206 states, 7138 states have (on average 1.3292238722331184) internal successors, (9488), 7349 states have internal predecessors, (9488), 3260 states have call successors, (3260), 808 states have call predecessors, (3260), 807 states have return successors, (3259), 3206 states have call predecessors, (3259), 3259 states have call successors, (3259) [2023-11-23 21:09:57,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11206 states to 11206 states and 16007 transitions. [2023-11-23 21:09:57,841 INFO L78 Accepts]: Start accepts. Automaton has 11206 states and 16007 transitions. Word has length 113 [2023-11-23 21:09:57,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:57,842 INFO L495 AbstractCegarLoop]: Abstraction has 11206 states and 16007 transitions. [2023-11-23 21:09:57,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 21:09:57,842 INFO L276 IsEmpty]: Start isEmpty. Operand 11206 states and 16007 transitions. [2023-11-23 21:09:57,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-23 21:09:57,883 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:57,884 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 21:09:57,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 21:09:57,884 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:57,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:57,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1035166685, now seen corresponding path program 1 times [2023-11-23 21:09:57,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:57,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708000000] [2023-11-23 21:09:57,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:57,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:58,254 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-11-23 21:09:58,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:58,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708000000] [2023-11-23 21:09:58,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708000000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:58,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:58,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:58,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154605615] [2023-11-23 21:09:58,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:58,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:58,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:58,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:58,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:58,258 INFO L87 Difference]: Start difference. First operand 11206 states and 16007 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-23 21:10:00,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:00,760 INFO L93 Difference]: Finished difference Result 25567 states and 36446 transitions. [2023-11-23 21:10:00,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:10:00,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 165 [2023-11-23 21:10:00,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:00,835 INFO L225 Difference]: With dead ends: 25567 [2023-11-23 21:10:00,835 INFO L226 Difference]: Without dead ends: 14384 [2023-11-23 21:10:00,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:10:00,899 INFO L413 NwaCegarLoop]: 3287 mSDtfsCounter, 1795 mSDsluCounter, 1768 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 5055 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:00,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1795 Valid, 5055 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-23 21:10:00,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14384 states.