./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 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb25dad-cd1d-465e-b5fc-389216e1ee95/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb25dad-cd1d-465e-b5fc-389216e1ee95/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_cbb25dad-cd1d-465e-b5fc-389216e1ee95/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb25dad-cd1d-465e-b5fc-389216e1ee95/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--natsemi--natsemi.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb25dad-cd1d-465e-b5fc-389216e1ee95/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_cbb25dad-cd1d-465e-b5fc-389216e1ee95/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 2528ab0154bfd45dbc6e33de3a31029199c439afce343ebf61a330fa9c381cd3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:12:12,889 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:12:13,030 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb25dad-cd1d-465e-b5fc-389216e1ee95/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:12:13,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:12:13,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:12:13,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:12:13,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:12:13,083 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:12:13,084 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:12:13,089 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:12:13,090 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:12:13,091 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:12:13,091 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:12:13,093 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:12:13,094 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:12:13,094 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:12:13,094 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:12:13,095 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:12:13,095 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:12:13,096 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:12:13,096 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:12:13,097 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:12:13,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:12:13,098 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:12:13,099 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:12:13,099 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:12:13,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:12:13,100 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:12:13,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:12:13,101 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:12:13,102 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:12:13,103 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:12:13,103 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:12:13,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:12:13,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:13,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:12:13,104 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:12:13,104 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:12:13,104 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:12:13,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:12:13,105 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:12:13,105 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:12:13,106 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:12:13,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:12:13,106 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_cbb25dad-cd1d-465e-b5fc-389216e1ee95/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb25dad-cd1d-465e-b5fc-389216e1ee95/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2528ab0154bfd45dbc6e33de3a31029199c439afce343ebf61a330fa9c381cd3 [2023-11-23 21:12:13,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:12:13,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:12:13,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:12:13,439 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:12:13,441 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:12:13,442 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb25dad-cd1d-465e-b5fc-389216e1ee95/bin/utaipan-verify-mE87zJ7Ire/../../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 [2023-11-23 21:12:16,566 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:12:17,415 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:12:17,416 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb25dad-cd1d-465e-b5fc-389216e1ee95/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 [2023-11-23 21:12:17,487 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb25dad-cd1d-465e-b5fc-389216e1ee95/bin/utaipan-verify-mE87zJ7Ire/data/f6df4890b/08959ec14d63465da954a06363d43d82/FLAG74dc5459a [2023-11-23 21:12:17,505 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb25dad-cd1d-465e-b5fc-389216e1ee95/bin/utaipan-verify-mE87zJ7Ire/data/f6df4890b/08959ec14d63465da954a06363d43d82 [2023-11-23 21:12:17,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:12:17,514 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:12:17,515 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:17,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:12:17,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:12:17,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:17" (1/1) ... [2023-11-23 21:12:17,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@368f4d9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:17, skipping insertion in model container [2023-11-23 21:12:17,529 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:17" (1/1) ... [2023-11-23 21:12:17,988 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:12:21,043 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_cbb25dad-cd1d-465e-b5fc-389216e1ee95/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] [2023-11-23 21:12:21,119 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:21,174 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:12:21,354 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] [2023-11-23 21:12:21,357 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] [2023-11-23 21:12:21,357 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] [2023-11-23 21:12:21,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5763] [2023-11-23 21:12:21,368 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5771] [2023-11-23 21:12:21,369 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5778] [2023-11-23 21:12:21,369 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5785] [2023-11-23 21:12:21,388 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] [2023-11-23 21:12:21,390 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] [2023-11-23 21:12:21,394 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] [2023-11-23 21:12:21,395 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] [2023-11-23 21:12:21,406 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] [2023-11-23 21:12:21,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6308] [2023-11-23 21:12:21,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8322] [2023-11-23 21:12:21,542 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] [2023-11-23 21:12:21,622 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] [2023-11-23 21:12:21,657 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_cbb25dad-cd1d-465e-b5fc-389216e1ee95/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] [2023-11-23 21:12:21,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:21,960 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:12:21,960 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:12:21,968 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:12:21,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:21 WrapperNode [2023-11-23 21:12:21,969 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:22,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:22,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:12:22,021 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:12:22,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:21" (1/1) ... [2023-11-23 21:12:22,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:21" (1/1) ... [2023-11-23 21:12:22,471 INFO L138 Inliner]: procedures = 323, calls = 2266, calls flagged for inlining = 156, calls inlined = 136, statements flattened = 5694 [2023-11-23 21:12:22,472 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:22,473 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:12:22,473 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:12:22,473 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:12:22,484 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:21" (1/1) ... [2023-11-23 21:12:22,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:21" (1/1) ... [2023-11-23 21:12:22,548 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:21" (1/1) ... [2023-11-23 21:12:22,549 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:21" (1/1) ... [2023-11-23 21:12:22,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:21" (1/1) ... [2023-11-23 21:12:22,850 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:21" (1/1) ... [2023-11-23 21:12:22,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:21" (1/1) ... [2023-11-23 21:12:22,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:21" (1/1) ... [2023-11-23 21:12:22,990 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:12:22,991 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:12:22,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:12:22,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:12:22,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:21" (1/1) ... [2023-11-23 21:12:23,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:23,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb25dad-cd1d-465e-b5fc-389216e1ee95/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:12:23,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb25dad-cd1d-465e-b5fc-389216e1ee95/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:12:23,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb25dad-cd1d-465e-b5fc-389216e1ee95/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:12:23,090 INFO L130 BoogieDeclarations]: Found specification of procedure drain_rx [2023-11-23 21:12:23,091 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_rx [2023-11-23 21:12:23,091 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-23 21:12:23,091 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-23 21:12:23,092 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-23 21:12:23,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2023-11-23 21:12:23,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2023-11-23 21:12:23,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:12:23,092 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_write [2023-11-23 21:12:23,093 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_write [2023-11-23 21:12:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:12:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 21:12:23,093 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 21:12:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:12:23,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:12:23,094 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_external [2023-11-23 21:12:23,094 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_external [2023-11-23 21:12:23,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:12:23,094 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:12:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-23 21:12:23,095 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-23 21:12:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_done [2023-11-23 21:12:23,095 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_done [2023-11-23 21:12:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:12:23,096 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:12:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-23 21:12:23,096 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-23 21:12:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:12:23,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:12:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats [2023-11-23 21:12:23,097 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats [2023-11-23 21:12:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:12:23,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:12:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_rx [2023-11-23 21:12:23,097 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_rx [2023-11-23 21:12:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-23 21:12:23,098 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-23 21:12:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2023-11-23 21:12:23,098 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2023-11-23 21:12:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 21:12:23,098 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 21:12:23,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:12:23,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:12:23,099 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_ring [2023-11-23 21:12:23,099 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_ring [2023-11-23 21:12:23,099 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 21:12:23,099 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 21:12:23,100 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-23 21:12:23,100 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-23 21:12:23,100 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-23 21:12:23,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-23 21:12:23,100 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:12:23,101 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:12:23,101 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-23 21:12:23,101 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-23 21:12:23,101 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 21:12:23,101 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 21:12:23,102 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_change_mtu [2023-11-23 21:12:23,102 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_change_mtu [2023-11-23 21:12:23,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:12:23,102 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:12:23,102 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:12:23,103 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:12:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2023-11-23 21:12:23,103 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2023-11-23 21:12:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:12:23,103 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:12:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-23 21:12:23,104 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-23 21:12:23,104 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 21:12:23,104 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 21:12:23,104 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2023-11-23 21:12:23,104 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2023-11-23 21:12:23,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:12:23,105 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:12:23,105 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_internal [2023-11-23 21:12:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_internal [2023-11-23 21:12:23,105 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 21:12:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 21:12:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-11-23 21:12:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-11-23 21:12:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure dump_ring [2023-11-23 21:12:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_ring [2023-11-23 21:12:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:12:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-23 21:12:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-23 21:12:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 21:12:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 21:12:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 21:12:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 21:12:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 21:12:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 21:12:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:12:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:12:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2023-11-23 21:12:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2023-11-23 21:12:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 21:12:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 21:12:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-23 21:12:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-23 21:12:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:12:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-23 21:12:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-23 21:12:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-23 21:12:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-23 21:12:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:12:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:12:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:12:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure intr_handler [2023-11-23 21:12:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_handler [2023-11-23 21:12:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2023-11-23 21:12:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2023-11-23 21:12:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:12:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:12:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:12:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:12:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 21:12:23,113 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 21:12:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_stop_rxtx [2023-11-23 21:12:23,113 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_stop_rxtx [2023-11-23 21:12:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure __get_stats [2023-11-23 21:12:23,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_stats [2023-11-23 21:12:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure ns_tx_timeout [2023-11-23 21:12:23,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_tx_timeout [2023-11-23 21:12:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure set_bufsize [2023-11-23 21:12:23,114 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bufsize [2023-11-23 21:12:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:12:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-23 21:12:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-23 21:12:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:12:23,120 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:12:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_reset [2023-11-23 21:12:23,121 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_reset [2023-11-23 21:12:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:12:23,122 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2023-11-23 21:12:23,122 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2023-11-23 21:12:23,124 INFO L130 BoogieDeclarations]: Found specification of procedure drain_ring [2023-11-23 21:12:23,124 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_ring [2023-11-23 21:12:23,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:12:23,129 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-23 21:12:23,130 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-23 21:12:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:12:23,131 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:12:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:12:23,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:12:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-23 21:12:23,132 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-23 21:12:23,132 INFO L130 BoogieDeclarations]: Found specification of procedure move_int_phy [2023-11-23 21:12:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure move_int_phy [2023-11-23 21:12:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_ioctl [2023-11-23 21:12:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_ioctl [2023-11-23 21:12:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:12:23,134 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:12:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:12:23,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:12:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure enable_wol_mode [2023-11-23 21:12:23,135 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_wol_mode [2023-11-23 21:12:23,135 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_resume [2023-11-23 21:12:23,135 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_resume [2023-11-23 21:12:23,135 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_remove1 [2023-11-23 21:12:23,135 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_remove1 [2023-11-23 21:12:23,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:12:23,136 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2023-11-23 21:12:23,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2023-11-23 21:12:23,136 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-23 21:12:23,136 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-23 21:12:23,136 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring [2023-11-23 21:12:23,137 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring [2023-11-23 21:12:23,137 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-23 21:12:23,137 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-23 21:12:23,137 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2023-11-23 21:12:23,137 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2023-11-23 21:12:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:12:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:12:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:12:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:12:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_disable [2023-11-23 21:12:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_disable [2023-11-23 21:12:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2023-11-23 21:12:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2023-11-23 21:12:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:12:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2023-11-23 21:12:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2023-11-23 21:12:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:12:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:12:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2023-11-23 21:12:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2023-11-23 21:12:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:12:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2023-11-23 21:12:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2023-11-23 21:12:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-11-23 21:12:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-11-23 21:12:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:12:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:12:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:12:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 21:12:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 21:12:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-23 21:12:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-23 21:12:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-23 21:12:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-23 21:12:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-23 21:12:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-23 21:12:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioaddr [2023-11-23 21:12:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioaddr [2023-11-23 21:12:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2023-11-23 21:12:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2023-11-23 21:12:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 21:12:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 21:12:23,147 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2023-11-23 21:12:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2023-11-23 21:12:23,147 INFO L130 BoogieDeclarations]: Found specification of procedure refill_rx [2023-11-23 21:12:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure refill_rx [2023-11-23 21:12:23,147 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_poll_controller [2023-11-23 21:12:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_poll_controller [2023-11-23 21:12:23,148 INFO L130 BoogieDeclarations]: Found specification of procedure check_link [2023-11-23 21:12:23,148 INFO L138 BoogieDeclarations]: Found implementation of procedure check_link [2023-11-23 21:12:23,148 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2023-11-23 21:12:23,148 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2023-11-23 21:12:23,148 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2023-11-23 21:12:23,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2023-11-23 21:12:23,149 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-11-23 21:12:23,149 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-11-23 21:12:23,149 INFO L130 BoogieDeclarations]: Found specification of procedure drain_tx [2023-11-23 21:12:23,149 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_tx [2023-11-23 21:12:23,149 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_enable [2023-11-23 21:12:23,149 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_enable [2023-11-23 21:12:23,150 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 21:12:23,150 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 21:12:23,150 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-23 21:12:23,150 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-23 21:12:23,150 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-23 21:12:23,150 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-23 21:12:23,151 INFO L130 BoogieDeclarations]: Found specification of procedure init_phy_fixup [2023-11-23 21:12:23,151 INFO L138 BoogieDeclarations]: Found implementation of procedure init_phy_fixup [2023-11-23 21:12:23,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:12:23,151 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_read [2023-11-23 21:12:23,151 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_read [2023-11-23 21:12:23,151 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-11-23 21:12:23,152 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-11-23 21:12:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-23 21:12:23,152 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-23 21:12:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-23 21:12:23,152 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-23 21:12:23,153 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_result [2023-11-23 21:12:23,153 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_result [2023-11-23 21:12:23,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:12:23,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:12:24,123 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:12:24,129 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:12:24,698 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:12:30,264 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:12:36,036 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:12:36,037 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:12:36,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:36 BoogieIcfgContainer [2023-11-23 21:12:36,041 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:12:36,046 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:12:36,050 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:12:36,054 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:12:36,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:12:17" (1/3) ... [2023-11-23 21:12:36,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c325c77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:36, skipping insertion in model container [2023-11-23 21:12:36,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:21" (2/3) ... [2023-11-23 21:12:36,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c325c77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:36, skipping insertion in model container [2023-11-23 21:12:36,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:36" (3/3) ... [2023-11-23 21:12:36,059 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--natsemi--natsemi.ko-entry_point.cil.out.i [2023-11-23 21:12:36,083 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:12:36,084 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:12:36,218 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:12:36,227 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;@1a8112da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:12:36,227 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:12:36,243 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) [2023-11-23 21:12:36,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-23 21:12:36,294 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:36,295 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] [2023-11-23 21:12:36,296 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:36,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:36,310 INFO L85 PathProgramCache]: Analyzing trace with hash 2064937530, now seen corresponding path program 1 times [2023-11-23 21:12:36,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:36,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373660323] [2023-11-23 21:12:36,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:36,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:37,538 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2023-11-23 21:12:37,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:12:37,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373660323] [2023-11-23 21:12:37,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373660323] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:37,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:37,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:12:37,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267951359] [2023-11-23 21:12:37,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:37,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:12:37,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:12:37,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:12:37,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:12:37,610 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) [2023-11-23 21:12:42,543 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 21:12:45,676 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 21:12:47,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:47,127 INFO L93 Difference]: Finished difference Result 5298 states and 7808 transitions. [2023-11-23 21:12:47,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:12:47,130 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 [2023-11-23 21:12:47,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:47,181 INFO L225 Difference]: With dead ends: 5298 [2023-11-23 21:12:47,181 INFO L226 Difference]: Without dead ends: 3430 [2023-11-23 21:12:47,199 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 21:12:47,203 INFO L413 NwaCegarLoop]: 2648 mSDtfsCounter, 2352 mSDsluCounter, 2391 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 5039 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:47,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 5039 Invalid, 615 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 611 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2023-11-23 21:12:47,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3430 states. [2023-11-23 21:12:47,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3430 to 3427. [2023-11-23 21:12:47,535 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) [2023-11-23 21:12:47,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 5004 transitions. [2023-11-23 21:12:47,574 INFO L78 Accepts]: Start accepts. Automaton has 3427 states and 5004 transitions. Word has length 199 [2023-11-23 21:12:47,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:47,576 INFO L495 AbstractCegarLoop]: Abstraction has 3427 states and 5004 transitions. [2023-11-23 21:12:47,577 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) [2023-11-23 21:12:47,577 INFO L276 IsEmpty]: Start isEmpty. Operand 3427 states and 5004 transitions. [2023-11-23 21:12:47,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-11-23 21:12:47,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:47,590 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] [2023-11-23 21:12:47,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:12:47,591 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:47,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:47,592 INFO L85 PathProgramCache]: Analyzing trace with hash 914247788, now seen corresponding path program 1 times [2023-11-23 21:12:47,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:47,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965251296] [2023-11-23 21:12:47,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:47,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:48,594 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2023-11-23 21:12:48,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:12:48,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965251296] [2023-11-23 21:12:48,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965251296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:48,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:48,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:12:48,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227718237] [2023-11-23 21:12:48,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:48,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:12:48,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:12:48,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:12:48,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:12:48,605 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) [2023-11-23 21:12:52,286 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 21:12:55,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:13:01,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []