./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-43_2a-drivers--net--ethernet--amd--pcnet32.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_f4f2df6e-1088-4583-8c98-7094a7db7239/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4f2df6e-1088-4583-8c98-7094a7db7239/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_f4f2df6e-1088-4583-8c98-7094a7db7239/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4f2df6e-1088-4583-8c98-7094a7db7239/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4f2df6e-1088-4583-8c98-7094a7db7239/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_f4f2df6e-1088-4583-8c98-7094a7db7239/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 7ff003882b08ca56763f284139ca642342f8418a44f2a3d0d99a37ea441af7b9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:10:07,207 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:10:07,320 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4f2df6e-1088-4583-8c98-7094a7db7239/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:10:07,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:10:07,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:10:07,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:10:07,372 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:10:07,373 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:10:07,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:10:07,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:10:07,379 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:10:07,380 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:10:07,380 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:10:07,382 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:10:07,382 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:10:07,383 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:10:07,383 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:10:07,384 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:10:07,384 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:10:07,385 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:10:07,385 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:10:07,386 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:10:07,387 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:10:07,387 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:10:07,388 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:10:07,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:10:07,388 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:10:07,389 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:10:07,389 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:10:07,390 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:10:07,391 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:10:07,391 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:10:07,391 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:10:07,392 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:10:07,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:07,392 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:10:07,392 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:10:07,393 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:10:07,393 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:10:07,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:10:07,393 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:10:07,394 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:10:07,394 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:10:07,394 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:10:07,395 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_f4f2df6e-1088-4583-8c98-7094a7db7239/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4f2df6e-1088-4583-8c98-7094a7db7239/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ff003882b08ca56763f284139ca642342f8418a44f2a3d0d99a37ea441af7b9 [2023-11-23 21:10:07,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:10:07,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:10:07,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:10:07,728 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:10:07,729 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:10:07,730 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4f2df6e-1088-4583-8c98-7094a7db7239/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i [2023-11-23 21:10:10,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:10:11,627 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:10:11,627 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4f2df6e-1088-4583-8c98-7094a7db7239/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i [2023-11-23 21:10:11,693 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4f2df6e-1088-4583-8c98-7094a7db7239/bin/utaipan-verify-mE87zJ7Ire/data/bd9d03b8c/073f587fe3d74ee58e468e35b93f2784/FLAG694e2f229 [2023-11-23 21:10:11,711 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4f2df6e-1088-4583-8c98-7094a7db7239/bin/utaipan-verify-mE87zJ7Ire/data/bd9d03b8c/073f587fe3d74ee58e468e35b93f2784 [2023-11-23 21:10:11,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:10:11,719 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:10:11,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:11,722 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:10:11,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:10:11,729 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:11" (1/1) ... [2023-11-23 21:10:11,730 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d64cc3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:11, skipping insertion in model container [2023-11-23 21:10:11,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:11" (1/1) ... [2023-11-23 21:10:11,981 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:10:12,714 WARN L635 FunctionHandler]: implicit declaration of function ldv_undef_int [2023-11-23 21:10:12,715 WARN L635 FunctionHandler]: implicit declaration of function ldv_assume [2023-11-23 21:10:14,335 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_f4f2df6e-1088-4583-8c98-7094a7db7239/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i[330115,330128] [2023-11-23 21:10:14,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:14,444 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:10:14,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5598] [2023-11-23 21:10:14,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5605] [2023-11-23 21:10:14,673 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [5613-5614] [2023-11-23 21:10:14,676 WARN L635 FunctionHandler]: implicit declaration of function ldv_undef_int [2023-11-23 21:10:14,677 WARN L635 FunctionHandler]: implicit declaration of function ldv_assume [2023-11-23 21:10:14,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5815] [2023-11-23 21:10:14,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [5822] [2023-11-23 21:10:14,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [5830] [2023-11-23 21:10:14,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5837] [2023-11-23 21:10:14,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5845] [2023-11-23 21:10:14,703 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [6015-6016] [2023-11-23 21:10:14,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [6044-6045] [2023-11-23 21:10:14,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (108), "i" (12UL)); [6074-6075] [2023-11-23 21:10:14,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (120), "i" (12UL)); [6104-6105] [2023-11-23 21:10:14,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/netdevice.h"), "i" (507), "i" (12UL)); [6366-6367] [2023-11-23 21:10:14,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6372] [2023-11-23 21:10:14,735 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (cpu_number)); [6543] [2023-11-23 21:10:14,735 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6546] [2023-11-23 21:10:14,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6549] [2023-11-23 21:10:14,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6552] [2023-11-23 21:10:14,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret_____0): "m" (cpu_number)); [6563] [2023-11-23 21:10:14,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6566] [2023-11-23 21:10:14,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6569] [2023-11-23 21:10:14,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6572] [2023-11-23 21:10:14,739 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret_____1): "m" (cpu_number)); [6583] [2023-11-23 21:10:14,740 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6586] [2023-11-23 21:10:14,740 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6589] [2023-11-23 21:10:14,740 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6592] [2023-11-23 21:10:14,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret_____2): "m" (cpu_number)); [6603] [2023-11-23 21:10:14,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6606] [2023-11-23 21:10:14,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6609] [2023-11-23 21:10:14,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6612] [2023-11-23 21:10:14,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7150] [2023-11-23 21:10:14,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7592] [2023-11-23 21:10:14,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7612] [2023-11-23 21:10:14,825 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7618] [2023-11-23 21:10:14,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7641] [2023-11-23 21:10:14,852 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7978] [2023-11-23 21:10:14,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9265] [2023-11-23 21:10:14,972 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [9325] [2023-11-23 21:10:14,977 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9343] [2023-11-23 21:10:14,979 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9355] [2023-11-23 21:10:14,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9377] [2023-11-23 21:10:14,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9540] [2023-11-23 21:10:15,101 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_f4f2df6e-1088-4583-8c98-7094a7db7239/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i[330115,330128] [2023-11-23 21:10:15,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:15,359 WARN L675 CHandler]: The function __bad_size_call_parameter is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:15,359 WARN L675 CHandler]: The function ldv_assume is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:15,359 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:15,367 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:10:15,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:15 WrapperNode [2023-11-23 21:10:15,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:15,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:15,368 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:10:15,369 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:10:15,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:15" (1/1) ... [2023-11-23 21:10:15,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:15" (1/1) ... [2023-11-23 21:10:15,794 INFO L138 Inliner]: procedures = 329, calls = 2740, calls flagged for inlining = 161, calls inlined = 142, statements flattened = 7626 [2023-11-23 21:10:15,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:15,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:10:15,797 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:10:15,797 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:10:15,809 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:15" (1/1) ... [2023-11-23 21:10:15,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:15" (1/1) ... [2023-11-23 21:10:15,870 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:15" (1/1) ... [2023-11-23 21:10:15,870 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:15" (1/1) ... [2023-11-23 21:10:16,036 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:15" (1/1) ... [2023-11-23 21:10:16,076 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:15" (1/1) ... [2023-11-23 21:10:16,198 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:15" (1/1) ... [2023-11-23 21:10:16,231 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:15" (1/1) ... [2023-11-23 21:10:16,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:10:16,315 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:10:16,315 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:10:16,315 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:10:16,316 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:15" (1/1) ... [2023-11-23 21:10:16,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:16,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4f2df6e-1088-4583-8c98-7094a7db7239/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:10:16,383 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4f2df6e-1088-4583-8c98-7094a7db7239/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:10:16,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4f2df6e-1088-4583-8c98-7094a7db7239/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:10:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-23 21:10:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-23 21:10:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-23 21:10:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-23 21:10:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2023-11-23 21:10:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2023-11-23 21:10:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:10:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:10:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:10:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:10:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_rap [2023-11-23 21:10:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_rap [2023-11-23 21:10:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:10:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:10:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-23 21:10:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-23 21:10:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_pm_resume [2023-11-23 21:10:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_pm_resume [2023-11-23 21:10:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_check_media [2023-11-23 21:10:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_check_media [2023-11-23 21:10:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:10:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:10:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_ioctl [2023-11-23 21:10:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_ioctl [2023-11-23 21:10:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:10:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:10:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:10:16,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:10:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2023-11-23 21:10:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 21:10:16,491 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 21:10:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_poll_controller [2023-11-23 21:10:16,492 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_poll_controller [2023-11-23 21:10:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:10:16,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:10:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_free_ring [2023-11-23 21:10:16,492 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_free_ring [2023-11-23 21:10:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 21:10:16,493 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 21:10:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:10:16,493 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:10:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 21:10:16,493 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 21:10:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_interrupt [2023-11-23 21:10:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_interrupt [2023-11-23 21:10:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:10:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:10:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2023-11-23 21:10:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2023-11-23 21:10:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:10:16,495 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:10:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:10:16,495 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:10:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-23 21:10:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-23 21:10:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-23 21:10:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-23 21:10:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-23 21:10:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-23 21:10:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2023-11-23 21:10:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2023-11-23 21:10:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_rx_ring [2023-11-23 21:10:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_rx_ring [2023-11-23 21:10:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_csr [2023-11-23 21:10:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_csr [2023-11-23 21:10:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_tx_timeout [2023-11-23 21:10:16,498 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_tx_timeout [2023-11-23 21:10:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 21:10:16,498 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 21:10:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:10:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_stop [2023-11-23 21:10:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_stop [2023-11-23 21:10:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 21:10:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 21:10:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-11-23 21:10:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-11-23 21:10:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:10:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-23 21:10:16,500 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-23 21:10:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 21:10:16,500 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 21:10:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 21:10:16,501 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 21:10:16,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 21:10:16,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 21:10:16,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:10:16,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:10:16,501 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:10:16,502 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:10:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 21:10:16,502 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 21:10:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:10:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:10:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_csr [2023-11-23 21:10:16,503 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_csr [2023-11-23 21:10:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_set_multicast_list [2023-11-23 21:10:16,508 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_set_multicast_list [2023-11-23 21:10:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:10:16,509 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:10:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_bcr [2023-11-23 21:10:16,512 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_bcr [2023-11-23 21:10:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-23 21:10:16,512 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-23 21:10:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-23 21:10:16,512 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-23 21:10:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:10:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:10:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2023-11-23 21:10:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2023-11-23 21:10:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:10:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:10:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-23 21:10:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-23 21:10:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_probe1 [2023-11-23 21:10:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_probe1 [2023-11-23 21:10:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 21:10:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 21:10:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_get_stats [2023-11-23 21:10:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_get_stats [2023-11-23 21:10:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-23 21:10:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-23 21:10:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_remove_one [2023-11-23 21:10:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_remove_one [2023-11-23 21:10:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:10:16,516 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2023-11-23 21:10:16,516 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2023-11-23 21:10:16,516 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:10:16,516 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:10:16,516 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2023-11-23 21:10:16,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2023-11-23 21:10:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_bcr [2023-11-23 21:10:16,517 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_bcr [2023-11-23 21:10:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:10:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:10:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2023-11-23 21:10:16,517 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2023-11-23 21:10:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-23 21:10:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-23 21:10:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_tx_ring [2023-11-23 21:10:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_tx_ring [2023-11-23 21:10:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2023-11-23 21:10:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2023-11-23 21:10:16,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:10:16,519 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_rap [2023-11-23 21:10:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_rap [2023-11-23 21:10:16,519 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:10:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:10:16,519 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:10:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:10:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:10:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:10:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2023-11-23 21:10:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2023-11-23 21:10:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_bcr [2023-11-23 21:10:16,521 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_bcr [2023-11-23 21:10:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_bcr [2023-11-23 21:10:16,521 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_bcr [2023-11-23 21:10:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:10:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:10:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:10:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:10:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_init_ring [2023-11-23 21:10:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_init_ring [2023-11-23 21:10:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_close [2023-11-23 21:10:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_close [2023-11-23 21:10:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-23 21:10:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-23 21:10:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:10:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:10:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-23 21:10:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-23 21:10:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:10:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 21:10:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 21:10:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_suspend [2023-11-23 21:10:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_suspend [2023-11-23 21:10:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-23 21:10:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-23 21:10:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_start [2023-11-23 21:10:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_start [2023-11-23 21:10:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2023-11-23 21:10:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2023-11-23 21:10:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:10:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:10:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:10:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:10:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~~u16~0 [2023-11-23 21:10:16,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~~u16~0 [2023-11-23 21:10:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:10:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:10:16,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:10:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-23 21:10:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-23 21:10:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_csr [2023-11-23 21:10:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_csr [2023-11-23 21:10:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_open [2023-11-23 21:10:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_open [2023-11-23 21:10:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:10:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-11-23 21:10:16,530 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-11-23 21:10:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:10:16,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:10:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:10:16,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:10:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:10:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:10:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_load_multicast [2023-11-23 21:10:16,531 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_load_multicast [2023-11-23 21:10:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 21:10:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 21:10:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-23 21:10:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-23 21:10:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_reset [2023-11-23 21:10:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_reset [2023-11-23 21:10:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2023-11-23 21:10:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2023-11-23 21:10:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_printk [2023-11-23 21:10:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_printk [2023-11-23 21:10:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2023-11-23 21:10:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2023-11-23 21:10:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 21:10:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 21:10:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_restart [2023-11-23 21:10:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_restart [2023-11-23 21:10:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-23 21:10:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-23 21:10:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2023-11-23 21:10:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2023-11-23 21:10:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 21:10:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 21:10:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 21:10:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 21:10:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_csr [2023-11-23 21:10:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_csr [2023-11-23 21:10:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-23 21:10:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-23 21:10:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-11-23 21:10:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-11-23 21:10:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-23 21:10:16,550 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-23 21:10:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:10:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2023-11-23 21:10:16,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2023-11-23 21:10:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_reset [2023-11-23 21:10:16,551 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_reset [2023-11-23 21:10:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2023-11-23 21:10:16,551 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2023-11-23 21:10:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-23 21:10:16,551 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-23 21:10:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-23 21:10:16,551 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-23 21:10:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:10:16,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:10:17,534 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:10:17,544 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:10:17,985 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:10:30,624 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:10:34,699 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:10:34,699 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-23 21:10:34,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:34 BoogieIcfgContainer [2023-11-23 21:10:34,703 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:10:34,707 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:10:34,707 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:10:34,711 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:10:34,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:10:11" (1/3) ... [2023-11-23 21:10:34,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1baea78d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:34, skipping insertion in model container [2023-11-23 21:10:34,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:15" (2/3) ... [2023-11-23 21:10:34,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1baea78d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:34, skipping insertion in model container [2023-11-23 21:10:34,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:34" (3/3) ... [2023-11-23 21:10:34,717 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i [2023-11-23 21:10:34,741 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:10:34,741 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:10:34,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:10:34,884 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;@7bc93284, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:10:34,884 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:10:34,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 2075 states, 1290 states have (on average 1.3449612403100775) internal successors, (1735), 1353 states have internal predecessors, (1735), 669 states have call successors, (669), 117 states have call predecessors, (669), 116 states have return successors, (660), 652 states have call predecessors, (660), 660 states have call successors, (660) [2023-11-23 21:10:34,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2023-11-23 21:10:34,976 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:34,979 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 35, 35, 35, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:34,981 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:34,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:34,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1776582014, now seen corresponding path program 1 times [2023-11-23 21:10:34,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:10:35,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692823987] [2023-11-23 21:10:35,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:35,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:10:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:37,538 INFO L134 CoverageAnalysis]: Checked inductivity of 4617 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4617 trivial. 0 not checked. [2023-11-23 21:10:37,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:10:37,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692823987] [2023-11-23 21:10:37,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692823987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:37,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:37,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:10:37,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423330963] [2023-11-23 21:10:37,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:37,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:10:37,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:10:37,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:10:37,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:10:37,599 INFO L87 Difference]: Start difference. First operand has 2075 states, 1290 states have (on average 1.3449612403100775) internal successors, (1735), 1353 states have internal predecessors, (1735), 669 states have call successors, (669), 117 states have call predecessors, (669), 116 states have return successors, (660), 652 states have call predecessors, (660), 660 states have call successors, (660) Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2023-11-23 21:10:39,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:44,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:47,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:49,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:50,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:50,178 INFO L93 Difference]: Finished difference Result 5574 states and 8249 transitions. [2023-11-23 21:10:50,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:10:50,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 508 [2023-11-23 21:10:50,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:50,228 INFO L225 Difference]: With dead ends: 5574 [2023-11-23 21:10:50,229 INFO L226 Difference]: Without dead ends: 3539 [2023-11-23 21:10:50,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:10:50,250 INFO L413 NwaCegarLoop]: 2759 mSDtfsCounter, 2331 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2331 SdHoareTripleChecker+Valid, 5315 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:50,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2331 Valid, 5315 Invalid, 688 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 682 Invalid, 4 Unknown, 0 Unchecked, 12.1s Time] [2023-11-23 21:10:50,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3539 states. [2023-11-23 21:10:50,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3539 to 3536. [2023-11-23 21:10:50,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 2211 states have (on average 1.336951605608322) internal successors, (2956), 2292 states have internal predecessors, (2956), 1101 states have call successors, (1101), 224 states have call predecessors, (1101), 223 states have return successors, (1100), 1086 states have call predecessors, (1100), 1100 states have call successors, (1100) [2023-11-23 21:10:50,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 5157 transitions. [2023-11-23 21:10:50,574 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 5157 transitions. Word has length 508 [2023-11-23 21:10:50,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:50,577 INFO L495 AbstractCegarLoop]: Abstraction has 3536 states and 5157 transitions. [2023-11-23 21:10:50,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2023-11-23 21:10:50,578 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 5157 transitions. [2023-11-23 21:10:50,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2023-11-23 21:10:50,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:50,602 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 35, 35, 35, 10, 10, 10, 10, 10, 10, 10, 10, 10, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:50,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:10:50,602 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:50,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:50,603 INFO L85 PathProgramCache]: Analyzing trace with hash -229959790, now seen corresponding path program 1 times [2023-11-23 21:10:50,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:10:50,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761128163] [2023-11-23 21:10:50,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:50,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:10:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:52,057 INFO L134 CoverageAnalysis]: Checked inductivity of 4629 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4629 trivial. 0 not checked. [2023-11-23 21:10:52,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:10:52,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761128163] [2023-11-23 21:10:52,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761128163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:52,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:52,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:10:52,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052226109] [2023-11-23 21:10:52,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:52,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:10:52,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:10:52,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:10:52,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:10:52,087 INFO L87 Difference]: Start difference. First operand 3536 states and 5157 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2023-11-23 21:10:53,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:56,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []