./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-mutex_drivers-net-ethernet-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:17:30,946 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:17:31,031 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:17:31,036 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:17:31,036 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:17:31,061 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:17:31,062 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:17:31,063 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:17:31,064 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:17:31,065 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:17:31,065 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:17:31,066 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:17:31,067 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:17:31,067 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:17:31,068 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:17:31,069 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:17:31,069 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:17:31,070 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:17:31,070 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:17:31,071 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:17:31,072 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:17:31,072 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:17:31,073 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:17:31,074 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:17:31,074 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:17:31,075 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:17:31,075 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:17:31,076 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:17:31,076 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:17:31,077 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:17:31,077 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:17:31,078 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:17:31,078 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:17:31,078 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:17:31,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:17:31,079 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:17:31,079 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:17:31,080 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:17:31,080 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:17:31,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:17:31,080 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:17:31,081 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:17:31,081 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:17:31,082 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:17:31,082 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_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 [2023-11-23 21:17:31,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:17:31,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:17:31,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:17:31,480 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:17:31,481 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:17:31,482 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-23 21:17:34,594 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:17:35,289 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:17:35,290 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-23 21:17:35,348 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/bin/utaipan-verify-mE87zJ7Ire/data/603ae8343/1dc357931d7944f398f2ac48a7a8829b/FLAGd349626c5 [2023-11-23 21:17:35,369 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/bin/utaipan-verify-mE87zJ7Ire/data/603ae8343/1dc357931d7944f398f2ac48a7a8829b [2023-11-23 21:17:35,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:17:35,378 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:17:35,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:17:35,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:17:35,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:17:35,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:17:35" (1/1) ... [2023-11-23 21:17:35,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b3051b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:35, skipping insertion in model container [2023-11-23 21:17:35,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:17:35" (1/1) ... [2023-11-23 21:17:35,597 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:17:38,057 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_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2023-11-23 21:17:38,062 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_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2023-11-23 21:17:38,063 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_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2023-11-23 21:17:38,063 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_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2023-11-23 21:17:38,087 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:17:38,124 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:17:38,233 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"); [5267] [2023-11-23 21:17:38,236 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)); [5274] [2023-11-23 21:17:38,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5281] [2023-11-23 21:17:38,239 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/d4e00c1/linux-kernel-locking-mutex/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5325-5326] [2023-11-23 21:17:38,239 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"); [5331-5333] [2023-11-23 21:17:38,305 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)); [5529-5530] [2023-11-23 21:17:38,309 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)); [5563-5564] [2023-11-23 21:17:38,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7915] [2023-11-23 21:17:38,531 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_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2023-11-23 21:17:38,532 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_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2023-11-23 21:17:38,533 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_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2023-11-23 21:17:38,534 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_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2023-11-23 21:17:38,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:17:38,755 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:17:38,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:38 WrapperNode [2023-11-23 21:17:38,756 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:17:38,758 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:17:38,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:17:38,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:17:38,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:38" (1/1) ... [2023-11-23 21:17:38,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:38" (1/1) ... [2023-11-23 21:17:39,151 INFO L138 Inliner]: procedures = 357, calls = 1584, calls flagged for inlining = 198, calls inlined = 187, statements flattened = 4774 [2023-11-23 21:17:39,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:17:39,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:17:39,153 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:17:39,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:17:39,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:38" (1/1) ... [2023-11-23 21:17:39,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:38" (1/1) ... [2023-11-23 21:17:39,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:38" (1/1) ... [2023-11-23 21:17:39,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:38" (1/1) ... [2023-11-23 21:17:39,342 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:38" (1/1) ... [2023-11-23 21:17:39,368 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:38" (1/1) ... [2023-11-23 21:17:39,393 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:38" (1/1) ... [2023-11-23 21:17:39,419 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:38" (1/1) ... [2023-11-23 21:17:39,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:17:39,453 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:17:39,453 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:17:39,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:17:39,454 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:38" (1/1) ... [2023-11-23 21:17:39,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:17:39,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:17:39,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:17:39,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3bac5c8-9132-4f0c-9dc8-7fe75e8cf09d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:17:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2023-11-23 21:17:39,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2023-11-23 21:17:39,537 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-23 21:17:39,537 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-23 21:17:39,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:17:39,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:17:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:17:39,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:17:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 21:17:39,539 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 21:17:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2023-11-23 21:17:39,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2023-11-23 21:17:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:17:39,541 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:17:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:17:39,543 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:17:39,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:17:39,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:17:39,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2023-11-23 21:17:39,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2023-11-23 21:17:39,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-23 21:17:39,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-23 21:17:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 21:17:39,545 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 21:17:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2023-11-23 21:17:39,545 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2023-11-23 21:17:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 21:17:39,545 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 21:17:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:17:39,546 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:17:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-23 21:17:39,546 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-23 21:17:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2023-11-23 21:17:39,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2023-11-23 21:17:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-23 21:17:39,547 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-23 21:17:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-23 21:17:39,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-23 21:17:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:17:39,548 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:17:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-23 21:17:39,548 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-23 21:17:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:17:39,548 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:17:39,549 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2023-11-23 21:17:39,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2023-11-23 21:17:39,549 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2023-11-23 21:17:39,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2023-11-23 21:17:39,549 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2023-11-23 21:17:39,550 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2023-11-23 21:17:39,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:17:39,550 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 21:17:39,550 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 21:17:39,550 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2023-11-23 21:17:39,550 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2023-11-23 21:17:39,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:17:39,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:17:39,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:17:39,551 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-23 21:17:39,551 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-23 21:17:39,552 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-23 21:17:39,552 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-23 21:17:39,552 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 21:17:39,552 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 21:17:39,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:17:39,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:17:39,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-23 21:17:39,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-23 21:17:39,553 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2023-11-23 21:17:39,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2023-11-23 21:17:39,553 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 21:17:39,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 21:17:39,554 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2023-11-23 21:17:39,554 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2023-11-23 21:17:39,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:17:39,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:17:39,554 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:17:39,555 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:17:39,555 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-23 21:17:39,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-23 21:17:39,555 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2023-11-23 21:17:39,555 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2023-11-23 21:17:39,556 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:17:39,556 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:17:39,556 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2023-11-23 21:17:39,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2023-11-23 21:17:39,556 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:17:39,556 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:17:39,557 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-23 21:17:39,557 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-23 21:17:39,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:17:39,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:17:39,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-23 21:17:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-23 21:17:39,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:17:39,558 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-23 21:17:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-23 21:17:39,558 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:17:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:17:39,559 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2023-11-23 21:17:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2023-11-23 21:17:39,559 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2023-11-23 21:17:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2023-11-23 21:17:39,559 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2023-11-23 21:17:39,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2023-11-23 21:17:39,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:17:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:17:39,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:17:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-23 21:17:39,561 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-23 21:17:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:17:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-23 21:17:39,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-23 21:17:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-23 21:17:39,562 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-23 21:17:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:17:39,562 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:17:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:17:39,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:17:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:17:39,563 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:17:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-23 21:17:39,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-23 21:17:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 21:17:39,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 21:17:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:17:39,564 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:17:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-23 21:17:39,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-23 21:17:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-23 21:17:39,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-23 21:17:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-23 21:17:39,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-23 21:17:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-23 21:17:39,566 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-23 21:17:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:17:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 21:17:39,566 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 21:17:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-23 21:17:39,567 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-23 21:17:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:17:39,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:17:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2023-11-23 21:17:39,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2023-11-23 21:17:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2023-11-23 21:17:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2023-11-23 21:17:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2023-11-23 21:17:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2023-11-23 21:17:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2023-11-23 21:17:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2023-11-23 21:17:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:17:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2023-11-23 21:17:39,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2023-11-23 21:17:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 21:17:39,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 21:17:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 21:17:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 21:17:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2023-11-23 21:17:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2023-11-23 21:17:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:17:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:17:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:17:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:17:39,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:17:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:17:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-23 21:17:39,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-23 21:17:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-23 21:17:39,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-23 21:17:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:17:39,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:17:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2023-11-23 21:17:39,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2023-11-23 21:17:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:17:39,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:17:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-23 21:17:39,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-23 21:17:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:17:39,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:17:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2023-11-23 21:17:39,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2023-11-23 21:17:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-23 21:17:39,574 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-23 21:17:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:17:39,574 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:17:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 21:17:39,575 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 21:17:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 21:17:39,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 21:17:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2023-11-23 21:17:39,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2023-11-23 21:17:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2023-11-23 21:17:39,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2023-11-23 21:17:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-23 21:17:39,576 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-23 21:17:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-23 21:17:39,576 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-23 21:17:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 21:17:39,577 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 21:17:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-11-23 21:17:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:17:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2023-11-23 21:17:39,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2023-11-23 21:17:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 21:17:39,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 21:17:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2023-11-23 21:17:39,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2023-11-23 21:17:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-23 21:17:39,579 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-23 21:17:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:17:39,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:17:40,444 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:17:40,449 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:17:41,447 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:17:45,683 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 21:17:45,813 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:17:48,360 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:17:48,361 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:17:48,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:48 BoogieIcfgContainer [2023-11-23 21:17:48,363 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:17:48,365 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:17:48,366 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:17:48,369 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:17:48,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:17:35" (1/3) ... [2023-11-23 21:17:48,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8bb393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:48, skipping insertion in model container [2023-11-23 21:17:48,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:38" (2/3) ... [2023-11-23 21:17:48,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8bb393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:48, skipping insertion in model container [2023-11-23 21:17:48,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:48" (3/3) ... [2023-11-23 21:17:48,372 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-23 21:17:48,392 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:17:48,393 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-23 21:17:48,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:17:48,514 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;@5a4f0c12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:17:48,515 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-23 21:17:48,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 1337 states, 781 states have (on average 1.2714468629961588) internal successors, (993), 811 states have internal predecessors, (993), 459 states have call successors, (459), 97 states have call predecessors, (459), 96 states have return successors, (453), 450 states have call predecessors, (453), 453 states have call successors, (453) [2023-11-23 21:17:48,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-23 21:17:48,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:48,563 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] [2023-11-23 21:17:48,563 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:17:48,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:48,571 INFO L85 PathProgramCache]: Analyzing trace with hash -41798670, now seen corresponding path program 1 times [2023-11-23 21:17:48,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:48,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190521493] [2023-11-23 21:17:48,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:48,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:49,512 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-23 21:17:49,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:49,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190521493] [2023-11-23 21:17:49,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190521493] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:49,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:49,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:17:49,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816383070] [2023-11-23 21:17:49,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:49,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:17:49,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:49,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:17:49,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:49,561 INFO L87 Difference]: Start difference. First operand has 1337 states, 781 states have (on average 1.2714468629961588) internal successors, (993), 811 states have internal predecessors, (993), 459 states have call successors, (459), 97 states have call predecessors, (459), 96 states have return successors, (453), 450 states have call predecessors, (453), 453 states have call successors, (453) 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) [2023-11-23 21:17:53,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:53,655 INFO L93 Difference]: Finished difference Result 3899 states and 5617 transitions. [2023-11-23 21:17:53,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:17:53,658 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 [2023-11-23 21:17:53,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:53,706 INFO L225 Difference]: With dead ends: 3899 [2023-11-23 21:17:53,707 INFO L226 Difference]: Without dead ends: 2569 [2023-11-23 21:17:53,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:53,726 INFO L413 NwaCegarLoop]: 1623 mSDtfsCounter, 1795 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:53,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1795 Valid, 3202 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-23 21:17:53,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2023-11-23 21:17:54,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 2565. [2023-11-23 21:17:54,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2565 states, 1504 states have (on average 1.2639627659574468) internal successors, (1901), 1561 states have internal predecessors, (1901), 870 states have call successors, (870), 189 states have call predecessors, (870), 188 states have return successors, (866), 860 states have call predecessors, (866), 866 states have call successors, (866) [2023-11-23 21:17:54,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2565 states to 2565 states and 3637 transitions. [2023-11-23 21:17:54,123 INFO L78 Accepts]: Start accepts. Automaton has 2565 states and 3637 transitions. Word has length 101 [2023-11-23 21:17:54,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:54,124 INFO L495 AbstractCegarLoop]: Abstraction has 2565 states and 3637 transitions. [2023-11-23 21:17:54,125 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) [2023-11-23 21:17:54,125 INFO L276 IsEmpty]: Start isEmpty. Operand 2565 states and 3637 transitions. [2023-11-23 21:17:54,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-23 21:17:54,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:54,131 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] [2023-11-23 21:17:54,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:17:54,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:17:54,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:54,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1990465507, now seen corresponding path program 1 times [2023-11-23 21:17:54,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:54,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395171494] [2023-11-23 21:17:54,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:54,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:54,529 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-23 21:17:54,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:54,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395171494] [2023-11-23 21:17:54,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395171494] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:54,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:54,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:17:54,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540839853] [2023-11-23 21:17:54,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:54,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:17:54,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:54,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:17:54,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:54,534 INFO L87 Difference]: Start difference. First operand 2565 states and 3637 transitions. 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) [2023-11-23 21:17:57,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:57,776 INFO L93 Difference]: Finished difference Result 7471 states and 10563 transitions. [2023-11-23 21:17:57,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:17:57,777 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 [2023-11-23 21:17:57,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:57,826 INFO L225 Difference]: With dead ends: 7471 [2023-11-23 21:17:57,826 INFO L226 Difference]: Without dead ends: 4923 [2023-11-23 21:17:57,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:57,843 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 1697 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:57,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 3152 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-23 21:17:57,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4923 states. [2023-11-23 21:17:58,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4923 to 4902. [2023-11-23 21:17:58,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4902 states, 2867 states have (on average 1.2556679455877224) internal successors, (3600), 2977 states have internal predecessors, (3600), 1661 states have call successors, (1661), 374 states have call predecessors, (1661), 371 states have return successors, (1659), 1636 states have call predecessors, (1659), 1657 states have call successors, (1659) [2023-11-23 21:17:58,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4902 states to 4902 states and 6920 transitions. [2023-11-23 21:17:58,366 INFO L78 Accepts]: Start accepts. Automaton has 4902 states and 6920 transitions. Word has length 101 [2023-11-23 21:17:58,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:58,367 INFO L495 AbstractCegarLoop]: Abstraction has 4902 states and 6920 transitions. [2023-11-23 21:17:58,367 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) [2023-11-23 21:17:58,367 INFO L276 IsEmpty]: Start isEmpty. Operand 4902 states and 6920 transitions. [2023-11-23 21:17:58,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-23 21:17:58,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:58,372 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:58,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:17:58,372 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:17:58,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:58,382 INFO L85 PathProgramCache]: Analyzing trace with hash 2118335335, now seen corresponding path program 1 times [2023-11-23 21:17:58,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:58,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499583594] [2023-11-23 21:17:58,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:58,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:58,702 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-23 21:17:58,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:58,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499583594] [2023-11-23 21:17:58,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499583594] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:58,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:58,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:17:58,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638584122] [2023-11-23 21:17:58,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:58,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:17:58,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:58,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:17:58,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:58,714 INFO L87 Difference]: Start difference. First operand 4902 states and 6920 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 21:18:02,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:02,639 INFO L93 Difference]: Finished difference Result 9585 states and 13523 transitions. [2023-11-23 21:18:02,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:18:02,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2023-11-23 21:18:02,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:02,678 INFO L225 Difference]: With dead ends: 9585 [2023-11-23 21:18:02,679 INFO L226 Difference]: Without dead ends: 4700 [2023-11-23 21:18:02,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:18:02,703 INFO L413 NwaCegarLoop]: 2024 mSDtfsCounter, 1315 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 3577 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:02,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 3577 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-23 21:18:02,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4700 states. [2023-11-23 21:18:02,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4700 to 4681. [2023-11-23 21:18:02,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4681 states, 2773 states have (on average 1.2517129462675802) internal successors, (3471), 2874 states have internal predecessors, (3471), 1548 states have call successors, (1548), 361 states have call predecessors, (1548), 357 states have return successors, (1545), 1522 states have call predecessors, (1545), 1544 states have call successors, (1545) [2023-11-23 21:18:02,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4681 states to 4681 states and 6564 transitions. [2023-11-23 21:18:02,996 INFO L78 Accepts]: Start accepts. Automaton has 4681 states and 6564 transitions. Word has length 112 [2023-11-23 21:18:02,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:02,997 INFO L495 AbstractCegarLoop]: Abstraction has 4681 states and 6564 transitions. [2023-11-23 21:18:02,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 21:18:02,998 INFO L276 IsEmpty]: Start isEmpty. Operand 4681 states and 6564 transitions. [2023-11-23 21:18:03,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-23 21:18:03,002 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:03,002 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 4, 4, 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] [2023-11-23 21:18:03,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:18:03,003 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:18:03,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:03,004 INFO L85 PathProgramCache]: Analyzing trace with hash 201678104, now seen corresponding path program 1 times [2023-11-23 21:18:03,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:03,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551500127] [2023-11-23 21:18:03,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:03,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:03,820 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-11-23 21:18:03,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:03,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551500127] [2023-11-23 21:18:03,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551500127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:03,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:03,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:18:03,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61210602] [2023-11-23 21:18:03,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:03,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:18:03,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:03,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:18:03,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:18:03,824 INFO L87 Difference]: Start difference. First operand 4681 states and 6564 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:18:07,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:07,563 INFO L93 Difference]: Finished difference Result 4687 states and 6569 transitions. [2023-11-23 21:18:07,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:18:07,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2023-11-23 21:18:07,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:07,610 INFO L225 Difference]: With dead ends: 4687 [2023-11-23 21:18:07,610 INFO L226 Difference]: Without dead ends: 4685 [2023-11-23 21:18:07,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:18:07,620 INFO L413 NwaCegarLoop]: 1592 mSDtfsCounter, 1831 mSDsluCounter, 3178 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1834 SdHoareTripleChecker+Valid, 4770 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:07,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1834 Valid, 4770 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-23 21:18:07,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4685 states. [2023-11-23 21:18:07,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4685 to 4685. [2023-11-23 21:18:08,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4685 states, 2776 states have (on average 1.2514409221902016) internal successors, (3474), 2877 states have internal predecessors, (3474), 1548 states have call successors, (1548), 362 states have call predecessors, (1548), 358 states have return successors, (1545), 1522 states have call predecessors, (1545), 1544 states have call successors, (1545) [2023-11-23 21:18:08,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4685 states to 4685 states and 6567 transitions. [2023-11-23 21:18:08,044 INFO L78 Accepts]: Start accepts. Automaton has 4685 states and 6567 transitions. Word has length 143 [2023-11-23 21:18:08,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:08,046 INFO L495 AbstractCegarLoop]: Abstraction has 4685 states and 6567 transitions. [2023-11-23 21:18:08,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:18:08,047 INFO L276 IsEmpty]: Start isEmpty. Operand 4685 states and 6567 transitions. [2023-11-23 21:18:08,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-23 21:18:08,052 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:08,053 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 4, 4, 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] [2023-11-23 21:18:08,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:18:08,053 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:18:08,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:08,054 INFO L85 PathProgramCache]: Analyzing trace with hash 2019135461, now seen corresponding path program 1 times [2023-11-23 21:18:08,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:08,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829311515] [2023-11-23 21:18:08,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:08,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:08,851 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-11-23 21:18:08,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:08,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829311515] [2023-11-23 21:18:08,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829311515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:08,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:08,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:18:08,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080833805] [2023-11-23 21:18:08,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:08,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:18:08,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:08,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:18:08,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:18:08,855 INFO L87 Difference]: Start difference. First operand 4685 states and 6567 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-23 21:18:12,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:12,771 INFO L93 Difference]: Finished difference Result 4691 states and 6572 transitions. [2023-11-23 21:18:12,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:18:12,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 148 [2023-11-23 21:18:12,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:12,813 INFO L225 Difference]: With dead ends: 4691 [2023-11-23 21:18:12,814 INFO L226 Difference]: Without dead ends: 4689 [2023-11-23 21:18:12,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:18:12,818 INFO L413 NwaCegarLoop]: 1595 mSDtfsCounter, 1826 mSDsluCounter, 3178 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1828 SdHoareTripleChecker+Valid, 4773 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:12,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1828 Valid, 4773 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-23 21:18:12,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4689 states. [2023-11-23 21:18:13,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4689 to 4689. [2023-11-23 21:18:13,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4689 states, 2779 states have (on average 1.2511694854264124) internal successors, (3477), 2880 states have internal predecessors, (3477), 1548 states have call successors, (1548), 363 states have call predecessors, (1548), 359 states have return successors, (1545), 1522 states have call predecessors, (1545), 1544 states have call successors, (1545) [2023-11-23 21:18:13,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4689 states to 4689 states and 6570 transitions. [2023-11-23 21:18:13,165 INFO L78 Accepts]: Start accepts. Automaton has 4689 states and 6570 transitions. Word has length 148 [2023-11-23 21:18:13,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:13,166 INFO L495 AbstractCegarLoop]: Abstraction has 4689 states and 6570 transitions. [2023-11-23 21:18:13,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-23 21:18:13,166 INFO L276 IsEmpty]: Start isEmpty. Operand 4689 states and 6570 transitions. [2023-11-23 21:18:13,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-23 21:18:13,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:13,173 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 5, 5, 3, 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] [2023-11-23 21:18:13,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:18:13,174 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:18:13,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:13,175 INFO L85 PathProgramCache]: Analyzing trace with hash 83150280, now seen corresponding path program 1 times [2023-11-23 21:18:13,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:13,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471312097] [2023-11-23 21:18:13,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:13,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:13,899 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2023-11-23 21:18:13,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:13,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471312097] [2023-11-23 21:18:13,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471312097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:13,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:13,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:18:13,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988153245] [2023-11-23 21:18:13,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:13,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:18:13,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:13,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:18:13,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:18:13,902 INFO L87 Difference]: Start difference. First operand 4689 states and 6570 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 21:18:17,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:17,179 INFO L93 Difference]: Finished difference Result 4695 states and 6575 transitions. [2023-11-23 21:18:17,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:18:17,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 157 [2023-11-23 21:18:17,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:17,219 INFO L225 Difference]: With dead ends: 4695 [2023-11-23 21:18:17,219 INFO L226 Difference]: Without dead ends: 4691 [2023-11-23 21:18:17,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:18:17,224 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 1803 mSDsluCounter, 3189 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1804 SdHoareTripleChecker+Valid, 4783 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:17,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1804 Valid, 4783 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-23 21:18:17,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4691 states. [2023-11-23 21:18:17,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4691 to 4691. [2023-11-23 21:18:17,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4691 states, 2781 states have (on average 1.2506292700467458) internal successors, (3478), 2881 states have internal predecessors, (3478), 1548 states have call successors, (1548), 364 states have call predecessors, (1548), 359 states have return successors, (1545), 1522 states have call predecessors, (1545), 1544 states have call successors, (1545) [2023-11-23 21:18:17,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4691 states to 4691 states and 6571 transitions. [2023-11-23 21:18:17,577 INFO L78 Accepts]: Start accepts. Automaton has 4691 states and 6571 transitions. Word has length 157 [2023-11-23 21:18:17,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:17,578 INFO L495 AbstractCegarLoop]: Abstraction has 4691 states and 6571 transitions. [2023-11-23 21:18:17,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 21:18:17,578 INFO L276 IsEmpty]: Start isEmpty. Operand 4691 states and 6571 transitions. [2023-11-23 21:18:17,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-23 21:18:17,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:17,585 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 5, 5, 4, 3, 3, 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] [2023-11-23 21:18:17,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:18:17,585 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:18:17,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:17,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1633305781, now seen corresponding path program 1 times [2023-11-23 21:18:17,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:17,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131175152] [2023-11-23 21:18:17,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:17,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:18,272 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2023-11-23 21:18:18,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:18,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131175152] [2023-11-23 21:18:18,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131175152] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:18,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:18,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:18:18,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280018865] [2023-11-23 21:18:18,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:18,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:18:18,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:18,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:18:18,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:18:18,275 INFO L87 Difference]: Start difference. First operand 4691 states and 6571 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)