./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_5b2f509d-f5a6-48e2-9376-7730707689fb/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2f509d-f5a6-48e2-9376-7730707689fb/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2f509d-f5a6-48e2-9376-7730707689fb/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2f509d-f5a6-48e2-9376-7730707689fb/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2f509d-f5a6-48e2-9376-7730707689fb/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2f509d-f5a6-48e2-9376-7730707689fb/bin/utaipan-verify-SwPr7d2a91 --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 a3968cfb5889c9f3d7db25b50a6978e9654cfd81b83e3cceec28f5c030877771 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:00:38,162 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:00:38,296 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2f509d-f5a6-48e2-9376-7730707689fb/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:00:38,305 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:00:38,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:00:38,353 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:00:38,354 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:00:38,354 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:00:38,355 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:00:38,361 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:00:38,361 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:00:38,363 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:00:38,363 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:00:38,365 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:00:38,366 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:00:38,366 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:00:38,367 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:00:38,367 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:00:38,368 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:00:38,368 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:00:38,369 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:00:38,370 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:00:38,371 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:00:38,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:00:38,372 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:00:38,372 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:00:38,373 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:00:38,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:00:38,374 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:00:38,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:00:38,376 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:00:38,376 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:00:38,377 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:00:38,377 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:00:38,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:00:38,378 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:00:38,378 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:00:38,378 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:00:38,379 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:00:38,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:00:38,379 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:00:38,380 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:00:38,380 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:00:38,381 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:00:38,381 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_5b2f509d-f5a6-48e2-9376-7730707689fb/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2f509d-f5a6-48e2-9376-7730707689fb/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3968cfb5889c9f3d7db25b50a6978e9654cfd81b83e3cceec28f5c030877771 [2023-11-25 00:00:38,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:00:38,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:00:38,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:00:38,743 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:00:38,743 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:00:38,745 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2f509d-f5a6-48e2-9376-7730707689fb/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i [2023-11-25 00:00:41,875 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:00:42,792 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:00:42,793 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2f509d-f5a6-48e2-9376-7730707689fb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i [2023-11-25 00:00:42,853 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2f509d-f5a6-48e2-9376-7730707689fb/bin/utaipan-verify-SwPr7d2a91/data/5df49dcac/0a0bb348ffb74dfd87f03dc4c9e967e7/FLAG3f2dedc8b [2023-11-25 00:00:42,871 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2f509d-f5a6-48e2-9376-7730707689fb/bin/utaipan-verify-SwPr7d2a91/data/5df49dcac/0a0bb348ffb74dfd87f03dc4c9e967e7 [2023-11-25 00:00:42,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:00:42,879 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:00:42,882 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:00:42,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:00:42,888 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:00:42,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:00:42" (1/1) ... [2023-11-25 00:00:42,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77d1a311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:42, skipping insertion in model container [2023-11-25 00:00:42,890 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:00:42" (1/1) ... [2023-11-25 00:00:43,099 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:00:46,293 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_5b2f509d-f5a6-48e2-9376-7730707689fb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320486,320499] [2023-11-25 00:00:46,299 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_5b2f509d-f5a6-48e2-9376-7730707689fb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320631,320644] [2023-11-25 00:00:46,332 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:00:46,378 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:00:46,498 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"); [5254] [2023-11-25 00:00:46,500 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)); [5261] [2023-11-25 00:00:46,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5268] [2023-11-25 00:00:46,503 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/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5307-5308] [2023-11-25 00:00:46,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5313-5315] [2023-11-25 00:00:46,511 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)); [5512-5513] [2023-11-25 00:00:46,514 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)); [5546-5547] [2023-11-25 00:00:46,516 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" (103), "i" (12UL)); [5583-5584] [2023-11-25 00:00:46,517 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" (115), "i" (12UL)); [5620-5621] [2023-11-25 00:00:46,572 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7060] [2023-11-25 00:00:46,813 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_5b2f509d-f5a6-48e2-9376-7730707689fb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320486,320499] [2023-11-25 00:00:46,813 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_5b2f509d-f5a6-48e2-9376-7730707689fb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320631,320644] [2023-11-25 00:00:46,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:00:47,118 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:00:47,128 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:00:47,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47 WrapperNode [2023-11-25 00:00:47,129 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:00:47,131 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:00:47,131 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:00:47,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:00:47,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,289 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,520 INFO L138 Inliner]: procedures = 433, calls = 1909, calls flagged for inlining = 216, calls inlined = 200, statements flattened = 4963 [2023-11-25 00:00:47,521 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:00:47,522 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:00:47,522 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:00:47,522 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:00:47,532 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,558 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,740 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,785 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,825 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,851 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,892 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:00:47,893 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:00:47,893 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:00:47,894 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:00:47,895 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:00:47,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2f509d-f5a6-48e2-9376-7730707689fb/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:00:48,030 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2f509d-f5a6-48e2-9376-7730707689fb/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:00:48,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2f509d-f5a6-48e2-9376-7730707689fb/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:00:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_90 [2023-11-25 00:00:48,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_90 [2023-11-25 00:00:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure getlinkstatus [2023-11-25 00:00:48,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinkstatus [2023-11-25 00:00:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-25 00:00:48,088 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-25 00:00:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-25 00:00:48,089 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-25 00:00:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-25 00:00:48,089 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-25 00:00:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-25 00:00:48,090 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-25 00:00:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-25 00:00:48,091 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-25 00:00:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-25 00:00:48,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-25 00:00:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-25 00:00:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-25 00:00:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-25 00:00:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-25 00:00:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-25 00:00:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-25 00:00:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-25 00:00:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-25 00:00:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-25 00:00:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-25 00:00:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-25 00:00:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_tx_timeout [2023-11-25 00:00:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_tx_timeout [2023-11-25 00:00:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-25 00:00:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-25 00:00:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-25 00:00:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-25 00:00:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-25 00:00:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-25 00:00:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2023-11-25 00:00:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2023-11-25 00:00:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure getlinktype [2023-11-25 00:00:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinktype [2023-11-25 00:00:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-25 00:00:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-25 00:00:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:00:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-25 00:00:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-25 00:00:48,100 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-25 00:00:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-25 00:00:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-25 00:00:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure reset_rx_descriptors [2023-11-25 00:00:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_rx_descriptors [2023-11-25 00:00:48,102 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-25 00:00:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-25 00:00:48,103 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_remove_one [2023-11-25 00:00:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_remove_one [2023-11-25 00:00:48,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-25 00:00:48,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-25 00:00:48,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-25 00:00:48,104 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-25 00:00:48,104 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-25 00:00:48,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:00:48,104 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-25 00:00:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-25 00:00:48,105 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-25 00:00:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-25 00:00:48,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-25 00:00:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-25 00:00:48,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-25 00:00:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-25 00:00:48,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-25 00:00:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-25 00:00:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-25 00:00:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-25 00:00:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-25 00:00:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-25 00:00:48,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:00:48,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-25 00:00:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-25 00:00:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-25 00:00:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-25 00:00:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:00:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2023-11-25 00:00:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2023-11-25 00:00:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-25 00:00:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-25 00:00:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-25 00:00:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-25 00:00:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:00:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-25 00:00:48,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-25 00:00:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-25 00:00:48,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-25 00:00:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-25 00:00:48,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-25 00:00:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-25 00:00:48,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-25 00:00:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-25 00:00:48,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-25 00:00:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-25 00:00:48,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-25 00:00:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-25 00:00:48,113 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-25 00:00:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-25 00:00:48,113 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-25 00:00:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-25 00:00:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-25 00:00:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_102 [2023-11-25 00:00:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_102 [2023-11-25 00:00:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rx [2023-11-25 00:00:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rx [2023-11-25 00:00:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-25 00:00:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-25 00:00:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:00:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:00:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-25 00:00:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-25 00:00:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-25 00:00:48,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-25 00:00:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2023-11-25 00:00:48,118 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2023-11-25 00:00:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-25 00:00:48,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-25 00:00:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-25 00:00:48,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-25 00:00:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure enable_rxtx [2023-11-25 00:00:48,119 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_rxtx [2023-11-25 00:00:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-25 00:00:48,120 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-25 00:00:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-25 00:00:48,120 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-25 00:00:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-25 00:00:48,120 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-25 00:00:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-25 00:00:48,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-25 00:00:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-25 00:00:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-25 00:00:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-11-25 00:00:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-11-25 00:00:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:00:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure reset_and_disable_rxtx [2023-11-25 00:00:48,127 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_and_disable_rxtx [2023-11-25 00:00:48,128 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-25 00:00:48,129 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-25 00:00:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:00:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-25 00:00:48,131 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-25 00:00:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:00:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-25 00:00:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-25 00:00:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-25 00:00:48,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-25 00:00:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-25 00:00:48,139 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-25 00:00:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-25 00:00:48,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-25 00:00:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-25 00:00:48,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-25 00:00:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2023-11-25 00:00:48,140 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2023-11-25 00:00:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-25 00:00:48,140 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-25 00:00:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-25 00:00:48,141 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-25 00:00:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_101 [2023-11-25 00:00:48,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_101 [2023-11-25 00:00:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-25 00:00:48,141 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-25 00:00:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rxtx [2023-11-25 00:00:48,142 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rxtx [2023-11-25 00:00:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure m80x_send_cmd_to_phy [2023-11-25 00:00:48,142 INFO L138 BoogieDeclarations]: Found implementation of procedure m80x_send_cmd_to_phy [2023-11-25 00:00:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:00:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffers [2023-11-25 00:00:48,142 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffers [2023-11-25 00:00:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-25 00:00:48,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-25 00:00:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-25 00:00:48,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-25 00:00:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-25 00:00:48,143 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-25 00:00:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-25 00:00:48,144 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-25 00:00:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:00:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-25 00:00:48,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-25 00:00:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2023-11-25 00:00:48,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2023-11-25 00:00:49,029 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:00:49,034 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:00:50,066 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-25 00:00:53,738 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-25 00:00:53,957 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:00:57,443 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:00:57,444 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:00:57,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:00:57 BoogieIcfgContainer [2023-11-25 00:00:57,447 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:00:57,450 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:00:57,451 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:00:57,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:00:57,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:00:42" (1/3) ... [2023-11-25 00:00:57,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666e46e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:00:57, skipping insertion in model container [2023-11-25 00:00:57,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (2/3) ... [2023-11-25 00:00:57,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666e46e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:00:57, skipping insertion in model container [2023-11-25 00:00:57,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:00:57" (3/3) ... [2023-11-25 00:00:57,462 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i [2023-11-25 00:00:57,488 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:00:57,488 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:00:57,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:00:57,620 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;@6f1ad8a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:00:57,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:00:57,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 1202 states, 705 states have (on average 1.2794326241134752) internal successors, (902), 721 states have internal predecessors, (902), 413 states have call successors, (413), 84 states have call predecessors, (413), 83 states have return successors, (407), 404 states have call predecessors, (407), 407 states have call successors, (407) [2023-11-25 00:00:57,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-25 00:00:57,688 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:57,689 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 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] [2023-11-25 00:00:57,690 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:00:57,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:57,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1462525281, now seen corresponding path program 1 times [2023-11-25 00:00:57,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:00:57,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400952071] [2023-11-25 00:00:57,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:57,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:00:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:58,792 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2023-11-25 00:00:58,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:00:58,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400952071] [2023-11-25 00:00:58,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400952071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:00:58,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:00:58,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:00:58,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587553650] [2023-11-25 00:00:58,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:00:58,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:00:58,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:00:58,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:00:58,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:00:58,848 INFO L87 Difference]: Start difference. First operand has 1202 states, 705 states have (on average 1.2794326241134752) internal successors, (902), 721 states have internal predecessors, (902), 413 states have call successors, (413), 84 states have call predecessors, (413), 83 states have return successors, (407), 404 states have call predecessors, (407), 407 states have call successors, (407) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-25 00:01:02,880 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 [] [2023-11-25 00:01:04,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:01:07,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:07,078 INFO L93 Difference]: Finished difference Result 3469 states and 5010 transitions. [2023-11-25 00:01:07,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:01:07,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 149 [2023-11-25 00:01:07,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:07,161 INFO L225 Difference]: With dead ends: 3469 [2023-11-25 00:01:07,162 INFO L226 Difference]: Without dead ends: 2195 [2023-11-25 00:01:07,181 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 [2023-11-25 00:01:07,185 INFO L413 NwaCegarLoop]: 1621 mSDtfsCounter, 1608 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 3013 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:07,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1608 Valid, 3013 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 577 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2023-11-25 00:01:07,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2023-11-25 00:01:07,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 2191. [2023-11-25 00:01:07,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 1305 states have (on average 1.2812260536398468) internal successors, (1672), 1337 states have internal predecessors, (1672), 726 states have call successors, (726), 161 states have call predecessors, (726), 159 states have return successors, (731), 715 states have call predecessors, (731), 726 states have call successors, (731) [2023-11-25 00:01:07,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 3129 transitions. [2023-11-25 00:01:07,497 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 3129 transitions. Word has length 149 [2023-11-25 00:01:07,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:07,498 INFO L495 AbstractCegarLoop]: Abstraction has 2191 states and 3129 transitions. [2023-11-25 00:01:07,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-25 00:01:07,499 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 3129 transitions. [2023-11-25 00:01:07,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-25 00:01:07,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:07,511 INFO L195 NwaCegarLoop]: trace histogram [11, 9, 9, 9, 9, 9, 9, 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] [2023-11-25 00:01:07,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:01:07,511 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:01:07,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:07,512 INFO L85 PathProgramCache]: Analyzing trace with hash -2091958717, now seen corresponding path program 1 times [2023-11-25 00:01:07,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:01:07,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956168915] [2023-11-25 00:01:07,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:07,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:01:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:08,204 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2023-11-25 00:01:08,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:01:08,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956168915] [2023-11-25 00:01:08,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956168915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:08,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:08,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:01:08,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217677049] [2023-11-25 00:01:08,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:08,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:01:08,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:01:08,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:01:08,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:08,219 INFO L87 Difference]: Start difference. First operand 2191 states and 3129 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-25 00:01:10,583 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 [] [2023-11-25 00:01:15,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:01:17,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:01:19,319 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 [] [2023-11-25 00:01:20,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:20,013 INFO L93 Difference]: Finished difference Result 5763 states and 8219 transitions. [2023-11-25 00:01:20,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:01:20,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 150 [2023-11-25 00:01:20,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:20,052 INFO L225 Difference]: With dead ends: 5763 [2023-11-25 00:01:20,052 INFO L226 Difference]: Without dead ends: 3591 [2023-11-25 00:01:20,064 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 [2023-11-25 00:01:20,066 INFO L413 NwaCegarLoop]: 1375 mSDtfsCounter, 1068 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 15 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 2707 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:20,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 2707 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 598 Invalid, 4 Unknown, 0 Unchecked, 11.5s Time] [2023-11-25 00:01:20,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3591 states. [2023-11-25 00:01:20,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3591 to 3587. [2023-11-25 00:01:20,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3587 states, 2160 states have (on average 1.2787037037037037) internal successors, (2762), 2209 states have internal predecessors, (2762), 1159 states have call successors, (1159), 269 states have call predecessors, (1159), 267 states have return successors, (1164), 1145 states have call predecessors, (1164), 1159 states have call successors, (1164) [2023-11-25 00:01:20,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3587 states to 3587 states and 5085 transitions. [2023-11-25 00:01:20,349 INFO L78 Accepts]: Start accepts. Automaton has 3587 states and 5085 transitions. Word has length 150 [2023-11-25 00:01:20,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:20,352 INFO L495 AbstractCegarLoop]: Abstraction has 3587 states and 5085 transitions. [2023-11-25 00:01:20,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-25 00:01:20,355 INFO L276 IsEmpty]: Start isEmpty. Operand 3587 states and 5085 transitions. [2023-11-25 00:01:20,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-25 00:01:20,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:20,365 INFO L195 NwaCegarLoop]: trace histogram [11, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 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] [2023-11-25 00:01:20,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:01:20,365 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:01:20,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:20,373 INFO L85 PathProgramCache]: Analyzing trace with hash 213382161, now seen corresponding path program 1 times [2023-11-25 00:01:20,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:01:20,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830347258] [2023-11-25 00:01:20,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:20,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:01:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-25 00:01:21,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:01:21,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830347258] [2023-11-25 00:01:21,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830347258] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:21,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:21,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:01:21,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967832810] [2023-11-25 00:01:21,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:21,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:01:21,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:01:21,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:01:21,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:21,093 INFO L87 Difference]: Start difference. First operand 3587 states and 5085 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-25 00:01:23,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:01:25,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:01:27,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:01:29,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:01:31,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []