./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c492aff-834c-410a-8382-06df96e08fb1/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c492aff-834c-410a-8382-06df96e08fb1/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c492aff-834c-410a-8382-06df96e08fb1/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c492aff-834c-410a-8382-06df96e08fb1/bin/utaipan-verify-NcY6lQBIFX/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_9c492aff-834c-410a-8382-06df96e08fb1/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c492aff-834c-410a-8382-06df96e08fb1/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:01:27,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:01:28,074 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c492aff-834c-410a-8382-06df96e08fb1/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 01:01:28,080 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:01:28,081 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:01:28,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:01:28,108 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:01:28,109 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:01:28,110 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:01:28,114 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:01:28,115 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:01:28,116 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:01:28,117 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:01:28,122 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:01:28,123 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:01:28,123 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:01:28,123 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:01:28,124 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:01:28,124 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:01:28,125 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:01:28,125 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:01:28,127 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:01:28,128 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:01:28,128 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:01:28,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:01:28,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:01:28,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:01:28,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:01:28,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:01:28,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:01:28,132 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:01:28,133 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:01:28,133 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:01:28,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:01:28,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:01:28,134 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:01:28,134 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:01:28,135 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:01:28,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:01:28,135 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:01:28,135 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:01:28,136 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:01:28,136 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_9c492aff-834c-410a-8382-06df96e08fb1/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c492aff-834c-410a-8382-06df96e08fb1/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 [2023-11-12 01:01:28,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:01:28,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:01:28,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:01:28,429 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:01:28,430 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:01:28,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c492aff-834c-410a-8382-06df96e08fb1/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-12 01:01:31,842 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:01:32,560 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:01:32,561 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c492aff-834c-410a-8382-06df96e08fb1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-12 01:01:32,615 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c492aff-834c-410a-8382-06df96e08fb1/bin/utaipan-verify-NcY6lQBIFX/data/b8d1b53bb/e865471cd6a24d84bbe62ef8dd02211d/FLAG6f30d1ed0 [2023-11-12 01:01:32,629 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c492aff-834c-410a-8382-06df96e08fb1/bin/utaipan-verify-NcY6lQBIFX/data/b8d1b53bb/e865471cd6a24d84bbe62ef8dd02211d [2023-11-12 01:01:32,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:01:32,634 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:01:32,636 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:01:32,636 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:01:32,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:01:32,643 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:01:32" (1/1) ... [2023-11-12 01:01:32,644 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fb628c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:32, skipping insertion in model container [2023-11-12 01:01:32,644 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:01:32" (1/1) ... [2023-11-12 01:01:32,819 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:01:35,533 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_9c492aff-834c-410a-8382-06df96e08fb1/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] [2023-11-12 01:01:35,547 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_9c492aff-834c-410a-8382-06df96e08fb1/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] [2023-11-12 01:01:35,548 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_9c492aff-834c-410a-8382-06df96e08fb1/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] [2023-11-12 01:01:35,551 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_9c492aff-834c-410a-8382-06df96e08fb1/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] [2023-11-12 01:01:35,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:01:35,663 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:01:35,801 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] [2023-11-12 01:01:35,804 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] [2023-11-12 01:01:35,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5281] [2023-11-12 01:01:35,807 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] [2023-11-12 01:01:35,808 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] [2023-11-12 01:01:35,819 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] [2023-11-12 01:01:35,824 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] [2023-11-12 01:01:36,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7915] [2023-11-12 01:01:36,134 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_9c492aff-834c-410a-8382-06df96e08fb1/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] [2023-11-12 01:01:36,134 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_9c492aff-834c-410a-8382-06df96e08fb1/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] [2023-11-12 01:01:36,135 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_9c492aff-834c-410a-8382-06df96e08fb1/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] [2023-11-12 01:01:36,136 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_9c492aff-834c-410a-8382-06df96e08fb1/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] [2023-11-12 01:01:36,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:01:36,366 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:01:36,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:36 WrapperNode [2023-11-12 01:01:36,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:01:36,369 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:01:36,369 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:01:36,369 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:01:36,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:36" (1/1) ... [2023-11-12 01:01:36,482 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:36" (1/1) ... [2023-11-12 01:01:36,689 INFO L138 Inliner]: procedures = 357, calls = 1584, calls flagged for inlining = 198, calls inlined = 187, statements flattened = 4774 [2023-11-12 01:01:36,690 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:01:36,691 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:01:36,691 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:01:36,691 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:01:36,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:36" (1/1) ... [2023-11-12 01:01:36,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:36" (1/1) ... [2023-11-12 01:01:36,757 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:36" (1/1) ... [2023-11-12 01:01:36,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:36" (1/1) ... [2023-11-12 01:01:36,923 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:36" (1/1) ... [2023-11-12 01:01:37,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:36" (1/1) ... [2023-11-12 01:01:37,075 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:36" (1/1) ... [2023-11-12 01:01:37,091 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:36" (1/1) ... [2023-11-12 01:01:37,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:01:37,128 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:01:37,128 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:01:37,129 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:01:37,130 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:36" (1/1) ... [2023-11-12 01:01:37,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:01:37,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c492aff-834c-410a-8382-06df96e08fb1/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:01:37,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c492aff-834c-410a-8382-06df96e08fb1/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:01:37,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c492aff-834c-410a-8382-06df96e08fb1/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:01:37,219 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2023-11-12 01:01:37,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2023-11-12 01:01:37,219 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-12 01:01:37,219 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-12 01:01:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 01:01:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 01:01:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 01:01:37,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 01:01:37,221 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-12 01:01:37,221 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-12 01:01:37,221 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2023-11-12 01:01:37,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2023-11-12 01:01:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 01:01:37,223 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 01:01:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 01:01:37,223 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 01:01:37,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 01:01:37,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 01:01:37,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2023-11-12 01:01:37,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2023-11-12 01:01:37,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-12 01:01:37,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-12 01:01:37,227 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-12 01:01:37,227 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-12 01:01:37,228 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2023-11-12 01:01:37,228 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2023-11-12 01:01:37,228 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-12 01:01:37,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-12 01:01:37,228 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 01:01:37,228 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 01:01:37,229 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-12 01:01:37,229 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-12 01:01:37,229 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2023-11-12 01:01:37,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2023-11-12 01:01:37,229 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-12 01:01:37,230 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-12 01:01:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-12 01:01:37,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-12 01:01:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 01:01:37,230 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 01:01:37,231 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-12 01:01:37,231 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-12 01:01:37,231 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 01:01:37,231 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 01:01:37,231 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2023-11-12 01:01:37,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2023-11-12 01:01:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2023-11-12 01:01:37,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2023-11-12 01:01:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2023-11-12 01:01:37,233 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2023-11-12 01:01:37,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:01:37,235 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-12 01:01:37,235 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-12 01:01:37,235 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2023-11-12 01:01:37,235 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2023-11-12 01:01:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 01:01:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 01:01:37,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 01:01:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-12 01:01:37,236 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-12 01:01:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-12 01:01:37,238 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-12 01:01:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-12 01:01:37,238 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-12 01:01:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 01:01:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 01:01:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-12 01:01:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-12 01:01:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2023-11-12 01:01:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2023-11-12 01:01:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-12 01:01:37,240 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-12 01:01:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2023-11-12 01:01:37,240 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2023-11-12 01:01:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:01:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 01:01:37,242 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 01:01:37,242 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 01:01:37,242 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-12 01:01:37,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-12 01:01:37,242 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2023-11-12 01:01:37,243 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2023-11-12 01:01:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 01:01:37,243 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 01:01:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2023-11-12 01:01:37,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2023-11-12 01:01:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 01:01:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 01:01:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-12 01:01:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-12 01:01:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 01:01:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 01:01:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-12 01:01:37,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-12 01:01:37,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 01:01:37,245 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-12 01:01:37,246 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-12 01:01:37,246 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 01:01:37,246 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 01:01:37,246 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2023-11-12 01:01:37,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2023-11-12 01:01:37,247 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2023-11-12 01:01:37,247 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2023-11-12 01:01:37,247 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2023-11-12 01:01:37,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2023-11-12 01:01:37,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 01:01:37,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 01:01:37,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 01:01:37,248 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-12 01:01:37,248 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-12 01:01:37,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 01:01:37,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-12 01:01:37,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-12 01:01:37,249 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-12 01:01:37,249 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-12 01:01:37,249 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 01:01:37,249 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 01:01:37,249 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 01:01:37,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 01:01:37,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 01:01:37,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 01:01:37,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-12 01:01:37,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-12 01:01:37,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 01:01:37,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 01:01:37,251 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-12 01:01:37,251 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-12 01:01:37,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-12 01:01:37,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-12 01:01:37,251 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-12 01:01:37,252 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-12 01:01:37,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-12 01:01:37,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-12 01:01:37,252 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-12 01:01:37,252 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-12 01:01:37,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 01:01:37,253 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-12 01:01:37,253 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-12 01:01:37,253 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-12 01:01:37,253 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-12 01:01:37,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 01:01:37,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 01:01:37,254 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2023-11-12 01:01:37,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2023-11-12 01:01:37,254 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2023-11-12 01:01:37,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2023-11-12 01:01:37,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2023-11-12 01:01:37,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2023-11-12 01:01:37,255 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2023-11-12 01:01:37,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2023-11-12 01:01:37,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 01:01:37,255 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2023-11-12 01:01:37,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2023-11-12 01:01:37,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-12 01:01:37,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-12 01:01:37,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 01:01:37,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 01:01:37,256 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2023-11-12 01:01:37,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2023-11-12 01:01:37,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:01:37,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 01:01:37,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 01:01:37,257 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 01:01:37,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 01:01:37,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 01:01:37,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-12 01:01:37,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-12 01:01:37,258 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-12 01:01:37,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-12 01:01:37,258 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 01:01:37,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 01:01:37,259 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2023-11-12 01:01:37,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2023-11-12 01:01:37,259 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 01:01:37,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 01:01:37,259 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-12 01:01:37,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-12 01:01:37,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 01:01:37,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 01:01:37,260 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2023-11-12 01:01:37,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2023-11-12 01:01:37,260 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-12 01:01:37,260 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-12 01:01:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 01:01:37,261 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 01:01:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-12 01:01:37,261 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-12 01:01:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-12 01:01:37,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-12 01:01:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2023-11-12 01:01:37,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2023-11-12 01:01:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2023-11-12 01:01:37,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2023-11-12 01:01:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-12 01:01:37,262 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-12 01:01:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-12 01:01:37,263 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-12 01:01:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-12 01:01:37,263 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-12 01:01:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-11-12 01:01:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:01:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2023-11-12 01:01:37,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2023-11-12 01:01:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 01:01:37,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 01:01:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2023-11-12 01:01:37,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2023-11-12 01:01:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-12 01:01:37,265 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-12 01:01:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:01:37,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:01:38,183 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:01:38,195 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:01:39,622 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 01:01:43,526 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 01:01:43,709 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:01:46,760 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:01:46,761 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 01:01:46,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:01:46 BoogieIcfgContainer [2023-11-12 01:01:46,767 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:01:46,770 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:01:46,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:01:46,773 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:01:46,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:01:32" (1/3) ... [2023-11-12 01:01:46,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2974daa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:01:46, skipping insertion in model container [2023-11-12 01:01:46,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:36" (2/3) ... [2023-11-12 01:01:46,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2974daa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:01:46, skipping insertion in model container [2023-11-12 01:01:46,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:01:46" (3/3) ... [2023-11-12 01:01:46,778 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-12 01:01:46,798 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:01:46,798 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-12 01:01:46,904 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:01:46,915 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;@77d94b31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:01:46,915 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-12 01:01:46,928 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) [2023-11-12 01:01:46,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-12 01:01:46,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:01:46,961 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:01:46,962 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)] === [2023-11-12 01:01:46,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:01:46,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1678098327, now seen corresponding path program 1 times [2023-11-12 01:01:46,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:01:46,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859064129] [2023-11-12 01:01:46,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:46,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:01:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:01:47,736 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-12 01:01:47,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:01:47,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859064129] [2023-11-12 01:01:47,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859064129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:01:47,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:01:47,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 01:01:47,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555740344] [2023-11-12 01:01:47,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:01:47,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:01:47,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:01:47,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:01:47,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:01:47,779 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) [2023-11-12 01:01:51,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:01:51,530 INFO L93 Difference]: Finished difference Result 3899 states and 5617 transitions. [2023-11-12 01:01:51,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:01:51,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2023-11-12 01:01:51,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:01:51,587 INFO L225 Difference]: With dead ends: 3899 [2023-11-12 01:01:51,587 INFO L226 Difference]: Without dead ends: 2569 [2023-11-12 01:01:51,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:01:51,613 INFO L413 NwaCegarLoop]: 1623 mSDtfsCounter, 1795 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s 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, 3.4s IncrementalHoareTripleChecker+Time [2023-11-12 01:01:51,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1795 Valid, 3202 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-12 01:01:51,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2023-11-12 01:01:51,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 2565. [2023-11-12 01:01:51,883 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) [2023-11-12 01:01:51,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2565 states to 2565 states and 3637 transitions. [2023-11-12 01:01:51,919 INFO L78 Accepts]: Start accepts. Automaton has 2565 states and 3637 transitions. Word has length 101 [2023-11-12 01:01:51,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:01:51,921 INFO L495 AbstractCegarLoop]: Abstraction has 2565 states and 3637 transitions. [2023-11-12 01:01:51,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-12 01:01:51,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2565 states and 3637 transitions. [2023-11-12 01:01:51,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-12 01:01:51,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:01:51,929 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:01:51,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 01:01:51,929 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)] === [2023-11-12 01:01:51,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:01:51,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1750341146, now seen corresponding path program 1 times [2023-11-12 01:01:51,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:01:51,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420156361] [2023-11-12 01:01:51,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:51,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:01:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:01:52,259 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-12 01:01:52,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:01:52,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420156361] [2023-11-12 01:01:52,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420156361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:01:52,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:01:52,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 01:01:52,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576068972] [2023-11-12 01:01:52,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:01:52,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:01:52,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:01:52,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:01:52,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:01:52,266 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) [2023-11-12 01:01:55,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:01:55,701 INFO L93 Difference]: Finished difference Result 7471 states and 10563 transitions. [2023-11-12 01:01:55,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:01:55,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2023-11-12 01:01:55,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:01:55,743 INFO L225 Difference]: With dead ends: 7471 [2023-11-12 01:01:55,743 INFO L226 Difference]: Without dead ends: 4923 [2023-11-12 01:01:55,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:01:55,758 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 1697 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s 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, 3.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:01:55,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 3152 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-12 01:01:55,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4923 states. [2023-11-12 01:01:56,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4923 to 4902. [2023-11-12 01:01:56,065 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) [2023-11-12 01:01:56,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4902 states to 4902 states and 6920 transitions. [2023-11-12 01:01:56,112 INFO L78 Accepts]: Start accepts. Automaton has 4902 states and 6920 transitions. Word has length 101 [2023-11-12 01:01:56,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:01:56,113 INFO L495 AbstractCegarLoop]: Abstraction has 4902 states and 6920 transitions. [2023-11-12 01:01:56,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-12 01:01:56,114 INFO L276 IsEmpty]: Start isEmpty. Operand 4902 states and 6920 transitions. [2023-11-12 01:01:56,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-12 01:01:56,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:01:56,118 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] [2023-11-12 01:01:56,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 01:01:56,119 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)] === [2023-11-12 01:01:56,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:01:56,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1648575331, now seen corresponding path program 1 times [2023-11-12 01:01:56,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:01:56,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254211807] [2023-11-12 01:01:56,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:56,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:01:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:01:56,463 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-12 01:01:56,463 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:01:56,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254211807] [2023-11-12 01:01:56,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254211807] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:01:56,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:01:56,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 01:01:56,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106296506] [2023-11-12 01:01:56,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:01:56,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:01:56,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:01:56,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:01:56,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:01:56,466 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) [2023-11-12 01:02:01,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:01,149 INFO L93 Difference]: Finished difference Result 9585 states and 13523 transitions. [2023-11-12 01:02:01,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:02:01,150 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 [2023-11-12 01:02:01,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:01,191 INFO L225 Difference]: With dead ends: 9585 [2023-11-12 01:02:01,191 INFO L226 Difference]: Without dead ends: 4700 [2023-11-12 01:02:01,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:02:01,216 INFO L413 NwaCegarLoop]: 2023 mSDtfsCounter, 1315 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s 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, 4.3s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:01,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 3576 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-12 01:02:01,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4700 states. [2023-11-12 01:02:01,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4700 to 4681. [2023-11-12 01:02:01,482 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) [2023-11-12 01:02:01,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4681 states to 4681 states and 6564 transitions. [2023-11-12 01:02:01,514 INFO L78 Accepts]: Start accepts. Automaton has 4681 states and 6564 transitions. Word has length 112 [2023-11-12 01:02:01,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:01,516 INFO L495 AbstractCegarLoop]: Abstraction has 4681 states and 6564 transitions. [2023-11-12 01:02:01,516 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) [2023-11-12 01:02:01,517 INFO L276 IsEmpty]: Start isEmpty. Operand 4681 states and 6564 transitions. [2023-11-12 01:02:01,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-12 01:02:01,527 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:01,527 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] [2023-11-12 01:02:01,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 01:02:01,528 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)] === [2023-11-12 01:02:01,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:01,531 INFO L85 PathProgramCache]: Analyzing trace with hash 99687030, now seen corresponding path program 1 times [2023-11-12 01:02:01,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:01,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500197657] [2023-11-12 01:02:01,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:01,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:02,485 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-11-12 01:02:02,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:02,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500197657] [2023-11-12 01:02:02,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500197657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:02,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:02,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 01:02:02,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295709811] [2023-11-12 01:02:02,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:02,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 01:02:02,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:02,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 01:02:02,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:02:02,493 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) [2023-11-12 01:02:06,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:06,776 INFO L93 Difference]: Finished difference Result 4687 states and 6569 transitions. [2023-11-12 01:02:06,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 01:02:06,780 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 [2023-11-12 01:02:06,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:06,822 INFO L225 Difference]: With dead ends: 4687 [2023-11-12 01:02:06,823 INFO L226 Difference]: Without dead ends: 4685 [2023-11-12 01:02:06,828 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 [2023-11-12 01:02:06,832 INFO L413 NwaCegarLoop]: 1592 mSDtfsCounter, 1831 mSDsluCounter, 3178 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s 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, 3.9s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:06,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1834 Valid, 4770 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-12 01:02:06,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4685 states. [2023-11-12 01:02:07,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4685 to 4685. [2023-11-12 01:02:07,260 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) [2023-11-12 01:02:07,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4685 states to 4685 states and 6567 transitions. [2023-11-12 01:02:07,297 INFO L78 Accepts]: Start accepts. Automaton has 4685 states and 6567 transitions. Word has length 143 [2023-11-12 01:02:07,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:07,299 INFO L495 AbstractCegarLoop]: Abstraction has 4685 states and 6567 transitions. [2023-11-12 01:02:07,300 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) [2023-11-12 01:02:07,301 INFO L276 IsEmpty]: Start isEmpty. Operand 4685 states and 6567 transitions. [2023-11-12 01:02:07,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-12 01:02:07,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:07,307 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] [2023-11-12 01:02:07,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 01:02:07,307 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)] === [2023-11-12 01:02:07,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:07,308 INFO L85 PathProgramCache]: Analyzing trace with hash 671332825, now seen corresponding path program 1 times [2023-11-12 01:02:07,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:07,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979006553] [2023-11-12 01:02:07,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:07,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:07,996 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2023-11-12 01:02:07,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:07,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979006553] [2023-11-12 01:02:07,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979006553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:07,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:07,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 01:02:07,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487131832] [2023-11-12 01:02:07,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:07,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 01:02:07,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:07,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 01:02:08,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:02:08,000 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) [2023-11-12 01:02:11,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:11,562 INFO L93 Difference]: Finished difference Result 4691 states and 6572 transitions. [2023-11-12 01:02:11,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 01:02:11,565 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, (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) Word has length 151 [2023-11-12 01:02:11,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:11,600 INFO L225 Difference]: With dead ends: 4691 [2023-11-12 01:02:11,600 INFO L226 Difference]: Without dead ends: 4689 [2023-11-12 01:02:11,604 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 [2023-11-12 01:02:11,605 INFO L413 NwaCegarLoop]: 1595 mSDtfsCounter, 1825 mSDsluCounter, 3178 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1827 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, 3.2s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:11,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1827 Valid, 4773 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-12 01:02:11,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4689 states. [2023-11-12 01:02:11,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4689 to 4689. [2023-11-12 01:02:11,931 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) [2023-11-12 01:02:11,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4689 states to 4689 states and 6570 transitions. [2023-11-12 01:02:11,953 INFO L78 Accepts]: Start accepts. Automaton has 4689 states and 6570 transitions. Word has length 151 [2023-11-12 01:02:11,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:11,954 INFO L495 AbstractCegarLoop]: Abstraction has 4689 states and 6570 transitions. [2023-11-12 01:02:11,954 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, (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) [2023-11-12 01:02:11,955 INFO L276 IsEmpty]: Start isEmpty. Operand 4689 states and 6570 transitions. [2023-11-12 01:02:11,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-12 01:02:11,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:11,960 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] [2023-11-12 01:02:11,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 01:02:11,961 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)] === [2023-11-12 01:02:11,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:11,962 INFO L85 PathProgramCache]: Analyzing trace with hash 68466139, now seen corresponding path program 1 times [2023-11-12 01:02:11,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:11,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148498438] [2023-11-12 01:02:11,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:11,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:12,595 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2023-11-12 01:02:12,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:12,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148498438] [2023-11-12 01:02:12,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148498438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:12,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:12,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 01:02:12,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438441498] [2023-11-12 01:02:12,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:12,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 01:02:12,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:12,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 01:02:12,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:02:12,598 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) [2023-11-12 01:02:16,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:16,207 INFO L93 Difference]: Finished difference Result 4695 states and 6575 transitions. [2023-11-12 01:02:16,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 01:02:16,210 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 [2023-11-12 01:02:16,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:16,244 INFO L225 Difference]: With dead ends: 4695 [2023-11-12 01:02:16,244 INFO L226 Difference]: Without dead ends: 4691 [2023-11-12 01:02:16,247 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 [2023-11-12 01:02:16,248 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 1803 mSDsluCounter, 3189 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s 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, 3.3s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:16,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1804 Valid, 4783 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-12 01:02:16,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4691 states.