./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5fada9-331b-45dd-9817-ca2e347b6167/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5fada9-331b-45dd-9817-ca2e347b6167/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5fada9-331b-45dd-9817-ca2e347b6167/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5fada9-331b-45dd-9817-ca2e347b6167/bin/utaipan-verify-t7M7D8N6sZ/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_5c5fada9-331b-45dd-9817-ca2e347b6167/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5fada9-331b-45dd-9817-ca2e347b6167/bin/utaipan-verify-t7M7D8N6sZ --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-9bd2c7f [2023-11-19 05:00:02,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:00:03,062 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5fada9-331b-45dd-9817-ca2e347b6167/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:00:03,067 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:00:03,067 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:00:03,106 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:00:03,107 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:00:03,108 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:00:03,109 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:00:03,114 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:00:03,115 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:00:03,116 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:00:03,116 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:00:03,118 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:00:03,118 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:00:03,119 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:00:03,119 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:00:03,119 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:00:03,120 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:00:03,120 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:00:03,121 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:00:03,121 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:00:03,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:00:03,123 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:00:03,123 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:00:03,124 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:00:03,124 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:00:03,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:00:03,125 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:00:03,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:00:03,127 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:00:03,127 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:00:03,127 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:00:03,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:00:03,128 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:00:03,128 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:00:03,128 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:00:03,128 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:00:03,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:00:03,129 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:00:03,130 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:00:03,130 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:00:03,130 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_5c5fada9-331b-45dd-9817-ca2e347b6167/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5fada9-331b-45dd-9817-ca2e347b6167/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d3fedd3393c9ef9037d23202ca807e49e09d9211ff455e3da7db836a65b4737 [2023-11-19 05:00:03,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:00:03,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:00:03,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:00:03,499 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:00:03,500 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:00:03,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5fada9-331b-45dd-9817-ca2e347b6167/bin/utaipan-verify-t7M7D8N6sZ/../../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 [2023-11-19 05:00:06,599 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:00:07,370 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:00:07,372 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5fada9-331b-45dd-9817-ca2e347b6167/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 [2023-11-19 05:00:07,450 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5fada9-331b-45dd-9817-ca2e347b6167/bin/utaipan-verify-t7M7D8N6sZ/data/85a61b028/19a188b7ec89472e88ebaa57c668cd77/FLAG220cefe45 [2023-11-19 05:00:07,472 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5fada9-331b-45dd-9817-ca2e347b6167/bin/utaipan-verify-t7M7D8N6sZ/data/85a61b028/19a188b7ec89472e88ebaa57c668cd77 [2023-11-19 05:00:07,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:00:07,479 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:00:07,482 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:00:07,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:00:07,488 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:00:07,488 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:00:07" (1/1) ... [2023-11-19 05:00:07,489 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7652f320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:07, skipping insertion in model container [2023-11-19 05:00:07,490 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:00:07" (1/1) ... [2023-11-19 05:00:07,694 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:00:11,510 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_5c5fada9-331b-45dd-9817-ca2e347b6167/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] [2023-11-19 05:00:11,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:00:11,979 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:00:12,152 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] [2023-11-19 05:00:12,484 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] [2023-11-19 05:00:12,484 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] [2023-11-19 05:00:12,485 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] [2023-11-19 05:00:12,491 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] [2023-11-19 05:00:12,496 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] [2023-11-19 05:00:12,497 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] [2023-11-19 05:00:12,498 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] [2023-11-19 05:00:12,498 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] [2023-11-19 05:00:12,499 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] [2023-11-19 05:00:12,520 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] [2023-11-19 05:00:12,520 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] [2023-11-19 05:00:12,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [10806] [2023-11-19 05:00:12,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [10809] [2023-11-19 05:00:12,522 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [10812] [2023-11-19 05:00:12,522 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [10815] [2023-11-19 05:00:12,524 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (cpu_number)); [10913] [2023-11-19 05:00:12,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [10916] [2023-11-19 05:00:12,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [10919] [2023-11-19 05:00:12,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [10922] [2023-11-19 05:00:12,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret_____0): "m" (cpu_number)); [10933] [2023-11-19 05:00:12,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [10936] [2023-11-19 05:00:12,527 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [10939] [2023-11-19 05:00:12,527 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [10942] [2023-11-19 05:00:12,527 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret_____1): "m" (cpu_number)); [10953] [2023-11-19 05:00:12,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [10956] [2023-11-19 05:00:12,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [10959] [2023-11-19 05:00:12,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [10962] [2023-11-19 05:00:12,529 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret_____2): "m" (cpu_number)); [10973] [2023-11-19 05:00:12,529 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [10976] [2023-11-19 05:00:12,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [10979] [2023-11-19 05:00:12,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [10982] [2023-11-19 05:00:12,593 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_5c5fada9-331b-45dd-9817-ca2e347b6167/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] [2023-11-19 05:00:12,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:00:12,947 WARN L675 CHandler]: The function __bad_size_call_parameter is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:00:12,948 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:00:12,955 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:00:12,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:12 WrapperNode [2023-11-19 05:00:12,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:00:12,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:00:12,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:00:12,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:00:12,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:12" (1/1) ... [2023-11-19 05:00:13,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:12" (1/1) ... [2023-11-19 05:00:13,424 INFO L138 Inliner]: procedures = 565, calls = 3179, calls flagged for inlining = 259, calls inlined = 251, statements flattened = 9970 [2023-11-19 05:00:13,425 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:00:13,426 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:00:13,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:00:13,426 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:00:13,436 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:12" (1/1) ... [2023-11-19 05:00:13,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:12" (1/1) ... [2023-11-19 05:00:13,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:12" (1/1) ... [2023-11-19 05:00:13,508 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:12" (1/1) ... [2023-11-19 05:00:13,672 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:12" (1/1) ... [2023-11-19 05:00:13,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:12" (1/1) ... [2023-11-19 05:00:13,848 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:12" (1/1) ... [2023-11-19 05:00:13,869 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:12" (1/1) ... [2023-11-19 05:00:13,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:00:13,913 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:00:13,913 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:00:13,913 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:00:13,914 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:12" (1/1) ... [2023-11-19 05:00:13,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:00:13,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5fada9-331b-45dd-9817-ca2e347b6167/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:00:13,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5fada9-331b-45dd-9817-ca2e347b6167/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:00:13,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c5fada9-331b-45dd-9817-ca2e347b6167/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:00:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_ref [2023-11-19 05:00:13,991 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_ref [2023-11-19 05:00:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_cursor_set [2023-11-19 05:00:13,992 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_cursor_set [2023-11-19 05:00:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:00:13,992 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:00:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:00:13,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:00:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure mga_pci_remove [2023-11-19 05:00:13,992 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_pci_remove [2023-11-19 05:00:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_load_lut [2023-11-19 05:00:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_load_lut [2023-11-19 05:00:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure mga_user_framebuffer_destroy [2023-11-19 05:00:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_user_framebuffer_destroy [2023-11-19 05:00:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_probe_single_connector_modes [2023-11-19 05:00:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_probe_single_connector_modes [2023-11-19 05:00:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2023-11-19 05:00:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2023-11-19 05:00:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2023-11-19 05:00:13,994 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2023-11-19 05:00:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-19 05:00:13,994 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-19 05:00:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure drm_err [2023-11-19 05:00:13,994 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_err [2023-11-19 05:00:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-19 05:00:13,994 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-19 05:00:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-19 05:00:13,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-19 05:00:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 05:00:13,995 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 05:00:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure __ww_mutex_lock [2023-11-19 05:00:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __ww_mutex_lock [2023-11-19 05:00:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_disable [2023-11-19 05:00:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_disable [2023-11-19 05:00:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_base_of_ww_mutex [2023-11-19 05:00:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_base_of_ww_mutex [2023-11-19 05:00:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2023-11-19 05:00:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2023-11-19 05:00:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-19 05:00:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-19 05:00:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 05:00:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 05:00:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_unpin [2023-11-19 05:00:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_unpin [2023-11-19 05:00:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:00:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure mga_dirty_update [2023-11-19 05:00:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_dirty_update [2023-11-19 05:00:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fb_helper_fini [2023-11-19 05:00:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fb_helper_fini [2023-11-19 05:00:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kmap [2023-11-19 05:00:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kmap [2023-11-19 05:00:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_del_sub_from_lru [2023-11-19 05:00:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_del_sub_from_lru [2023-11-19 05:00:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_dpms [2023-11-19 05:00:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_dpms [2023-11-19 05:00:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_driver_unload [2023-11-19 05:00:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_driver_unload [2023-11-19 05:00:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_ttm_tt_unpopulate [2023-11-19 05:00:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_ttm_tt_unpopulate [2023-11-19 05:00:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:00:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kunmap [2023-11-19 05:00:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kunmap [2023-11-19 05:00:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure mga_encoder_prepare [2023-11-19 05:00:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_encoder_prepare [2023-11-19 05:00:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2023-11-19 05:00:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2023-11-19 05:00:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:00:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 05:00:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 05:00:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:00:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 05:00:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 05:00:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_apertures [2023-11-19 05:00:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_apertures [2023-11-19 05:00:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure mga_hide_cursor [2023-11-19 05:00:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_hide_cursor [2023-11-19 05:00:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference [2023-11-19 05:00:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference [2023-11-19 05:00:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_commit [2023-11-19 05:00:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_commit [2023-11-19 05:00:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 05:00:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 05:00:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:00:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure __devm_request_region [2023-11-19 05:00:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __devm_request_region [2023-11-19 05:00:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_gem_free_object [2023-11-19 05:00:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_gem_free_object [2023-11-19 05:00:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:00:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure mga_encoder_commit [2023-11-19 05:00:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_encoder_commit [2023-11-19 05:00:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_base_of_ww_mutex [2023-11-19 05:00:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_base_of_ww_mutex [2023-11-19 05:00:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 05:00:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 05:00:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 05:00:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 05:00:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_gem_create [2023-11-19 05:00:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_gem_create [2023-11-19 05:00:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:00:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 05:00:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-19 05:00:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-19 05:00:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure mga_encoder_dpms [2023-11-19 05:00:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_encoder_dpms [2023-11-19 05:00:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure mga_vga_calculate_mode_bandwidth [2023-11-19 05:00:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_vga_calculate_mode_bandwidth [2023-11-19 05:00:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_destroy [2023-11-19 05:00:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_destroy [2023-11-19 05:00:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-19 05:00:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-19 05:00:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2023-11-19 05:00:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2023-11-19 05:00:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2023-11-19 05:00:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2023-11-19 05:00:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_pin [2023-11-19 05:00:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_pin [2023-11-19 05:00:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 05:00:14,015 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 05:00:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_ttm_placement [2023-11-19 05:00:14,016 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_ttm_placement [2023-11-19 05:00:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_cursor_move [2023-11-19 05:00:14,016 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_cursor_move [2023-11-19 05:00:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:00:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:00:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_mmap [2023-11-19 05:00:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_mmap [2023-11-19 05:00:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_unreserve [2023-11-19 05:00:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_unreserve [2023-11-19 05:00:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 05:00:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 05:00:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_push_sysram [2023-11-19 05:00:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_push_sysram [2023-11-19 05:00:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:00:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:00:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:00:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:00:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_mode_set [2023-11-19 05:00:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_mode_set [2023-11-19 05:00:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2023-11-19 05:00:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_gpu_offset [2023-11-19 05:00:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_gpu_offset [2023-11-19 05:00:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_base_of_ww_mutex [2023-11-19 05:00:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_base_of_ww_mutex [2023-11-19 05:00:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2023-11-19 05:00:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2023-11-19 05:00:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 05:00:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 05:00:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 05:00:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 05:00:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-19 05:00:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-19 05:00:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:00:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:00:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:00:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:00:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked [2023-11-19 05:00:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked [2023-11-19 05:00:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 05:00:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 05:00:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-19 05:00:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-19 05:00:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:00:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_free [2023-11-19 05:00:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_free [2023-11-19 05:00:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2023-11-19 05:00:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2023-11-19 05:00:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2023-11-19 05:00:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:00:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_mode_fixup [2023-11-19 05:00:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_mode_fixup [2023-11-19 05:00:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure __ww_mutex_lock_interruptible [2023-11-19 05:00:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __ww_mutex_lock_interruptible [2023-11-19 05:00:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_ttm_backend_destroy [2023-11-19 05:00:14,031 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_ttm_backend_destroy [2023-11-19 05:00:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-19 05:00:14,031 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-19 05:00:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_create [2023-11-19 05:00:14,031 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_create [2023-11-19 05:00:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_do_set_base [2023-11-19 05:00:14,031 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_do_set_base [2023-11-19 05:00:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:00:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure drm_ut_debug_printk [2023-11-19 05:00:14,032 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_ut_debug_printk [2023-11-19 05:00:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 05:00:14,032 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 05:00:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 05:00:14,032 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 05:00:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_reserve___0 [2023-11-19 05:00:14,032 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_reserve___0 [2023-11-19 05:00:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure mga_encoder_destroy [2023-11-19 05:00:14,032 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_encoder_destroy [2023-11-19 05:00:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_prepare [2023-11-19 05:00:14,033 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_prepare [2023-11-19 05:00:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo [2023-11-19 05:00:14,033 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo [2023-11-19 05:00:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_gamma_set [2023-11-19 05:00:14,033 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_gamma_set [2023-11-19 05:00:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure mga_connector_destroy [2023-11-19 05:00:14,033 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_connector_destroy [2023-11-19 05:00:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2023-11-19 05:00:14,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2023-11-19 05:00:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_mutex_19 [2023-11-19 05:00:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_mutex_19 [2023-11-19 05:00:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure remove_conflicting_framebuffers [2023-11-19 05:00:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_conflicting_framebuffers [2023-11-19 05:00:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_connector_dpms [2023-11-19 05:00:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_connector_dpms [2023-11-19 05:00:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_framebuffer_init [2023-11-19 05:00:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_framebuffer_init [2023-11-19 05:00:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:00:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:00:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:00:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:00:14,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:00:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2023-11-19 05:00:14,035 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2023-11-19 05:00:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_reserve [2023-11-19 05:00:14,035 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_reserve [2023-11-19 05:00:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 05:00:14,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 05:00:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2023-11-19 05:00:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2023-11-19 05:00:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure drm_crtc_helper_set_config [2023-11-19 05:00:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_crtc_helper_set_config [2023-11-19 05:00:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure drm_poll [2023-11-19 05:00:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_poll [2023-11-19 05:00:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_mode_set_base [2023-11-19 05:00:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_mode_set_base [2023-11-19 05:00:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure mga_vga_detect [2023-11-19 05:00:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_vga_detect [2023-11-19 05:00:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_lookup [2023-11-19 05:00:14,037 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_lookup [2023-11-19 05:00:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure mga_i2c_set [2023-11-19 05:00:14,037 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_i2c_set [2023-11-19 05:00:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:00:15,382 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:00:15,386 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:00:16,155 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:00:36,468 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:00:43,210 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:00:43,210 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 05:00:43,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:00:43 BoogieIcfgContainer [2023-11-19 05:00:43,233 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:00:43,241 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:00:43,241 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:00:43,245 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:00:43,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:00:07" (1/3) ... [2023-11-19 05:00:43,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bdca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:00:43, skipping insertion in model container [2023-11-19 05:00:43,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:12" (2/3) ... [2023-11-19 05:00:43,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bdca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:00:43, skipping insertion in model container [2023-11-19 05:00:43,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:00:43" (3/3) ... [2023-11-19 05:00:43,250 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i [2023-11-19 05:00:43,273 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:00:43,273 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:00:43,393 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:00:43,401 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;@238aed57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:00:43,402 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:00:43,418 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) [2023-11-19 05:00:43,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-19 05:00:43,447 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:00:43,448 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] [2023-11-19 05:00:43,449 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:00:43,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:00:43,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1793308343, now seen corresponding path program 1 times [2023-11-19 05:00:43,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:00:43,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536474701] [2023-11-19 05:00:43,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:43,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:00:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:00:44,831 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2023-11-19 05:00:44,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:00:44,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536474701] [2023-11-19 05:00:44,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536474701] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:00:44,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:00:44,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:00:44,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53928248] [2023-11-19 05:00:44,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:00:44,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:00:44,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:00:44,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:00:44,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:00:44,890 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) [2023-11-19 05:00:49,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []