./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72aad63-7d1e-4835-a421-6e21513735fd/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72aad63-7d1e-4835-a421-6e21513735fd/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72aad63-7d1e-4835-a421-6e21513735fd/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72aad63-7d1e-4835-a421-6e21513735fd/bin/utaipan-verify-t7M7D8N6sZ/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_a72aad63-7d1e-4835-a421-6e21513735fd/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72aad63-7d1e-4835-a421-6e21513735fd/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:03:27,323 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:03:27,385 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72aad63-7d1e-4835-a421-6e21513735fd/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:03:27,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:03:27,391 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:03:27,415 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:03:27,415 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:03:27,416 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:03:27,417 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:03:27,417 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:03:27,418 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:03:27,418 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:03:27,419 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:03:27,419 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:03:27,420 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:03:27,441 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:03:27,441 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:03:27,442 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:03:27,443 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:03:27,443 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:03:27,444 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:03:27,444 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:03:27,445 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:03:27,446 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:03:27,446 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:03:27,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:03:27,447 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:03:27,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:03:27,448 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:03:27,448 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:03:27,449 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:03:27,449 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:03:27,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:03:27,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:03:27,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:03:27,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:03:27,451 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:03:27,451 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:03:27,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:03:27,452 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:03:27,452 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:03:27,452 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:03:27,455 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_a72aad63-7d1e-4835-a421-6e21513735fd/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72aad63-7d1e-4835-a421-6e21513735fd/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 [2023-11-19 05:03:27,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:03:27,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:03:27,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:03:27,746 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:03:27,747 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:03:27,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72aad63-7d1e-4835-a421-6e21513735fd/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-19 05:03:30,956 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:03:31,650 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:03:31,652 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72aad63-7d1e-4835-a421-6e21513735fd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-19 05:03:31,704 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72aad63-7d1e-4835-a421-6e21513735fd/bin/utaipan-verify-t7M7D8N6sZ/data/395b1ba7a/3b524efda1d74c0694ee19811ae227f2/FLAG8578413eb [2023-11-19 05:03:31,724 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72aad63-7d1e-4835-a421-6e21513735fd/bin/utaipan-verify-t7M7D8N6sZ/data/395b1ba7a/3b524efda1d74c0694ee19811ae227f2 [2023-11-19 05:03:31,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:03:31,732 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:03:31,733 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:03:31,733 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:03:31,739 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:03:31,739 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:03:31" (1/1) ... [2023-11-19 05:03:31,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28b059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:31, skipping insertion in model container [2023-11-19 05:03:31,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:03:31" (1/1) ... [2023-11-19 05:03:31,968 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:03:34,571 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_a72aad63-7d1e-4835-a421-6e21513735fd/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] [2023-11-19 05:03:34,577 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_a72aad63-7d1e-4835-a421-6e21513735fd/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] [2023-11-19 05:03:34,578 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_a72aad63-7d1e-4835-a421-6e21513735fd/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] [2023-11-19 05:03:34,579 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_a72aad63-7d1e-4835-a421-6e21513735fd/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] [2023-11-19 05:03:34,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:03:34,665 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:03:34,774 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] [2023-11-19 05:03:34,776 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] [2023-11-19 05:03:34,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5281] [2023-11-19 05:03:34,779 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] [2023-11-19 05:03:34,779 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] [2023-11-19 05:03:34,790 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] [2023-11-19 05:03:34,794 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] [2023-11-19 05:03:34,940 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7915] [2023-11-19 05:03:35,145 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_a72aad63-7d1e-4835-a421-6e21513735fd/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] [2023-11-19 05:03:35,146 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_a72aad63-7d1e-4835-a421-6e21513735fd/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] [2023-11-19 05:03:35,147 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_a72aad63-7d1e-4835-a421-6e21513735fd/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] [2023-11-19 05:03:35,147 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_a72aad63-7d1e-4835-a421-6e21513735fd/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] [2023-11-19 05:03:35,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:03:35,434 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:03:35,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35 WrapperNode [2023-11-19 05:03:35,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:03:35,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:03:35,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:03:35,437 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:03:35,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:35,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:35,875 INFO L138 Inliner]: procedures = 357, calls = 1584, calls flagged for inlining = 198, calls inlined = 187, statements flattened = 4774 [2023-11-19 05:03:35,876 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:03:35,877 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:03:35,877 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:03:35,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:03:35,890 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:35,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:35,916 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:35,917 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:36,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:36,130 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:36,249 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:36,266 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:36,314 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:03:36,318 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:03:36,318 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:03:36,319 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:03:36,320 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:36,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:03:36,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72aad63-7d1e-4835-a421-6e21513735fd/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:03:36,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72aad63-7d1e-4835-a421-6e21513735fd/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:03:36,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72aad63-7d1e-4835-a421-6e21513735fd/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:03:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2023-11-19 05:03:36,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2023-11-19 05:03:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-19 05:03:36,419 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-19 05:03:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:03:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:03:36,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:03:36,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:03:36,421 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 05:03:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 05:03:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2023-11-19 05:03:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2023-11-19 05:03:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:03:36,424 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:03:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 05:03:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 05:03:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:03:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:03:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2023-11-19 05:03:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2023-11-19 05:03:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 05:03:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 05:03:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 05:03:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 05:03:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2023-11-19 05:03:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2023-11-19 05:03:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 05:03:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 05:03:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 05:03:36,431 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 05:03:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-19 05:03:36,431 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-19 05:03:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2023-11-19 05:03:36,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2023-11-19 05:03:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-19 05:03:36,432 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-19 05:03:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-19 05:03:36,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-19 05:03:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 05:03:36,433 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 05:03:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-19 05:03:36,433 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-19 05:03:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 05:03:36,434 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 05:03:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2023-11-19 05:03:36,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2023-11-19 05:03:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2023-11-19 05:03:36,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2023-11-19 05:03:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2023-11-19 05:03:36,436 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2023-11-19 05:03:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:03:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 05:03:36,438 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 05:03:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2023-11-19 05:03:36,438 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2023-11-19 05:03:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:03:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 05:03:36,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 05:03:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-19 05:03:36,440 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-19 05:03:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-19 05:03:36,441 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-19 05:03:36,442 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 05:03:36,442 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 05:03:36,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 05:03:36,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 05:03:36,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-19 05:03:36,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-19 05:03:36,443 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2023-11-19 05:03:36,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2023-11-19 05:03:36,443 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 05:03:36,444 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 05:03:36,444 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2023-11-19 05:03:36,444 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2023-11-19 05:03:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:03:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:03:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:03:36,446 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:03:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 05:03:36,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 05:03:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2023-11-19 05:03:36,446 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2023-11-19 05:03:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 05:03:36,447 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 05:03:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2023-11-19 05:03:36,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2023-11-19 05:03:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 05:03:36,448 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 05:03:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-19 05:03:36,448 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-19 05:03:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 05:03:36,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 05:03:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-19 05:03:36,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-19 05:03:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:03:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-19 05:03:36,449 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-19 05:03:36,450 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 05:03:36,451 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 05:03:36,451 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2023-11-19 05:03:36,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2023-11-19 05:03:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2023-11-19 05:03:36,452 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2023-11-19 05:03:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2023-11-19 05:03:36,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2023-11-19 05:03:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:03:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 05:03:36,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 05:03:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-19 05:03:36,454 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-19 05:03:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:03:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-19 05:03:36,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-19 05:03:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 05:03:36,455 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 05:03:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 05:03:36,456 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 05:03:36,456 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 05:03:36,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 05:03:36,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 05:03:36,456 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 05:03:36,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 05:03:36,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 05:03:36,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 05:03:36,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 05:03:36,458 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 05:03:36,458 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 05:03:36,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 05:03:36,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 05:03:36,459 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-19 05:03:36,459 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-19 05:03:36,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-19 05:03:36,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-19 05:03:36,461 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 05:03:36,462 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 05:03:36,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:03:36,466 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 05:03:36,467 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 05:03:36,467 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-19 05:03:36,467 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-19 05:03:36,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:03:36,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:03:36,469 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2023-11-19 05:03:36,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2023-11-19 05:03:36,471 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2023-11-19 05:03:36,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2023-11-19 05:03:36,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2023-11-19 05:03:36,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2023-11-19 05:03:36,477 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2023-11-19 05:03:36,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2023-11-19 05:03:36,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:03:36,477 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2023-11-19 05:03:36,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2023-11-19 05:03:36,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 05:03:36,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 05:03:36,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 05:03:36,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 05:03:36,479 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2023-11-19 05:03:36,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2023-11-19 05:03:36,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:03:36,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 05:03:36,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 05:03:36,480 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 05:03:36,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 05:03:36,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:03:36,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-19 05:03:36,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-19 05:03:36,481 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-19 05:03:36,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-19 05:03:36,481 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:03:36,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:03:36,482 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2023-11-19 05:03:36,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2023-11-19 05:03:36,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 05:03:36,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 05:03:36,482 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-19 05:03:36,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-19 05:03:36,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 05:03:36,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 05:03:36,483 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2023-11-19 05:03:36,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2023-11-19 05:03:36,484 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-19 05:03:36,484 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-19 05:03:36,484 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 05:03:36,484 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 05:03:36,484 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 05:03:36,484 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 05:03:36,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 05:03:36,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 05:03:36,485 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2023-11-19 05:03:36,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2023-11-19 05:03:36,485 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2023-11-19 05:03:36,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2023-11-19 05:03:36,486 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-19 05:03:36,486 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-19 05:03:36,486 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-19 05:03:36,486 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-19 05:03:36,486 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 05:03:36,487 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 05:03:36,487 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-11-19 05:03:36,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:03:36,487 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2023-11-19 05:03:36,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2023-11-19 05:03:36,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 05:03:36,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 05:03:36,488 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2023-11-19 05:03:36,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2023-11-19 05:03:36,488 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-19 05:03:36,489 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-19 05:03:36,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:03:36,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:03:37,379 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:03:37,395 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:03:38,858 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:03:43,968 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 05:03:44,115 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:03:47,447 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:03:47,447 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 05:03:47,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:03:47 BoogieIcfgContainer [2023-11-19 05:03:47,465 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:03:47,469 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:03:47,469 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:03:47,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:03:47,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:03:31" (1/3) ... [2023-11-19 05:03:47,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7430e9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:03:47, skipping insertion in model container [2023-11-19 05:03:47,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (2/3) ... [2023-11-19 05:03:47,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7430e9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:03:47, skipping insertion in model container [2023-11-19 05:03:47,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:03:47" (3/3) ... [2023-11-19 05:03:47,476 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-19 05:03:47,500 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:03:47,500 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 05:03:47,612 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:03:47,623 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;@75736e0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:03:47,623 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 05:03:47,636 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) [2023-11-19 05:03:47,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 05:03:47,670 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:47,671 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] [2023-11-19 05:03:47,672 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)] === [2023-11-19 05:03:47,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:47,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1678098327, now seen corresponding path program 1 times [2023-11-19 05:03:47,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:47,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214938917] [2023-11-19 05:03:47,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:47,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:48,677 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-19 05:03:48,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:48,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214938917] [2023-11-19 05:03:48,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214938917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:48,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:48,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:03:48,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361186439] [2023-11-19 05:03:48,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:48,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:03:48,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:48,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:03:48,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:03:48,743 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) [2023-11-19 05:03:52,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:52,902 INFO L93 Difference]: Finished difference Result 3899 states and 5617 transitions. [2023-11-19 05:03:52,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:03:52,906 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 [2023-11-19 05:03:52,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:52,984 INFO L225 Difference]: With dead ends: 3899 [2023-11-19 05:03:52,984 INFO L226 Difference]: Without dead ends: 2569 [2023-11-19 05:03:53,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:03:53,015 INFO L413 NwaCegarLoop]: 1623 mSDtfsCounter, 1795 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:53,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1795 Valid, 3202 Invalid, 571 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-19 05:03:53,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2023-11-19 05:03:53,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 2565. [2023-11-19 05:03:53,400 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) [2023-11-19 05:03:53,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2565 states to 2565 states and 3637 transitions. [2023-11-19 05:03:53,448 INFO L78 Accepts]: Start accepts. Automaton has 2565 states and 3637 transitions. Word has length 101 [2023-11-19 05:03:53,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:53,451 INFO L495 AbstractCegarLoop]: Abstraction has 2565 states and 3637 transitions. [2023-11-19 05:03:53,451 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) [2023-11-19 05:03:53,451 INFO L276 IsEmpty]: Start isEmpty. Operand 2565 states and 3637 transitions. [2023-11-19 05:03:53,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 05:03:53,460 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:53,460 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] [2023-11-19 05:03:53,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:03:53,461 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)] === [2023-11-19 05:03:53,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:53,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1750341146, now seen corresponding path program 1 times [2023-11-19 05:03:53,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:53,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415264205] [2023-11-19 05:03:53,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:53,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:53,881 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-19 05:03:53,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:53,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415264205] [2023-11-19 05:03:53,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415264205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:53,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:53,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:03:53,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564952116] [2023-11-19 05:03:53,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:53,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:03:53,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:53,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:03:53,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:03:53,885 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) [2023-11-19 05:03:58,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:58,147 INFO L93 Difference]: Finished difference Result 7471 states and 10563 transitions. [2023-11-19 05:03:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:03:58,148 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 [2023-11-19 05:03:58,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:58,199 INFO L225 Difference]: With dead ends: 7471 [2023-11-19 05:03:58,200 INFO L226 Difference]: Without dead ends: 4923 [2023-11-19 05:03:58,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:03:58,218 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 1697 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s 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, 3.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:58,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 3152 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-19 05:03:58,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4923 states. [2023-11-19 05:03:58,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4923 to 4902. [2023-11-19 05:03:58,587 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) [2023-11-19 05:03:58,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4902 states to 4902 states and 6920 transitions. [2023-11-19 05:03:58,643 INFO L78 Accepts]: Start accepts. Automaton has 4902 states and 6920 transitions. Word has length 101 [2023-11-19 05:03:58,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:58,644 INFO L495 AbstractCegarLoop]: Abstraction has 4902 states and 6920 transitions. [2023-11-19 05:03:58,645 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) [2023-11-19 05:03:58,645 INFO L276 IsEmpty]: Start isEmpty. Operand 4902 states and 6920 transitions. [2023-11-19 05:03:58,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-19 05:03:58,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:58,650 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] [2023-11-19 05:03:58,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:03:58,650 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)] === [2023-11-19 05:03:58,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:58,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1648575331, now seen corresponding path program 1 times [2023-11-19 05:03:58,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:58,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78776182] [2023-11-19 05:03:58,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:58,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:59,109 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-19 05:03:59,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:59,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78776182] [2023-11-19 05:03:59,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78776182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:59,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:59,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:03:59,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475430069] [2023-11-19 05:03:59,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:59,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:03:59,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:59,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:03:59,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:03:59,122 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) [2023-11-19 05:04:01,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:04:04,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:04:04,357 INFO L93 Difference]: Finished difference Result 9585 states and 13523 transitions. [2023-11-19 05:04:04,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:04:04,358 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 [2023-11-19 05:04:04,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:04:04,414 INFO L225 Difference]: With dead ends: 9585 [2023-11-19 05:04:04,414 INFO L226 Difference]: Without dead ends: 4700 [2023-11-19 05:04:04,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:04:04,451 INFO L413 NwaCegarLoop]: 2023 mSDtfsCounter, 1315 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 3576 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:04:04,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 3576 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-11-19 05:04:04,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4700 states. [2023-11-19 05:04:04,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4700 to 4681. [2023-11-19 05:04:04,913 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) [2023-11-19 05:04:04,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4681 states to 4681 states and 6564 transitions. [2023-11-19 05:04:04,958 INFO L78 Accepts]: Start accepts. Automaton has 4681 states and 6564 transitions. Word has length 112 [2023-11-19 05:04:04,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:04:04,961 INFO L495 AbstractCegarLoop]: Abstraction has 4681 states and 6564 transitions. [2023-11-19 05:04:04,962 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) [2023-11-19 05:04:04,962 INFO L276 IsEmpty]: Start isEmpty. Operand 4681 states and 6564 transitions. [2023-11-19 05:04:04,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-19 05:04:04,976 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:04:04,977 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] [2023-11-19 05:04:04,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:04:04,978 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)] === [2023-11-19 05:04:04,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:04:04,979 INFO L85 PathProgramCache]: Analyzing trace with hash 99687030, now seen corresponding path program 1 times [2023-11-19 05:04:04,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:04:04,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171187319] [2023-11-19 05:04:04,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:04:04,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:04:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:04:06,075 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-11-19 05:04:06,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:04:06,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171187319] [2023-11-19 05:04:06,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171187319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:04:06,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:04:06,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:04:06,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436443322] [2023-11-19 05:04:06,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:04:06,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:04:06,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:04:06,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:04:06,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:04:06,086 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) [2023-11-19 05:04:09,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:04:11,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:04:11,186 INFO L93 Difference]: Finished difference Result 4687 states and 6569 transitions. [2023-11-19 05:04:11,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:04:11,189 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 [2023-11-19 05:04:11,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:04:11,234 INFO L225 Difference]: With dead ends: 4687 [2023-11-19 05:04:11,234 INFO L226 Difference]: Without dead ends: 4685 [2023-11-19 05:04:11,238 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 [2023-11-19 05:04:11,239 INFO L413 NwaCegarLoop]: 1592 mSDtfsCounter, 1831 mSDsluCounter, 3178 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s 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, 4.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:04:11,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1834 Valid, 4770 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-19 05:04:11,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4685 states. [2023-11-19 05:04:11,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4685 to 4685. [2023-11-19 05:04:11,645 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) [2023-11-19 05:04:11,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4685 states to 4685 states and 6567 transitions. [2023-11-19 05:04:11,675 INFO L78 Accepts]: Start accepts. Automaton has 4685 states and 6567 transitions. Word has length 143 [2023-11-19 05:04:11,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:04:11,676 INFO L495 AbstractCegarLoop]: Abstraction has 4685 states and 6567 transitions. [2023-11-19 05:04:11,676 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) [2023-11-19 05:04:11,676 INFO L276 IsEmpty]: Start isEmpty. Operand 4685 states and 6567 transitions. [2023-11-19 05:04:11,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-19 05:04:11,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:04:11,683 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 5, 5, 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] [2023-11-19 05:04:11,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:04:11,683 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)] === [2023-11-19 05:04:11,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:04:11,684 INFO L85 PathProgramCache]: Analyzing trace with hash 671332825, now seen corresponding path program 1 times [2023-11-19 05:04:11,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:04:11,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162520767] [2023-11-19 05:04:11,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:04:11,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:04:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:04:12,613 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2023-11-19 05:04:12,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:04:12,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162520767] [2023-11-19 05:04:12,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162520767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:04:12,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:04:12,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:04:12,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224715415] [2023-11-19 05:04:12,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:04:12,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:04:12,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:04:12,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:04:12,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:04:12,630 INFO L87 Difference]: Start difference. First operand 4685 states and 6567 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, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)