./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--gpu--drm--mgag200--mgag200.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_55281442-a237-4fee-a307-b16ea6a6389c/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55281442-a237-4fee-a307-b16ea6a6389c/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_55281442-a237-4fee-a307-b16ea6a6389c/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55281442-a237-4fee-a307-b16ea6a6389c/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--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55281442-a237-4fee-a307-b16ea6a6389c/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_55281442-a237-4fee-a307-b16ea6a6389c/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 2d3fedd3393c9ef9037d23202ca807e49e09d9211ff455e3da7db836a65b4737 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:34:55,902 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:34:56,023 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55281442-a237-4fee-a307-b16ea6a6389c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:34:56,036 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:34:56,037 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:34:56,073 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:34:56,074 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:34:56,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:34:56,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:34:56,081 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:34:56,082 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:34:56,083 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:34:56,083 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:34:56,085 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:34:56,085 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:34:56,086 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:34:56,086 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:34:56,087 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:34:56,087 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:34:56,088 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:34:56,088 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:34:56,089 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:34:56,090 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:34:56,090 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:34:56,091 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:34:56,091 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:34:56,092 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:34:56,092 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:34:56,092 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:34:56,093 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:34:56,094 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:34:56,095 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:34:56,095 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:34:56,095 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:34:56,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:56,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:34:56,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:34:56,096 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:34:56,096 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:34:56,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:34:56,097 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:34:56,097 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:34:56,098 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:34:56,098 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:34:56,098 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_55281442-a237-4fee-a307-b16ea6a6389c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55281442-a237-4fee-a307-b16ea6a6389c/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d3fedd3393c9ef9037d23202ca807e49e09d9211ff455e3da7db836a65b4737 [2023-11-23 20:34:56,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:34:56,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:34:56,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:34:56,494 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:34:56,495 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:34:56,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55281442-a237-4fee-a307-b16ea6a6389c/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i [2023-11-23 20:34:59,634 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:35:00,309 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:35:00,309 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55281442-a237-4fee-a307-b16ea6a6389c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i [2023-11-23 20:35:00,359 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55281442-a237-4fee-a307-b16ea6a6389c/bin/utaipan-verify-mE87zJ7Ire/data/7b22a8bd2/39b2ec8041b142ee8b6f4376d12d94a2/FLAGe48b485f5 [2023-11-23 20:35:00,379 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55281442-a237-4fee-a307-b16ea6a6389c/bin/utaipan-verify-mE87zJ7Ire/data/7b22a8bd2/39b2ec8041b142ee8b6f4376d12d94a2 [2023-11-23 20:35:00,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:35:00,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:35:00,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:00,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:35:00,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:35:00,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:00" (1/1) ... [2023-11-23 20:35:00,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@258f894e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:00, skipping insertion in model container [2023-11-23 20:35:00,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:00" (1/1) ... [2023-11-23 20:35:00,601 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:35:04,915 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_55281442-a237-4fee-a307-b16ea6a6389c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i[367278,367291] [2023-11-23 20:35:05,355 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:05,430 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:35:05,549 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; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [5285-5286] [2023-11-23 20:35:05,935 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/10176/dscv_tempdir/dscv/ri/32_7a/drivers/gpu/drm/mgag200/mgag200_cursor.c"), "i" (69), "i" (12UL)); [9527-9528] [2023-11-23 20:35:05,936 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/10176/dscv_tempdir/dscv/ri/32_7a/drivers/gpu/drm/mgag200/mgag200_cursor.c"), "i" (70), "i" (12UL)); [9536-9537] [2023-11-23 20:35:05,936 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/10176/dscv_tempdir/dscv/ri/32_7a/drivers/gpu/drm/mgag200/mgag200_cursor.c"), "i" (71), "i" (12UL)); [9545-9546] [2023-11-23 20:35:05,947 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/10176/dscv_tempdir/dscv/ri/32_7a/drivers/gpu/drm/mgag200/mgag200_cursor.c"), "i" (184), "i" (12UL)); [9693-9694] [2023-11-23 20:35:05,951 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/10176/dscv_tempdir/dscv/ri/32_7a/drivers/gpu/drm/mgag200/mgag200_cursor.c"), "i" (242), "i" (12UL)); [9780-9781] [2023-11-23 20:35:05,955 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/10176/dscv_tempdir/dscv/ri/32_7a/drivers/gpu/drm/mgag200/mgag200_cursor.c"), "i" (266), "i" (12UL)); [9814-9815] [2023-11-23 20:35:05,955 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/10176/dscv_tempdir/dscv/ri/32_7a/drivers/gpu/drm/mgag200/mgag200_cursor.c"), "i" (267), "i" (12UL)); [9822-9823] [2023-11-23 20:35:05,956 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/10176/dscv_tempdir/dscv/ri/32_7a/drivers/gpu/drm/mgag200/mgag200_cursor.c"), "i" (268), "i" (12UL)); [9830-9831] [2023-11-23 20:35:05,957 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/10176/dscv_tempdir/dscv/ri/32_7a/drivers/gpu/drm/mgag200/mgag200_cursor.c"), "i" (269), "i" (12UL)); [9838-9839] [2023-11-23 20:35:05,981 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)); [10766-10767] [2023-11-23 20:35:05,981 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"); [10772-10774] [2023-11-23 20:35:05,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [10806] [2023-11-23 20:35:05,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [10809] [2023-11-23 20:35:05,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [10812] [2023-11-23 20:35:05,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [10815] [2023-11-23 20:35:05,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (cpu_number)); [10913] [2023-11-23 20:35:05,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [10916] [2023-11-23 20:35:05,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [10919] [2023-11-23 20:35:05,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [10922] [2023-11-23 20:35:05,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret_____0): "m" (cpu_number)); [10933] [2023-11-23 20:35:05,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [10936] [2023-11-23 20:35:05,990 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [10939] [2023-11-23 20:35:05,991 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [10942] [2023-11-23 20:35:05,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret_____1): "m" (cpu_number)); [10953] [2023-11-23 20:35:05,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [10956] [2023-11-23 20:35:05,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [10959] [2023-11-23 20:35:05,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [10962] [2023-11-23 20:35:05,994 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret_____2): "m" (cpu_number)); [10973] [2023-11-23 20:35:05,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [10976] [2023-11-23 20:35:05,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [10979] [2023-11-23 20:35:05,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [10982] [2023-11-23 20:35:06,092 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_55281442-a237-4fee-a307-b16ea6a6389c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i[367278,367291] [2023-11-23 20:35:06,119 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:06,376 WARN L675 CHandler]: The function __bad_size_call_parameter is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:06,376 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:06,385 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:35:06,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:06 WrapperNode [2023-11-23 20:35:06,387 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:06,389 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:06,389 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:35:06,389 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:35:06,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:06" (1/1) ... [2023-11-23 20:35:06,573 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:06" (1/1) ... [2023-11-23 20:35:06,993 INFO L138 Inliner]: procedures = 565, calls = 3179, calls flagged for inlining = 259, calls inlined = 251, statements flattened = 9970 [2023-11-23 20:35:06,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:06,995 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:35:06,995 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:35:06,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:35:07,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:06" (1/1) ... [2023-11-23 20:35:07,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:06" (1/1) ... [2023-11-23 20:35:07,059 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:06" (1/1) ... [2023-11-23 20:35:07,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:06" (1/1) ... [2023-11-23 20:35:07,352 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:06" (1/1) ... [2023-11-23 20:35:07,397 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:06" (1/1) ... [2023-11-23 20:35:07,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:06" (1/1) ... [2023-11-23 20:35:07,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:06" (1/1) ... [2023-11-23 20:35:07,519 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:35:07,520 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:35:07,520 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:35:07,520 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:35:07,521 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:06" (1/1) ... [2023-11-23 20:35:07,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:07,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55281442-a237-4fee-a307-b16ea6a6389c/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:07,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55281442-a237-4fee-a307-b16ea6a6389c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:35:07,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55281442-a237-4fee-a307-b16ea6a6389c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:35:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_ref [2023-11-23 20:35:07,607 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_ref [2023-11-23 20:35:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_cursor_set [2023-11-23 20:35:07,607 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_cursor_set [2023-11-23 20:35:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 20:35:07,608 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 20:35:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:35:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:35:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure mga_pci_remove [2023-11-23 20:35:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_pci_remove [2023-11-23 20:35:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_load_lut [2023-11-23 20:35:07,610 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_load_lut [2023-11-23 20:35:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure mga_user_framebuffer_destroy [2023-11-23 20:35:07,610 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_user_framebuffer_destroy [2023-11-23 20:35:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_probe_single_connector_modes [2023-11-23 20:35:07,611 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_probe_single_connector_modes [2023-11-23 20:35:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2023-11-23 20:35:07,611 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2023-11-23 20:35:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2023-11-23 20:35:07,611 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2023-11-23 20:35:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-23 20:35:07,612 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-23 20:35:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure drm_err [2023-11-23 20:35:07,612 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_err [2023-11-23 20:35:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-23 20:35:07,613 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-23 20:35:07,613 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-23 20:35:07,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-23 20:35:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 20:35:07,615 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 20:35:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure __ww_mutex_lock [2023-11-23 20:35:07,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __ww_mutex_lock [2023-11-23 20:35:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_disable [2023-11-23 20:35:07,616 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_disable [2023-11-23 20:35:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_base_of_ww_mutex [2023-11-23 20:35:07,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_base_of_ww_mutex [2023-11-23 20:35:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2023-11-23 20:35:07,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2023-11-23 20:35:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-23 20:35:07,617 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-23 20:35:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 20:35:07,618 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 20:35:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_unpin [2023-11-23 20:35:07,618 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_unpin [2023-11-23 20:35:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:35:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure mga_dirty_update [2023-11-23 20:35:07,619 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_dirty_update [2023-11-23 20:35:07,619 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fb_helper_fini [2023-11-23 20:35:07,619 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fb_helper_fini [2023-11-23 20:35:07,619 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kmap [2023-11-23 20:35:07,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kmap [2023-11-23 20:35:07,620 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_del_sub_from_lru [2023-11-23 20:35:07,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_del_sub_from_lru [2023-11-23 20:35:07,621 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_dpms [2023-11-23 20:35:07,621 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_dpms [2023-11-23 20:35:07,622 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_driver_unload [2023-11-23 20:35:07,622 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_driver_unload [2023-11-23 20:35:07,622 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_ttm_tt_unpopulate [2023-11-23 20:35:07,623 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_ttm_tt_unpopulate [2023-11-23 20:35:07,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:35:07,624 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kunmap [2023-11-23 20:35:07,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kunmap [2023-11-23 20:35:07,624 INFO L130 BoogieDeclarations]: Found specification of procedure mga_encoder_prepare [2023-11-23 20:35:07,624 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_encoder_prepare [2023-11-23 20:35:07,624 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2023-11-23 20:35:07,625 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2023-11-23 20:35:07,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:35:07,625 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 20:35:07,625 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 20:35:07,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:35:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 20:35:07,626 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 20:35:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_apertures [2023-11-23 20:35:07,627 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_apertures [2023-11-23 20:35:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure mga_hide_cursor [2023-11-23 20:35:07,627 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_hide_cursor [2023-11-23 20:35:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference [2023-11-23 20:35:07,628 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference [2023-11-23 20:35:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_commit [2023-11-23 20:35:07,628 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_commit [2023-11-23 20:35:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 20:35:07,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 20:35:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:35:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure __devm_request_region [2023-11-23 20:35:07,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __devm_request_region [2023-11-23 20:35:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_gem_free_object [2023-11-23 20:35:07,630 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_gem_free_object [2023-11-23 20:35:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:35:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure mga_encoder_commit [2023-11-23 20:35:07,631 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_encoder_commit [2023-11-23 20:35:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_base_of_ww_mutex [2023-11-23 20:35:07,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_base_of_ww_mutex [2023-11-23 20:35:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 20:35:07,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 20:35:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 20:35:07,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 20:35:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_gem_create [2023-11-23 20:35:07,633 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_gem_create [2023-11-23 20:35:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:35:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 20:35:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-23 20:35:07,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-23 20:35:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure mga_encoder_dpms [2023-11-23 20:35:07,636 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_encoder_dpms [2023-11-23 20:35:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure mga_vga_calculate_mode_bandwidth [2023-11-23 20:35:07,636 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_vga_calculate_mode_bandwidth [2023-11-23 20:35:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_destroy [2023-11-23 20:35:07,636 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_destroy [2023-11-23 20:35:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-23 20:35:07,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-23 20:35:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2023-11-23 20:35:07,638 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2023-11-23 20:35:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2023-11-23 20:35:07,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2023-11-23 20:35:07,642 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_pin [2023-11-23 20:35:07,643 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_pin [2023-11-23 20:35:07,643 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 20:35:07,644 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 20:35:07,644 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_ttm_placement [2023-11-23 20:35:07,644 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_ttm_placement [2023-11-23 20:35:07,645 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_cursor_move [2023-11-23 20:35:07,645 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_cursor_move [2023-11-23 20:35:07,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:35:07,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:35:07,651 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_mmap [2023-11-23 20:35:07,652 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_mmap [2023-11-23 20:35:07,652 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_unreserve [2023-11-23 20:35:07,652 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_unreserve [2023-11-23 20:35:07,652 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-23 20:35:07,652 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-23 20:35:07,653 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_push_sysram [2023-11-23 20:35:07,654 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_push_sysram [2023-11-23 20:35:07,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:35:07,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:35:07,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:35:07,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:35:07,654 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_mode_set [2023-11-23 20:35:07,655 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_mode_set [2023-11-23 20:35:07,655 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2023-11-23 20:35:07,655 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_gpu_offset [2023-11-23 20:35:07,655 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_gpu_offset [2023-11-23 20:35:07,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_base_of_ww_mutex [2023-11-23 20:35:07,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_base_of_ww_mutex [2023-11-23 20:35:07,656 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2023-11-23 20:35:07,656 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2023-11-23 20:35:07,656 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 20:35:07,656 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 20:35:07,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 20:35:07,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 20:35:07,657 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-23 20:35:07,657 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-23 20:35:07,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 20:35:07,657 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 20:35:07,657 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:35:07,658 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:35:07,658 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked [2023-11-23 20:35:07,658 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked [2023-11-23 20:35:07,658 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 20:35:07,659 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 20:35:07,659 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-23 20:35:07,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-23 20:35:07,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:35:07,659 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_free [2023-11-23 20:35:07,659 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_free [2023-11-23 20:35:07,660 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2023-11-23 20:35:07,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2023-11-23 20:35:07,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2023-11-23 20:35:07,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:35:07,660 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_mode_fixup [2023-11-23 20:35:07,661 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_mode_fixup [2023-11-23 20:35:07,661 INFO L130 BoogieDeclarations]: Found specification of procedure __ww_mutex_lock_interruptible [2023-11-23 20:35:07,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __ww_mutex_lock_interruptible [2023-11-23 20:35:07,661 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_ttm_backend_destroy [2023-11-23 20:35:07,661 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_ttm_backend_destroy [2023-11-23 20:35:07,661 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-23 20:35:07,662 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-23 20:35:07,662 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_create [2023-11-23 20:35:07,662 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_create [2023-11-23 20:35:07,662 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_do_set_base [2023-11-23 20:35:07,662 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_do_set_base [2023-11-23 20:35:07,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:35:07,663 INFO L130 BoogieDeclarations]: Found specification of procedure drm_ut_debug_printk [2023-11-23 20:35:07,664 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_ut_debug_printk [2023-11-23 20:35:07,664 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 20:35:07,664 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 20:35:07,664 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 20:35:07,664 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 20:35:07,666 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_reserve___0 [2023-11-23 20:35:07,666 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_reserve___0 [2023-11-23 20:35:07,667 INFO L130 BoogieDeclarations]: Found specification of procedure mga_encoder_destroy [2023-11-23 20:35:07,667 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_encoder_destroy [2023-11-23 20:35:07,667 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_prepare [2023-11-23 20:35:07,667 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_prepare [2023-11-23 20:35:07,667 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo [2023-11-23 20:35:07,667 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo [2023-11-23 20:35:07,668 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_gamma_set [2023-11-23 20:35:07,668 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_gamma_set [2023-11-23 20:35:07,668 INFO L130 BoogieDeclarations]: Found specification of procedure mga_connector_destroy [2023-11-23 20:35:07,668 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_connector_destroy [2023-11-23 20:35:07,668 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2023-11-23 20:35:07,669 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2023-11-23 20:35:07,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_mutex_19 [2023-11-23 20:35:07,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_mutex_19 [2023-11-23 20:35:07,669 INFO L130 BoogieDeclarations]: Found specification of procedure remove_conflicting_framebuffers [2023-11-23 20:35:07,669 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_conflicting_framebuffers [2023-11-23 20:35:07,669 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_connector_dpms [2023-11-23 20:35:07,670 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_connector_dpms [2023-11-23 20:35:07,670 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_framebuffer_init [2023-11-23 20:35:07,670 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_framebuffer_init [2023-11-23 20:35:07,670 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:35:07,670 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:35:07,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:35:07,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:35:07,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:35:07,671 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2023-11-23 20:35:07,671 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2023-11-23 20:35:07,671 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_reserve [2023-11-23 20:35:07,671 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_reserve [2023-11-23 20:35:07,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 20:35:07,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 20:35:07,672 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2023-11-23 20:35:07,672 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2023-11-23 20:35:07,672 INFO L130 BoogieDeclarations]: Found specification of procedure drm_crtc_helper_set_config [2023-11-23 20:35:07,672 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_crtc_helper_set_config [2023-11-23 20:35:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure drm_poll [2023-11-23 20:35:07,673 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_poll [2023-11-23 20:35:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_mode_set_base [2023-11-23 20:35:07,673 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_mode_set_base [2023-11-23 20:35:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure mga_vga_detect [2023-11-23 20:35:07,673 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_vga_detect [2023-11-23 20:35:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_lookup [2023-11-23 20:35:07,674 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_lookup [2023-11-23 20:35:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure mga_i2c_set [2023-11-23 20:35:07,674 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_i2c_set [2023-11-23 20:35:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:35:09,047 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:35:09,052 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:35:09,695 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:35:29,615 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:35:35,002 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:35:35,004 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:35:35,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:35 BoogieIcfgContainer [2023-11-23 20:35:35,013 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:35:35,017 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:35:35,018 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:35:35,021 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:35:35,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:35:00" (1/3) ... [2023-11-23 20:35:35,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583d3c86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:35, skipping insertion in model container [2023-11-23 20:35:35,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:06" (2/3) ... [2023-11-23 20:35:35,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583d3c86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:35, skipping insertion in model container [2023-11-23 20:35:35,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:35" (3/3) ... [2023-11-23 20:35:35,027 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i [2023-11-23 20:35:35,054 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:35:35,054 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:35:35,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:35:35,206 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;@177efca9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:35:35,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:35:35,225 INFO L276 IsEmpty]: Start isEmpty. Operand has 2490 states, 1535 states have (on average 1.336156351791531) internal successors, (2051), 1621 states have internal predecessors, (2051), 846 states have call successors, (846), 108 states have call predecessors, (846), 107 states have return successors, (829), 811 states have call predecessors, (829), 829 states have call successors, (829) [2023-11-23 20:35:35,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-23 20:35:35,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:35,264 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:35,265 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:35,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:35,275 INFO L85 PathProgramCache]: Analyzing trace with hash 368173060, now seen corresponding path program 1 times [2023-11-23 20:35:35,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:35,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235905119] [2023-11-23 20:35:35,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:35,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:37,000 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2023-11-23 20:35:37,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:37,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235905119] [2023-11-23 20:35:37,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235905119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:37,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:37,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:35:37,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126945690] [2023-11-23 20:35:37,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:37,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:35:37,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:37,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:35:37,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:35:37,072 INFO L87 Difference]: Start difference. First operand has 2490 states, 1535 states have (on average 1.336156351791531) internal successors, (2051), 1621 states have internal predecessors, (2051), 846 states have call successors, (846), 108 states have call predecessors, (846), 107 states have return successors, (829), 811 states have call predecessors, (829), 829 states have call successors, (829) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 20:35:41,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []