./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--natsemi--natsemi.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff91c072-7053-48eb-8bd8-dcfac690e17c/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff91c072-7053-48eb-8bd8-dcfac690e17c/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_ff91c072-7053-48eb-8bd8-dcfac690e17c/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff91c072-7053-48eb-8bd8-dcfac690e17c/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--natsemi--natsemi.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff91c072-7053-48eb-8bd8-dcfac690e17c/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_ff91c072-7053-48eb-8bd8-dcfac690e17c/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 2528ab0154bfd45dbc6e33de3a31029199c439afce343ebf61a330fa9c381cd3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:58:21,722 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:58:21,860 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff91c072-7053-48eb-8bd8-dcfac690e17c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:58:21,873 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:58:21,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:58:21,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:58:21,919 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:58:21,920 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:58:21,921 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:58:21,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:58:21,928 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:58:21,929 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:58:21,930 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:58:21,932 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:58:21,932 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:58:21,933 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:58:21,933 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:58:21,934 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:58:21,934 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:58:21,935 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:58:21,935 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:58:21,936 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:58:21,937 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:58:21,938 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:58:21,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:58:21,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:58:21,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:58:21,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:58:21,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:58:21,940 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:58:21,942 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:58:21,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:58:21,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:58:21,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:58:21,943 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:58:21,943 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:58:21,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:58:21,944 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:58:21,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:58:21,944 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:58:21,945 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:58:21,945 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:58:21,945 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_ff91c072-7053-48eb-8bd8-dcfac690e17c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff91c072-7053-48eb-8bd8-dcfac690e17c/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2528ab0154bfd45dbc6e33de3a31029199c439afce343ebf61a330fa9c381cd3 [2023-11-19 04:58:22,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:58:22,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:58:22,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:58:22,334 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:58:22,335 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:58:22,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff91c072-7053-48eb-8bd8-dcfac690e17c/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--natsemi--natsemi.ko-entry_point.cil.out.i [2023-11-19 04:58:25,753 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:58:26,563 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:58:26,564 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff91c072-7053-48eb-8bd8-dcfac690e17c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--natsemi--natsemi.ko-entry_point.cil.out.i [2023-11-19 04:58:26,638 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff91c072-7053-48eb-8bd8-dcfac690e17c/bin/utaipan-verify-t7M7D8N6sZ/data/fe85a87e6/c7ade3a442ac44d29fc647692dfa94d0/FLAG6289db2c6 [2023-11-19 04:58:26,658 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff91c072-7053-48eb-8bd8-dcfac690e17c/bin/utaipan-verify-t7M7D8N6sZ/data/fe85a87e6/c7ade3a442ac44d29fc647692dfa94d0 [2023-11-19 04:58:26,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:58:26,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:58:26,669 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:58:26,670 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:58:26,676 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:58:26,676 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:58:26" (1/1) ... [2023-11-19 04:58:26,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@623b25aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:26, skipping insertion in model container [2023-11-19 04:58:26,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:58:26" (1/1) ... [2023-11-19 04:58:26,892 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:58:29,356 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_ff91c072-7053-48eb-8bd8-dcfac690e17c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--natsemi--natsemi.ko-entry_point.cil.out.i[313663,313676] [2023-11-19 04:58:29,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:58:29,548 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:58:29,748 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"); [5569] [2023-11-19 04:58:29,750 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)); [5576] [2023-11-19 04:58:29,750 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"); [5584-5585] [2023-11-19 04:58:29,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5763] [2023-11-19 04:58:29,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5771] [2023-11-19 04:58:29,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5778] [2023-11-19 04:58:29,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5785] [2023-11-19 04:58:29,780 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)); [5982-5983] [2023-11-19 04:58:29,783 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)); [6011-6012] [2023-11-19 04:58:29,786 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)); [6041-6042] [2023-11-19 04:58:29,789 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)); [6071-6072] [2023-11-19 04:58:29,800 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)); [6302-6303] [2023-11-19 04:58:29,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6308] [2023-11-19 04:58:29,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8322] [2023-11-19 04:58:29,946 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)(& np->rx_skbuff) + ((unsigned long )np->cur_rx & 31UL)) [8447] [2023-11-19 04:58:30,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10705/dscv_tempdir/dscv/ri/43_2a/drivers/net/ethernet/natsemi/natsemi.c"), "i" (3315), "i" (12UL)); [9740-9741] [2023-11-19 04:58:30,054 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_ff91c072-7053-48eb-8bd8-dcfac690e17c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--natsemi--natsemi.ko-entry_point.cil.out.i[313663,313676] [2023-11-19 04:58:30,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:58:30,367 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:58:30,367 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:58:30,375 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:58:30,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:30 WrapperNode [2023-11-19 04:58:30,376 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:58:30,377 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:58:30,378 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:58:30,378 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:58:30,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:30" (1/1) ... [2023-11-19 04:58:30,532 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:30" (1/1) ... [2023-11-19 04:58:30,824 INFO L138 Inliner]: procedures = 323, calls = 2266, calls flagged for inlining = 156, calls inlined = 136, statements flattened = 5694 [2023-11-19 04:58:30,825 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:58:30,827 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:58:30,827 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:58:30,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:58:30,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:30" (1/1) ... [2023-11-19 04:58:30,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:30" (1/1) ... [2023-11-19 04:58:30,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:30" (1/1) ... [2023-11-19 04:58:30,906 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:30" (1/1) ... [2023-11-19 04:58:31,064 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:30" (1/1) ... [2023-11-19 04:58:31,105 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:30" (1/1) ... [2023-11-19 04:58:31,140 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:30" (1/1) ... [2023-11-19 04:58:31,170 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:30" (1/1) ... [2023-11-19 04:58:31,218 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:58:31,219 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:58:31,220 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:58:31,220 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:58:31,221 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:30" (1/1) ... [2023-11-19 04:58:31,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:58:31,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff91c072-7053-48eb-8bd8-dcfac690e17c/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:58:31,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff91c072-7053-48eb-8bd8-dcfac690e17c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:58:31,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff91c072-7053-48eb-8bd8-dcfac690e17c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:58:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure drain_rx [2023-11-19 04:58:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_rx [2023-11-19 04:58:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-19 04:58:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-19 04:58:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-19 04:58:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2023-11-19 04:58:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2023-11-19 04:58:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:58:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_write [2023-11-19 04:58:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_write [2023-11-19 04:58:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:58:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 04:58:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 04:58:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:58:31,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:58:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_external [2023-11-19 04:58:31,304 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_external [2023-11-19 04:58:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:58:31,305 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:58:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-19 04:58:31,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-19 04:58:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_done [2023-11-19 04:58:31,306 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_done [2023-11-19 04:58:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 04:58:31,306 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 04:58:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-19 04:58:31,306 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-19 04:58:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 04:58:31,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 04:58:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats [2023-11-19 04:58:31,307 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats [2023-11-19 04:58:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:58:31,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:58:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_rx [2023-11-19 04:58:31,307 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_rx [2023-11-19 04:58:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-19 04:58:31,308 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-19 04:58:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2023-11-19 04:58:31,308 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2023-11-19 04:58:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 04:58:31,308 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 04:58:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 04:58:31,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 04:58:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_ring [2023-11-19 04:58:31,309 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_ring [2023-11-19 04:58:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 04:58:31,310 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 04:58:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-19 04:58:31,311 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-19 04:58:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-19 04:58:31,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-19 04:58:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 04:58:31,312 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 04:58:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-19 04:58:31,312 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-19 04:58:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 04:58:31,312 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 04:58:31,313 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_change_mtu [2023-11-19 04:58:31,313 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_change_mtu [2023-11-19 04:58:31,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:58:31,314 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:58:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:58:31,314 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:58:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2023-11-19 04:58:31,314 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2023-11-19 04:58:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 04:58:31,315 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 04:58:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-19 04:58:31,315 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-19 04:58:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 04:58:31,316 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 04:58:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2023-11-19 04:58:31,316 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2023-11-19 04:58:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:58:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 04:58:31,317 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_internal [2023-11-19 04:58:31,317 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_internal [2023-11-19 04:58:31,317 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 04:58:31,317 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 04:58:31,317 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-11-19 04:58:31,317 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-11-19 04:58:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure dump_ring [2023-11-19 04:58:31,318 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_ring [2023-11-19 04:58:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:58:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-19 04:58:31,318 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-19 04:58:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 04:58:31,318 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 04:58:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 04:58:31,319 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 04:58:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-19 04:58:31,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-19 04:58:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 04:58:31,320 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 04:58:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2023-11-19 04:58:31,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2023-11-19 04:58:31,321 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 04:58:31,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 04:58:31,321 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-19 04:58:31,321 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-19 04:58:31,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:58:31,322 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-19 04:58:31,322 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-19 04:58:31,322 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-19 04:58:31,322 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-19 04:58:31,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:58:31,323 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:58:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:58:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure intr_handler [2023-11-19 04:58:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_handler [2023-11-19 04:58:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2023-11-19 04:58:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2023-11-19 04:58:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 04:58:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 04:58:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 04:58:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 04:58:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 04:58:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 04:58:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_stop_rxtx [2023-11-19 04:58:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_stop_rxtx [2023-11-19 04:58:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure __get_stats [2023-11-19 04:58:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_stats [2023-11-19 04:58:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure ns_tx_timeout [2023-11-19 04:58:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_tx_timeout [2023-11-19 04:58:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure set_bufsize [2023-11-19 04:58:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bufsize [2023-11-19 04:58:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:58:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-19 04:58:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-19 04:58:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 04:58:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 04:58:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_reset [2023-11-19 04:58:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_reset [2023-11-19 04:58:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:58:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2023-11-19 04:58:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2023-11-19 04:58:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure drain_ring [2023-11-19 04:58:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_ring [2023-11-19 04:58:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:58:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-19 04:58:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-19 04:58:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 04:58:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 04:58:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 04:58:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 04:58:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-19 04:58:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-19 04:58:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure move_int_phy [2023-11-19 04:58:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure move_int_phy [2023-11-19 04:58:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_ioctl [2023-11-19 04:58:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_ioctl [2023-11-19 04:58:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 04:58:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 04:58:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 04:58:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 04:58:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure enable_wol_mode [2023-11-19 04:58:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_wol_mode [2023-11-19 04:58:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_resume [2023-11-19 04:58:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_resume [2023-11-19 04:58:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_remove1 [2023-11-19 04:58:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_remove1 [2023-11-19 04:58:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:58:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2023-11-19 04:58:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2023-11-19 04:58:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-19 04:58:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-19 04:58:31,409 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring [2023-11-19 04:58:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring [2023-11-19 04:58:31,409 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 04:58:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 04:58:31,409 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2023-11-19 04:58:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2023-11-19 04:58:31,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:58:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:58:31,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 04:58:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 04:58:31,410 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_disable [2023-11-19 04:58:31,410 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_disable [2023-11-19 04:58:31,410 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2023-11-19 04:58:31,410 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2023-11-19 04:58:31,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:58:31,410 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2023-11-19 04:58:31,410 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2023-11-19 04:58:31,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 04:58:31,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 04:58:31,410 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2023-11-19 04:58:31,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2023-11-19 04:58:31,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:58:31,411 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2023-11-19 04:58:31,411 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2023-11-19 04:58:31,411 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-11-19 04:58:31,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-11-19 04:58:31,411 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 04:58:31,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 04:58:31,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:58:31,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-19 04:58:31,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-19 04:58:31,411 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-19 04:58:31,412 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-19 04:58:31,412 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-19 04:58:31,412 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-19 04:58:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-19 04:58:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-19 04:58:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioaddr [2023-11-19 04:58:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioaddr [2023-11-19 04:58:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2023-11-19 04:58:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2023-11-19 04:58:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-19 04:58:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-19 04:58:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2023-11-19 04:58:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2023-11-19 04:58:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure refill_rx [2023-11-19 04:58:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure refill_rx [2023-11-19 04:58:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_poll_controller [2023-11-19 04:58:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_poll_controller [2023-11-19 04:58:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure check_link [2023-11-19 04:58:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure check_link [2023-11-19 04:58:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2023-11-19 04:58:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2023-11-19 04:58:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2023-11-19 04:58:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2023-11-19 04:58:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-11-19 04:58:31,417 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-11-19 04:58:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure drain_tx [2023-11-19 04:58:31,417 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_tx [2023-11-19 04:58:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_enable [2023-11-19 04:58:31,417 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_enable [2023-11-19 04:58:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 04:58:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 04:58:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 04:58:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 04:58:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 04:58:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 04:58:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure init_phy_fixup [2023-11-19 04:58:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure init_phy_fixup [2023-11-19 04:58:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:58:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_read [2023-11-19 04:58:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_read [2023-11-19 04:58:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-11-19 04:58:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-11-19 04:58:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-19 04:58:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-19 04:58:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-19 04:58:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-19 04:58:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_result [2023-11-19 04:58:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_result [2023-11-19 04:58:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:58:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:58:32,262 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:58:32,267 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:58:32,746 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:58:37,676 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:58:43,274 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:58:43,274 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:58:43,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:58:43 BoogieIcfgContainer [2023-11-19 04:58:43,294 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:58:43,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:58:43,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:58:43,301 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:58:43,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:58:26" (1/3) ... [2023-11-19 04:58:43,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e03e879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:58:43, skipping insertion in model container [2023-11-19 04:58:43,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:30" (2/3) ... [2023-11-19 04:58:43,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e03e879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:58:43, skipping insertion in model container [2023-11-19 04:58:43,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:58:43" (3/3) ... [2023-11-19 04:58:43,312 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--natsemi--natsemi.ko-entry_point.cil.out.i [2023-11-19 04:58:43,334 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:58:43,335 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:58:43,451 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:58:43,460 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;@57396712, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:58:43,469 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:58:43,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 1876 states, 1065 states have (on average 1.2910798122065728) internal successors, (1375), 1099 states have internal predecessors, (1375), 695 states have call successors, (695), 115 states have call predecessors, (695), 114 states have return successors, (687), 682 states have call predecessors, (687), 687 states have call successors, (687) [2023-11-19 04:58:43,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-19 04:58:43,526 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:43,528 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:58:43,529 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:58:43,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:43,537 INFO L85 PathProgramCache]: Analyzing trace with hash 354454124, now seen corresponding path program 1 times [2023-11-19 04:58:43,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:43,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778856239] [2023-11-19 04:58:43,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:43,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:44,710 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2023-11-19 04:58:44,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:44,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778856239] [2023-11-19 04:58:44,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778856239] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:44,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:44,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:58:44,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577126413] [2023-11-19 04:58:44,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:44,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:58:44,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:44,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:58:44,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:44,759 INFO L87 Difference]: Start difference. First operand has 1876 states, 1065 states have (on average 1.2910798122065728) internal successors, (1375), 1099 states have internal predecessors, (1375), 695 states have call successors, (695), 115 states have call predecessors, (695), 114 states have return successors, (687), 682 states have call predecessors, (687), 687 states have call successors, (687) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-19 04:58:53,098 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 [] [2023-11-19 04:58:53,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:53,613 INFO L93 Difference]: Finished difference Result 5298 states and 7808 transitions. [2023-11-19 04:58:53,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:58:53,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 199 [2023-11-19 04:58:53,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:53,674 INFO L225 Difference]: With dead ends: 5298 [2023-11-19 04:58:53,674 INFO L226 Difference]: Without dead ends: 3430 [2023-11-19 04:58:53,691 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 [2023-11-19 04:58:53,695 INFO L413 NwaCegarLoop]: 2648 mSDtfsCounter, 2352 mSDsluCounter, 2391 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 5039 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:53,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 5039 Invalid, 615 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 612 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2023-11-19 04:58:53,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3430 states. [2023-11-19 04:58:54,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3430 to 3427. [2023-11-19 04:58:54,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3427 states, 1943 states have (on average 1.2779207411219764) internal successors, (2483), 1990 states have internal predecessors, (2483), 1261 states have call successors, (1261), 223 states have call predecessors, (1261), 222 states have return successors, (1260), 1251 states have call predecessors, (1260), 1260 states have call successors, (1260) [2023-11-19 04:58:54,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 5004 transitions. [2023-11-19 04:58:54,251 INFO L78 Accepts]: Start accepts. Automaton has 3427 states and 5004 transitions. Word has length 199 [2023-11-19 04:58:54,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:54,253 INFO L495 AbstractCegarLoop]: Abstraction has 3427 states and 5004 transitions. [2023-11-19 04:58:54,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-19 04:58:54,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3427 states and 5004 transitions. [2023-11-19 04:58:54,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-11-19 04:58:54,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:54,267 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:54,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:58:54,268 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:58:54,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:54,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1917444550, now seen corresponding path program 1 times [2023-11-19 04:58:54,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:54,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488409887] [2023-11-19 04:58:54,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:54,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:55,344 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2023-11-19 04:58:55,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:55,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488409887] [2023-11-19 04:58:55,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488409887] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:55,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:55,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:58:55,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213332250] [2023-11-19 04:58:55,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:55,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:58:55,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:55,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:58:55,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:58:55,351 INFO L87 Difference]: Start difference. First operand 3427 states and 5004 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-19 04:58:59,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:59:06,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []