./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_70035e68-438e-4867-9240-c54754815fec/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70035e68-438e-4867-9240-c54754815fec/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70035e68-438e-4867-9240-c54754815fec/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70035e68-438e-4867-9240-c54754815fec/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70035e68-438e-4867-9240-c54754815fec/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70035e68-438e-4867-9240-c54754815fec/bin/utaipan-verify-NcY6lQBIFX --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 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:48:19,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:48:20,031 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70035e68-438e-4867-9240-c54754815fec/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:48:20,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:48:20,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:48:20,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:48:20,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:48:20,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:48:20,085 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:48:20,090 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:48:20,090 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:48:20,091 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:48:20,091 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:48:20,093 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:48:20,094 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:48:20,094 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:48:20,095 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:48:20,095 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:48:20,096 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:48:20,096 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:48:20,097 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:48:20,097 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:48:20,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:48:20,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:48:20,099 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:48:20,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:48:20,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:48:20,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:48:20,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:48:20,101 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:48:20,103 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:48:20,103 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:48:20,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:48:20,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:20,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:48:20,104 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:48:20,104 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:48:20,105 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:48:20,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:48:20,105 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:48:20,105 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:48:20,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:48:20,106 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_70035e68-438e-4867-9240-c54754815fec/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70035e68-438e-4867-9240-c54754815fec/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2023-11-12 00:48:20,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:48:20,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:48:20,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:48:20,477 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:48:20,478 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:48:20,480 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70035e68-438e-4867-9240-c54754815fec/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-12 00:48:23,790 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:48:24,506 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:48:24,507 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70035e68-438e-4867-9240-c54754815fec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-12 00:48:24,556 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70035e68-438e-4867-9240-c54754815fec/bin/utaipan-verify-NcY6lQBIFX/data/add22fe68/d3dfd8153e8f46529bc9efed8ce0ca0f/FLAGd0836462e [2023-11-12 00:48:24,573 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70035e68-438e-4867-9240-c54754815fec/bin/utaipan-verify-NcY6lQBIFX/data/add22fe68/d3dfd8153e8f46529bc9efed8ce0ca0f [2023-11-12 00:48:24,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:48:24,581 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:48:24,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:24,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:48:24,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:48:24,590 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:24" (1/1) ... [2023-11-12 00:48:24,591 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1b4c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:24, skipping insertion in model container [2023-11-12 00:48:24,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:24" (1/1) ... [2023-11-12 00:48:24,799 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:48:28,182 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_70035e68-438e-4867-9240-c54754815fec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2023-11-12 00:48:28,190 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_70035e68-438e-4867-9240-c54754815fec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2023-11-12 00:48:28,190 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_70035e68-438e-4867-9240-c54754815fec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2023-11-12 00:48:28,191 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_70035e68-438e-4867-9240-c54754815fec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2023-11-12 00:48:28,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:28,302 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:48:28,440 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"); [5252] [2023-11-12 00:48:28,442 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)); [5259] [2023-11-12 00:48:28,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5266] [2023-11-12 00:48:28,445 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/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5302-5303] [2023-11-12 00:48:28,446 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"); [5308-5310] [2023-11-12 00:48:28,459 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)); [5526-5527] [2023-11-12 00:48:28,463 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)); [5560-5561] [2023-11-12 00:48:28,666 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7910] [2023-11-12 00:48:28,761 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_70035e68-438e-4867-9240-c54754815fec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2023-11-12 00:48:28,762 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_70035e68-438e-4867-9240-c54754815fec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2023-11-12 00:48:28,763 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_70035e68-438e-4867-9240-c54754815fec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2023-11-12 00:48:28,764 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_70035e68-438e-4867-9240-c54754815fec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2023-11-12 00:48:28,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:28,994 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:48:28,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:28 WrapperNode [2023-11-12 00:48:28,995 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:28,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:28,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:48:28,997 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:48:29,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:28" (1/1) ... [2023-11-12 00:48:29,195 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:28" (1/1) ... [2023-11-12 00:48:29,409 INFO L138 Inliner]: procedures = 430, calls = 1731, calls flagged for inlining = 202, calls inlined = 186, statements flattened = 4773 [2023-11-12 00:48:29,410 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:29,411 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:48:29,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:48:29,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:48:29,422 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:28" (1/1) ... [2023-11-12 00:48:29,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:28" (1/1) ... [2023-11-12 00:48:29,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:28" (1/1) ... [2023-11-12 00:48:29,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:28" (1/1) ... [2023-11-12 00:48:29,608 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:28" (1/1) ... [2023-11-12 00:48:29,630 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:28" (1/1) ... [2023-11-12 00:48:29,653 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:28" (1/1) ... [2023-11-12 00:48:29,678 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:28" (1/1) ... [2023-11-12 00:48:29,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:48:29,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:48:29,716 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:48:29,716 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:48:29,717 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:28" (1/1) ... [2023-11-12 00:48:29,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:29,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70035e68-438e-4867-9240-c54754815fec/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:48:29,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70035e68-438e-4867-9240-c54754815fec/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:48:29,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70035e68-438e-4867-9240-c54754815fec/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:48:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-12 00:48:29,799 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-12 00:48:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-12 00:48:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-12 00:48:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:48:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:48:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 00:48:29,801 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 00:48:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:48:29,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:48:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-12 00:48:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-12 00:48:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2023-11-12 00:48:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2023-11-12 00:48:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:48:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:48:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 00:48:29,806 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 00:48:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-12 00:48:29,806 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-12 00:48:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2023-11-12 00:48:29,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2023-11-12 00:48:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-12 00:48:29,807 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-12 00:48:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-12 00:48:29,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-12 00:48:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-12 00:48:29,808 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-12 00:48:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2023-11-12 00:48:29,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2023-11-12 00:48:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2023-11-12 00:48:29,808 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2023-11-12 00:48:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:48:29,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:48:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-12 00:48:29,809 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-12 00:48:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-12 00:48:29,809 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-12 00:48:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-12 00:48:29,810 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-12 00:48:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:48:29,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:48:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-12 00:48:29,810 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-12 00:48:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:48:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2023-11-12 00:48:29,811 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2023-11-12 00:48:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2023-11-12 00:48:29,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2023-11-12 00:48:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 00:48:29,813 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 00:48:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-12 00:48:29,814 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-12 00:48:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:48:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 00:48:29,814 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 00:48:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2023-11-12 00:48:29,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2023-11-12 00:48:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:48:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:48:29,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:48:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:48:29,816 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 00:48:29,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 00:48:29,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:48:29,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:48:29,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-12 00:48:29,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-12 00:48:29,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 00:48:29,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 00:48:29,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-12 00:48:29,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-12 00:48:29,818 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-12 00:48:29,819 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-12 00:48:29,819 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-12 00:48:29,820 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-12 00:48:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-12 00:48:29,820 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-12 00:48:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2023-11-12 00:48:29,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2023-11-12 00:48:29,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:48:29,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:48:29,821 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2023-11-12 00:48:29,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2023-11-12 00:48:29,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:48:29,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-12 00:48:29,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-12 00:48:29,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 00:48:29,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 00:48:29,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:48:29,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:48:29,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:48:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 00:48:29,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 00:48:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:48:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-12 00:48:29,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-12 00:48:29,824 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:48:29,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:48:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2023-11-12 00:48:29,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2023-11-12 00:48:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:48:29,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:48:29,826 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-12 00:48:29,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-12 00:48:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:48:29,827 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:48:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-12 00:48:29,828 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-12 00:48:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-12 00:48:29,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-12 00:48:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2023-11-12 00:48:29,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2023-11-12 00:48:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2023-11-12 00:48:29,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2023-11-12 00:48:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-12 00:48:29,829 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-12 00:48:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-12 00:48:29,829 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-12 00:48:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2023-11-12 00:48:29,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2023-11-12 00:48:29,830 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-12 00:48:29,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-12 00:48:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:48:29,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:48:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2023-11-12 00:48:29,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2023-11-12 00:48:29,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:48:29,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:48:29,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:48:29,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:48:29,834 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2023-11-12 00:48:29,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2023-11-12 00:48:29,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:48:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:48:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-12 00:48:29,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-12 00:48:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 00:48:29,840 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 00:48:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-12 00:48:29,841 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-12 00:48:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 00:48:29,843 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 00:48:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2023-11-12 00:48:29,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2023-11-12 00:48:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2023-11-12 00:48:29,849 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2023-11-12 00:48:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:48:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-12 00:48:29,850 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-12 00:48:29,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:48:29,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_ipg_nic_private [2023-11-12 00:48:29,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_ipg_nic_private [2023-11-12 00:48:29,850 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2023-11-12 00:48:29,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2023-11-12 00:48:29,851 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2023-11-12 00:48:29,851 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2023-11-12 00:48:29,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:48:29,851 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:48:29,852 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:48:29,852 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-12 00:48:29,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-12 00:48:29,852 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-12 00:48:29,852 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-12 00:48:29,852 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 00:48:29,853 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 00:48:29,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:48:29,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:48:29,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-12 00:48:29,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-12 00:48:29,853 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-12 00:48:29,853 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-12 00:48:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2023-11-12 00:48:29,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2023-11-12 00:48:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2023-11-12 00:48:29,854 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2023-11-12 00:48:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-12 00:48:29,854 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-12 00:48:29,855 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-12 00:48:29,855 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-12 00:48:29,855 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 00:48:29,855 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 00:48:29,855 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-12 00:48:29,855 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-12 00:48:29,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:48:29,856 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-12 00:48:29,856 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-12 00:48:29,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:48:29,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:48:29,856 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2023-11-12 00:48:29,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2023-11-12 00:48:29,857 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2023-11-12 00:48:29,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2023-11-12 00:48:29,857 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2023-11-12 00:48:29,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2023-11-12 00:48:29,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-12 00:48:29,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-12 00:48:29,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2023-11-12 00:48:29,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2023-11-12 00:48:29,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:48:29,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:48:29,858 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2023-11-12 00:48:29,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2023-11-12 00:48:29,859 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-12 00:48:29,859 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-12 00:48:29,859 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-12 00:48:29,859 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-12 00:48:29,859 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-11-12 00:48:29,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:48:29,860 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2023-11-12 00:48:29,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2023-11-12 00:48:29,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:48:29,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:48:30,772 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:48:30,777 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:48:32,281 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:48:37,898 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 00:48:38,031 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:48:41,851 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:48:41,852 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:48:41,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:41 BoogieIcfgContainer [2023-11-12 00:48:41,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:48:41,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:48:41,864 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:48:41,868 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:48:41,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:48:24" (1/3) ... [2023-11-12 00:48:41,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37dc8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:41, skipping insertion in model container [2023-11-12 00:48:41,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:28" (2/3) ... [2023-11-12 00:48:41,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37dc8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:41, skipping insertion in model container [2023-11-12 00:48:41,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:41" (3/3) ... [2023-11-12 00:48:41,874 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-12 00:48:41,901 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:48:41,901 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-12 00:48:42,047 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:48:42,057 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;@289dc971, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:48:42,057 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-12 00:48:42,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 1355 states, 784 states have (on average 1.2704081632653061) internal successors, (996), 814 states have internal predecessors, (996), 473 states have call successors, (473), 98 states have call predecessors, (473), 97 states have return successors, (467), 464 states have call predecessors, (467), 467 states have call successors, (467) [2023-11-12 00:48:42,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-12 00:48:42,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:42,101 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:42,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:48:42,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:42,110 INFO L85 PathProgramCache]: Analyzing trace with hash -854933239, now seen corresponding path program 1 times [2023-11-12 00:48:42,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:42,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706505092] [2023-11-12 00:48:42,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:42,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:43,261 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-12 00:48:43,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:43,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706505092] [2023-11-12 00:48:43,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706505092] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:43,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:43,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:48:43,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349240613] [2023-11-12 00:48:43,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:43,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:48:43,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:43,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:48:43,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:43,337 INFO L87 Difference]: Start difference. First operand has 1355 states, 784 states have (on average 1.2704081632653061) internal successors, (996), 814 states have internal predecessors, (996), 473 states have call successors, (473), 98 states have call predecessors, (473), 97 states have return successors, (467), 464 states have call predecessors, (467), 467 states have call successors, (467) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-12 00:48:49,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:49,140 INFO L93 Difference]: Finished difference Result 3945 states and 5694 transitions. [2023-11-12 00:48:49,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:48:49,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2023-11-12 00:48:49,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:49,203 INFO L225 Difference]: With dead ends: 3945 [2023-11-12 00:48:49,204 INFO L226 Difference]: Without dead ends: 2597 [2023-11-12 00:48:49,222 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 [2023-11-12 00:48:49,226 INFO L413 NwaCegarLoop]: 1653 mSDtfsCounter, 1810 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 3262 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:49,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 3262 Invalid, 573 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-12 00:48:49,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2023-11-12 00:48:49,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2593. [2023-11-12 00:48:49,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2593 states, 1510 states have (on average 1.2629139072847682) internal successors, (1907), 1567 states have internal predecessors, (1907), 890 states have call successors, (890), 191 states have call predecessors, (890), 190 states have return successors, (886), 880 states have call predecessors, (886), 886 states have call successors, (886) [2023-11-12 00:48:49,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2593 states to 2593 states and 3683 transitions. [2023-11-12 00:48:49,648 INFO L78 Accepts]: Start accepts. Automaton has 2593 states and 3683 transitions. Word has length 101 [2023-11-12 00:48:49,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:49,650 INFO L495 AbstractCegarLoop]: Abstraction has 2593 states and 3683 transitions. [2023-11-12 00:48:49,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-12 00:48:49,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2593 states and 3683 transitions. [2023-11-12 00:48:49,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-12 00:48:49,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:49,666 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:49,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:48:49,668 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:48:49,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:49,669 INFO L85 PathProgramCache]: Analyzing trace with hash -515938408, now seen corresponding path program 1 times [2023-11-12 00:48:49,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:49,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744162042] [2023-11-12 00:48:49,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:49,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:50,079 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-12 00:48:50,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:50,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744162042] [2023-11-12 00:48:50,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744162042] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:50,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:50,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:48:50,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825324350] [2023-11-12 00:48:50,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:50,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:48:50,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:50,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:48:50,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:50,085 INFO L87 Difference]: Start difference. First operand 2593 states and 3683 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 00:48:54,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:54,722 INFO L93 Difference]: Finished difference Result 7137 states and 10119 transitions. [2023-11-12 00:48:54,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:48:54,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 105 [2023-11-12 00:48:54,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:54,784 INFO L225 Difference]: With dead ends: 7137 [2023-11-12 00:48:54,785 INFO L226 Difference]: Without dead ends: 4561 [2023-11-12 00:48:54,805 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 [2023-11-12 00:48:54,806 INFO L413 NwaCegarLoop]: 1713 mSDtfsCounter, 1451 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 3298 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:54,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1451 Valid, 3298 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-12 00:48:54,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4561 states. [2023-11-12 00:48:55,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4561 to 4532. [2023-11-12 00:48:55,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4532 states, 2613 states have (on average 1.2537313432835822) internal successors, (3276), 2717 states have internal predecessors, (3276), 1563 states have call successors, (1563), 360 states have call predecessors, (1563), 353 states have return successors, (1579), 1530 states have call predecessors, (1579), 1559 states have call successors, (1579) [2023-11-12 00:48:55,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4532 states to 4532 states and 6418 transitions. [2023-11-12 00:48:55,235 INFO L78 Accepts]: Start accepts. Automaton has 4532 states and 6418 transitions. Word has length 105 [2023-11-12 00:48:55,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:55,236 INFO L495 AbstractCegarLoop]: Abstraction has 4532 states and 6418 transitions. [2023-11-12 00:48:55,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 00:48:55,237 INFO L276 IsEmpty]: Start isEmpty. Operand 4532 states and 6418 transitions. [2023-11-12 00:48:55,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-12 00:48:55,247 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:55,247 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 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] [2023-11-12 00:48:55,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:48:55,248 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:48:55,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:55,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1129792742, now seen corresponding path program 1 times [2023-11-12 00:48:55,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:55,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508108813] [2023-11-12 00:48:55,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:55,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:56,199 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2023-11-12 00:48:56,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:56,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508108813] [2023-11-12 00:48:56,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508108813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:56,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:56,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 00:48:56,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062376439] [2023-11-12 00:48:56,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:56,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:48:56,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:56,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:48:56,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:48:56,212 INFO L87 Difference]: Start difference. First operand 4532 states and 6418 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-12 00:49:02,147 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 [] [2023-11-12 00:49:06,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:06,795 INFO L93 Difference]: Finished difference Result 11596 states and 16344 transitions. [2023-11-12 00:49:06,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:49:06,796 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 143 [2023-11-12 00:49:06,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:06,856 INFO L225 Difference]: With dead ends: 11596 [2023-11-12 00:49:06,856 INFO L226 Difference]: Without dead ends: 7081 [2023-11-12 00:49:06,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:49:06,966 INFO L413 NwaCegarLoop]: 2481 mSDtfsCounter, 4425 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 2407 mSolverCounterSat, 957 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4545 SdHoareTripleChecker+Valid, 5067 SdHoareTripleChecker+Invalid, 3365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 957 IncrementalHoareTripleChecker+Valid, 2407 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:06,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4545 Valid, 5067 Invalid, 3365 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [957 Valid, 2407 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2023-11-12 00:49:06,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7081 states.