./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-netconsole.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_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/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_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/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-netconsole.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/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_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/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 71a59a3596571aa79fb44a527a9b6a33b40c9acdae164ed96a4388ebcdf2e0df --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:48:53,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:48:53,568 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:48:53,574 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:48:53,575 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:48:53,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:48:53,603 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:48:53,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:48:53,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:48:53,605 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:48:53,605 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:48:53,606 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:48:53,606 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:48:53,607 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:48:53,608 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:48:53,608 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:48:53,609 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:48:53,609 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:48:53,610 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:48:53,610 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:48:53,611 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:48:53,612 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:48:53,613 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:48:53,613 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:48:53,614 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:48:53,614 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:48:53,615 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:48:53,615 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:48:53,616 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:48:53,616 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:48:53,617 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:48:53,617 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:48:53,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:48:53,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:53,619 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:48:53,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:48:53,624 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:48:53,624 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:48:53,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:48:53,625 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:48:53,625 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:48:53,627 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:48:53,628 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_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a59a3596571aa79fb44a527a9b6a33b40c9acdae164ed96a4388ebcdf2e0df [2023-11-12 00:48:53,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:48:53,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:48:53,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:48:53,959 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:48:53,960 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:48:53,961 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2023-11-12 00:48:57,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:48:57,858 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:48:57,860 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2023-11-12 00:48:57,912 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/bin/utaipan-verify-NcY6lQBIFX/data/d3be02f8f/e6b6706d18374b0cb2d9bd9b96638a7c/FLAG6252e9890 [2023-11-12 00:48:57,926 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/bin/utaipan-verify-NcY6lQBIFX/data/d3be02f8f/e6b6706d18374b0cb2d9bd9b96638a7c [2023-11-12 00:48:57,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:48:57,932 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:48:57,935 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:57,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:48:57,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:48:57,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:57" (1/1) ... [2023-11-12 00:48:57,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a9dfe68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:57, skipping insertion in model container [2023-11-12 00:48:57,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:57" (1/1) ... [2023-11-12 00:48:58,102 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:49:00,390 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_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311030,311043] [2023-11-12 00:49:00,395 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_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311196,311209] [2023-11-12 00:49:00,396 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_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311360,311373] [2023-11-12 00:49:00,397 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_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311525,311538] [2023-11-12 00:49:00,409 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:49:00,471 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:49:00,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5224] [2023-11-12 00:49:00,703 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5227] [2023-11-12 00:49:00,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5230] [2023-11-12 00:49:00,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5233] [2023-11-12 00:49:00,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5264] [2023-11-12 00:49:00,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5267] [2023-11-12 00:49:00,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5270] [2023-11-12 00:49:00,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5273] [2023-11-12 00:49:00,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5304] [2023-11-12 00:49:00,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5307] [2023-11-12 00:49:00,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5310] [2023-11-12 00:49:00,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5313] [2023-11-12 00:49:00,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5344] [2023-11-12 00:49:00,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5347] [2023-11-12 00:49:00,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5350] [2023-11-12 00:49:00,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5353] [2023-11-12 00:49:00,934 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_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311030,311043] [2023-11-12 00:49:00,935 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_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311196,311209] [2023-11-12 00:49:00,936 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_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311360,311373] [2023-11-12 00:49:00,936 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_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311525,311538] [2023-11-12 00:49:00,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:49:01,080 WARN L672 CHandler]: The function __bad_size_call_parameter is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:49:01,080 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:49:01,089 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:49:01,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:01 WrapperNode [2023-11-12 00:49:01,090 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:49:01,092 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:49:01,092 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:49:01,092 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:49:01,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:01" (1/1) ... [2023-11-12 00:49:01,200 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:01" (1/1) ... [2023-11-12 00:49:01,326 INFO L138 Inliner]: procedures = 289, calls = 1055, calls flagged for inlining = 163, calls inlined = 153, statements flattened = 3421 [2023-11-12 00:49:01,327 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:49:01,328 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:49:01,328 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:49:01,328 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:49:01,339 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:01" (1/1) ... [2023-11-12 00:49:01,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:01" (1/1) ... [2023-11-12 00:49:01,358 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:01" (1/1) ... [2023-11-12 00:49:01,359 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:01" (1/1) ... [2023-11-12 00:49:01,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:01" (1/1) ... [2023-11-12 00:49:01,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:01" (1/1) ... [2023-11-12 00:49:01,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:01" (1/1) ... [2023-11-12 00:49:01,600 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:01" (1/1) ... [2023-11-12 00:49:01,634 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:49:01,636 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:49:01,636 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:49:01,636 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:49:01,637 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:01" (1/1) ... [2023-11-12 00:49:01,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:49:01,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:49:01,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:49:01,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f67e35-a1bc-4fa3-a120-8a0bf68165a0/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:49:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure show_enabled [2023-11-12 00:49:01,728 INFO L138 BoogieDeclarations]: Found implementation of procedure show_enabled [2023-11-12 00:49:01,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdevice_notifier [2023-11-12 00:49:01,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdevice_notifier [2023-11-12 00:49:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:49:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:49:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:49:01,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:49:01,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:49:01,732 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:49:01,732 INFO L130 BoogieDeclarations]: Found specification of procedure show_local_mac [2023-11-12 00:49:01,733 INFO L138 BoogieDeclarations]: Found implementation of procedure show_local_mac [2023-11-12 00:49:01,734 INFO L130 BoogieDeclarations]: Found specification of procedure netconsole_target_put [2023-11-12 00:49:01,734 INFO L138 BoogieDeclarations]: Found implementation of procedure netconsole_target_put [2023-11-12 00:49:01,734 INFO L130 BoogieDeclarations]: Found specification of procedure store_remote_ip [2023-11-12 00:49:01,734 INFO L138 BoogieDeclarations]: Found implementation of procedure store_remote_ip [2023-11-12 00:49:01,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:49:01,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:49:01,735 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2023-11-12 00:49:01,735 INFO L130 BoogieDeclarations]: Found specification of procedure show_dev_name [2023-11-12 00:49:01,735 INFO L138 BoogieDeclarations]: Found implementation of procedure show_dev_name [2023-11-12 00:49:01,735 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_notifier [2023-11-12 00:49:01,735 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_notifier [2023-11-12 00:49:01,735 INFO L130 BoogieDeclarations]: Found specification of procedure drop_netconsole_target [2023-11-12 00:49:01,736 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_netconsole_target [2023-11-12 00:49:01,737 INFO L130 BoogieDeclarations]: Found specification of procedure free_param_target [2023-11-12 00:49:01,737 INFO L138 BoogieDeclarations]: Found implementation of procedure free_param_target [2023-11-12 00:49:01,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:49:01,737 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:49:01,738 INFO L130 BoogieDeclarations]: Found specification of procedure netconsole_target_get [2023-11-12 00:49:01,738 INFO L138 BoogieDeclarations]: Found implementation of procedure netconsole_target_get [2023-11-12 00:49:01,738 INFO L130 BoogieDeclarations]: Found specification of procedure store_remote_mac [2023-11-12 00:49:01,738 INFO L138 BoogieDeclarations]: Found implementation of procedure store_remote_mac [2023-11-12 00:49:01,738 INFO L130 BoogieDeclarations]: Found specification of procedure show_local_ip [2023-11-12 00:49:01,738 INFO L138 BoogieDeclarations]: Found implementation of procedure show_local_ip [2023-11-12 00:49:01,739 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 00:49:01,739 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 00:49:01,739 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-12 00:49:01,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-12 00:49:01,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_netconsole_target [2023-11-12 00:49:01,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_netconsole_target [2023-11-12 00:49:01,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:49:01,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:49:01,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:49:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:49:01,742 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-12 00:49:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-12 00:49:01,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:49:01,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:49:01,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-12 00:49:01,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-12 00:49:01,743 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 00:49:01,743 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 00:49:01,744 INFO L130 BoogieDeclarations]: Found specification of procedure netconsole_target_release [2023-11-12 00:49:01,744 INFO L138 BoogieDeclarations]: Found implementation of procedure netconsole_target_release [2023-11-12 00:49:01,744 INFO L130 BoogieDeclarations]: Found specification of procedure netconsole_target_attr_show [2023-11-12 00:49:01,744 INFO L138 BoogieDeclarations]: Found implementation of procedure netconsole_target_attr_show [2023-11-12 00:49:01,744 INFO L130 BoogieDeclarations]: Found specification of procedure make_netconsole_target [2023-11-12 00:49:01,744 INFO L138 BoogieDeclarations]: Found implementation of procedure make_netconsole_target [2023-11-12 00:49:01,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:49:01,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:49:01,745 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_cleanup [2023-11-12 00:49:01,745 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_cleanup [2023-11-12 00:49:01,745 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:49:01,746 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:49:01,746 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_setup [2023-11-12 00:49:01,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_setup [2023-11-12 00:49:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-12 00:49:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-12 00:49:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 00:49:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 00:49:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-12 00:49:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-12 00:49:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-12 00:49:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-12 00:49:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure store_remote_port [2023-11-12 00:49:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure store_remote_port [2023-11-12 00:49:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:49:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:49:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure strnchr [2023-11-12 00:49:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure strnchr [2023-11-12 00:49:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou16 [2023-11-12 00:49:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou16 [2023-11-12 00:49:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:49:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-12 00:49:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-12 00:49:01,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:49:01,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:49:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:49:01,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:49:01,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-12 00:49:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-12 00:49:01,751 INFO L130 BoogieDeclarations]: Found specification of procedure store_enabled [2023-11-12 00:49:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure store_enabled [2023-11-12 00:49:01,752 INFO L130 BoogieDeclarations]: Found specification of procedure show_remote_ip [2023-11-12 00:49:01,753 INFO L138 BoogieDeclarations]: Found implementation of procedure show_remote_ip [2023-11-12 00:49:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2023-11-12 00:49:01,753 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2023-11-12 00:49:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_cleanup_netconsole_14_2 [2023-11-12 00:49:01,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_cleanup_netconsole_14_2 [2023-11-12 00:49:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:49:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:49:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure to_target [2023-11-12 00:49:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure to_target [2023-11-12 00:49:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-12 00:49:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-12 00:49:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure config_item_put [2023-11-12 00:49:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure config_item_put [2023-11-12 00:49:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:49:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure show_remote_mac [2023-11-12 00:49:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure show_remote_mac [2023-11-12 00:49:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure in6_pton [2023-11-12 00:49:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure in6_pton [2023-11-12 00:49:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:49:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 00:49:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 00:49:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:49:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:49:01,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:49:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:49:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-12 00:49:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure store_local_ip [2023-11-12 00:49:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure store_local_ip [2023-11-12 00:49:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure in_aton [2023-11-12 00:49:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure in_aton [2023-11-12 00:49:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:49:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:49:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-12 00:49:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-12 00:49:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure store_dev_name [2023-11-12 00:49:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure store_dev_name [2023-11-12 00:49:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure show_remote_port [2023-11-12 00:49:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure show_remote_port [2023-11-12 00:49:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure netconsole_target_attr_store [2023-11-12 00:49:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure netconsole_target_attr_store [2023-11-12 00:49:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:49:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure store_local_port [2023-11-12 00:49:01,765 INFO L138 BoogieDeclarations]: Found implementation of procedure store_local_port [2023-11-12 00:49:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:49:01,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:49:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure config_item_name [2023-11-12 00:49:01,765 INFO L138 BoogieDeclarations]: Found implementation of procedure config_item_name [2023-11-12 00:49:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure show_local_port [2023-11-12 00:49:01,765 INFO L138 BoogieDeclarations]: Found implementation of procedure show_local_port [2023-11-12 00:49:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:49:01,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:49:02,518 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:49:02,524 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:49:02,738 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:49:05,258 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 00:49:05,353 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:49:06,021 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:49:06,021 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-12 00:49:06,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:49:06 BoogieIcfgContainer [2023-11-12 00:49:06,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:49:06,031 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:49:06,031 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:49:06,035 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:49:06,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:48:57" (1/3) ... [2023-11-12 00:49:06,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d38260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:49:06, skipping insertion in model container [2023-11-12 00:49:06,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:01" (2/3) ... [2023-11-12 00:49:06,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d38260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:49:06, skipping insertion in model container [2023-11-12 00:49:06,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:49:06" (3/3) ... [2023-11-12 00:49:06,041 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2023-11-12 00:49:06,063 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:49:06,063 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-12 00:49:06,159 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:49:06,167 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;@2749872c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:49:06,167 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-12 00:49:06,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 1165 states, 694 states have (on average 1.3097982708933718) internal successors, (909), 703 states have internal predecessors, (909), 405 states have call successors, (405), 64 states have call predecessors, (405), 63 states have return successors, (400), 400 states have call predecessors, (400), 400 states have call successors, (400) [2023-11-12 00:49:06,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 762 [2023-11-12 00:49:06,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:06,259 INFO L195 NwaCegarLoop]: trace histogram [75, 74, 74, 74, 74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:06,259 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:49:06,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:06,265 INFO L85 PathProgramCache]: Analyzing trace with hash -506074426, now seen corresponding path program 1 times [2023-11-12 00:49:06,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:06,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332867441] [2023-11-12 00:49:06,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:06,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:08,235 INFO L134 CoverageAnalysis]: Checked inductivity of 21756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21756 trivial. 0 not checked. [2023-11-12 00:49:08,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:08,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332867441] [2023-11-12 00:49:08,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332867441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:08,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:08,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:49:08,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122039379] [2023-11-12 00:49:08,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:08,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:08,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:08,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:08,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:08,304 INFO L87 Difference]: Start difference. First operand has 1165 states, 694 states have (on average 1.3097982708933718) internal successors, (909), 703 states have internal predecessors, (909), 405 states have call successors, (405), 64 states have call predecessors, (405), 63 states have return successors, (400), 400 states have call predecessors, (400), 400 states have call successors, (400) Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2023-11-12 00:49:09,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:09,289 INFO L93 Difference]: Finished difference Result 3070 states and 4539 transitions. [2023-11-12 00:49:09,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:09,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) Word has length 761 [2023-11-12 00:49:09,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:09,339 INFO L225 Difference]: With dead ends: 3070 [2023-11-12 00:49:09,339 INFO L226 Difference]: Without dead ends: 2045 [2023-11-12 00:49:09,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:09,362 INFO L413 NwaCegarLoop]: 1549 mSDtfsCounter, 1406 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:09,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 2980 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-12 00:49:09,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2023-11-12 00:49:09,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 2041. [2023-11-12 00:49:09,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2041 states, 1242 states have (on average 1.321256038647343) internal successors, (1641), 1258 states have internal predecessors, (1641), 675 states have call successors, (675), 122 states have call predecessors, (675), 121 states have return successors, (671), 671 states have call predecessors, (671), 671 states have call successors, (671) [2023-11-12 00:49:09,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2041 states to 2041 states and 2987 transitions. [2023-11-12 00:49:09,672 INFO L78 Accepts]: Start accepts. Automaton has 2041 states and 2987 transitions. Word has length 761 [2023-11-12 00:49:09,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:09,678 INFO L495 AbstractCegarLoop]: Abstraction has 2041 states and 2987 transitions. [2023-11-12 00:49:09,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2023-11-12 00:49:09,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2041 states and 2987 transitions. [2023-11-12 00:49:09,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2023-11-12 00:49:09,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:09,719 INFO L195 NwaCegarLoop]: trace histogram [75, 74, 74, 74, 74, 74, 74, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:09,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:49:09,720 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:49:09,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:09,722 INFO L85 PathProgramCache]: Analyzing trace with hash -754052760, now seen corresponding path program 1 times [2023-11-12 00:49:09,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:09,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627447297] [2023-11-12 00:49:09,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:09,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:10,685 INFO L134 CoverageAnalysis]: Checked inductivity of 21759 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21759 trivial. 0 not checked. [2023-11-12 00:49:10,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:10,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627447297] [2023-11-12 00:49:10,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627447297] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:10,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:10,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:49:10,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716589972] [2023-11-12 00:49:10,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:10,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:10,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:10,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:10,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:10,693 INFO L87 Difference]: Start difference. First operand 2041 states and 2987 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-12 00:49:11,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:11,610 INFO L93 Difference]: Finished difference Result 4925 states and 7151 transitions. [2023-11-12 00:49:11,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:11,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) Word has length 790 [2023-11-12 00:49:11,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:11,645 INFO L225 Difference]: With dead ends: 4925 [2023-11-12 00:49:11,645 INFO L226 Difference]: Without dead ends: 3033 [2023-11-12 00:49:11,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:11,661 INFO L413 NwaCegarLoop]: 1532 mSDtfsCounter, 1382 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 3024 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:11,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 3024 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-12 00:49:11,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3033 states. [2023-11-12 00:49:11,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3033 to 3014. [2023-11-12 00:49:11,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3014 states, 1836 states have (on average 1.3202614379084967) internal successors, (2424), 1863 states have internal predecessors, (2424), 969 states have call successors, (969), 207 states have call predecessors, (969), 206 states have return successors, (965), 960 states have call predecessors, (965), 965 states have call successors, (965) [2023-11-12 00:49:11,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3014 states to 3014 states and 4358 transitions. [2023-11-12 00:49:11,960 INFO L78 Accepts]: Start accepts. Automaton has 3014 states and 4358 transitions. Word has length 790 [2023-11-12 00:49:11,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:11,966 INFO L495 AbstractCegarLoop]: Abstraction has 3014 states and 4358 transitions. [2023-11-12 00:49:11,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-12 00:49:11,967 INFO L276 IsEmpty]: Start isEmpty. Operand 3014 states and 4358 transitions. [2023-11-12 00:49:11,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2023-11-12 00:49:11,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:11,990 INFO L195 NwaCegarLoop]: trace histogram [75, 74, 74, 74, 74, 74, 74, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:11,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:49:11,990 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:49:11,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:11,997 INFO L85 PathProgramCache]: Analyzing trace with hash 537797666, now seen corresponding path program 1 times [2023-11-12 00:49:11,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:11,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860620733] [2023-11-12 00:49:11,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:11,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:13,052 INFO L134 CoverageAnalysis]: Checked inductivity of 21759 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21759 trivial. 0 not checked. [2023-11-12 00:49:13,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:13,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860620733] [2023-11-12 00:49:13,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860620733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:13,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:13,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:49:13,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143017950] [2023-11-12 00:49:13,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:13,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:13,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:13,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:13,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:13,058 INFO L87 Difference]: Start difference. First operand 3014 states and 4358 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-12 00:49:14,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:14,045 INFO L93 Difference]: Finished difference Result 7844 states and 11269 transitions. [2023-11-12 00:49:14,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:14,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) Word has length 788 [2023-11-12 00:49:14,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:14,098 INFO L225 Difference]: With dead ends: 7844 [2023-11-12 00:49:14,098 INFO L226 Difference]: Without dead ends: 4979 [2023-11-12 00:49:14,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:14,122 INFO L413 NwaCegarLoop]: 1564 mSDtfsCounter, 1384 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 3056 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:14,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 3056 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-12 00:49:14,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4979 states. [2023-11-12 00:49:14,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4979 to 4960. [2023-11-12 00:49:14,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4960 states, 3024 states have (on average 1.3194444444444444) internal successors, (3990), 3073 states have internal predecessors, (3990), 1557 states have call successors, (1557), 377 states have call predecessors, (1557), 376 states have return successors, (1553), 1538 states have call predecessors, (1553), 1553 states have call successors, (1553) [2023-11-12 00:49:14,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4960 states to 4960 states and 7100 transitions. [2023-11-12 00:49:14,588 INFO L78 Accepts]: Start accepts. Automaton has 4960 states and 7100 transitions. Word has length 788 [2023-11-12 00:49:14,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:14,590 INFO L495 AbstractCegarLoop]: Abstraction has 4960 states and 7100 transitions. [2023-11-12 00:49:14,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-12 00:49:14,591 INFO L276 IsEmpty]: Start isEmpty. Operand 4960 states and 7100 transitions. [2023-11-12 00:49:14,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2023-11-12 00:49:14,605 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:14,606 INFO L195 NwaCegarLoop]: trace histogram [75, 74, 74, 74, 74, 74, 74, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:14,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:49:14,606 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:49:14,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:14,608 INFO L85 PathProgramCache]: Analyzing trace with hash -79327191, now seen corresponding path program 1 times [2023-11-12 00:49:14,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:14,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901689773] [2023-11-12 00:49:14,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:14,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:15,403 INFO L134 CoverageAnalysis]: Checked inductivity of 21759 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21759 trivial. 0 not checked. [2023-11-12 00:49:15,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:15,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901689773] [2023-11-12 00:49:15,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901689773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:15,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:15,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:49:15,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113554254] [2023-11-12 00:49:15,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:15,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:15,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:15,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:15,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:15,408 INFO L87 Difference]: Start difference. First operand 4960 states and 7100 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-12 00:49:16,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:16,580 INFO L93 Difference]: Finished difference Result 13638 states and 19431 transitions. [2023-11-12 00:49:16,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:16,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) Word has length 789 [2023-11-12 00:49:16,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:16,653 INFO L225 Difference]: With dead ends: 13638 [2023-11-12 00:49:16,654 INFO L226 Difference]: Without dead ends: 8827 [2023-11-12 00:49:16,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:16,683 INFO L413 NwaCegarLoop]: 1625 mSDtfsCounter, 1383 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 3117 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:16,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 3117 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-12 00:49:16,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8827 states. [2023-11-12 00:49:17,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8827 to 8808. [2023-11-12 00:49:17,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8808 states, 5375 states have (on average 1.318325581395349) internal successors, (7086), 5468 states have internal predecessors, (7086), 2714 states have call successors, (2714), 717 states have call predecessors, (2714), 716 states have return successors, (2710), 2675 states have call predecessors, (2710), 2710 states have call successors, (2710) [2023-11-12 00:49:17,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8808 states to 8808 states and 12510 transitions. [2023-11-12 00:49:17,554 INFO L78 Accepts]: Start accepts. Automaton has 8808 states and 12510 transitions. Word has length 789 [2023-11-12 00:49:17,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:17,556 INFO L495 AbstractCegarLoop]: Abstraction has 8808 states and 12510 transitions. [2023-11-12 00:49:17,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-12 00:49:17,557 INFO L276 IsEmpty]: Start isEmpty. Operand 8808 states and 12510 transitions. [2023-11-12 00:49:17,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2023-11-12 00:49:17,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:17,577 INFO L195 NwaCegarLoop]: trace histogram [75, 74, 74, 74, 74, 74, 74, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:17,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:49:17,578 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:49:17,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:17,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1145401088, now seen corresponding path program 1 times [2023-11-12 00:49:17,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:17,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255690961] [2023-11-12 00:49:17,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:17,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:18,502 INFO L134 CoverageAnalysis]: Checked inductivity of 21759 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21759 trivial. 0 not checked. [2023-11-12 00:49:18,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:18,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255690961] [2023-11-12 00:49:18,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255690961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:18,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:18,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:49:18,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557925023] [2023-11-12 00:49:18,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:18,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:18,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:18,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:18,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:18,507 INFO L87 Difference]: Start difference. First operand 8808 states and 12510 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-12 00:49:20,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:20,007 INFO L93 Difference]: Finished difference Result 25050 states and 35459 transitions. [2023-11-12 00:49:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:20,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) Word has length 791 [2023-11-12 00:49:20,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:20,144 INFO L225 Difference]: With dead ends: 25050 [2023-11-12 00:49:20,144 INFO L226 Difference]: Without dead ends: 16391 [2023-11-12 00:49:20,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:20,197 INFO L413 NwaCegarLoop]: 1733 mSDtfsCounter, 1381 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:20,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1381 Valid, 3225 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-12 00:49:20,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16391 states. [2023-11-12 00:49:21,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16391 to 16372. [2023-11-12 00:49:21,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16372 states, 10002 states have (on average 1.3167366526694662) internal successors, (13170), 10183 states have internal predecessors, (13170), 4971 states have call successors, (4971), 1397 states have call predecessors, (4971), 1396 states have return successors, (4967), 4892 states have call predecessors, (4967), 4967 states have call successors, (4967) [2023-11-12 00:49:21,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16372 states to 16372 states and 23108 transitions. [2023-11-12 00:49:21,637 INFO L78 Accepts]: Start accepts. Automaton has 16372 states and 23108 transitions. Word has length 791 [2023-11-12 00:49:21,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:21,638 INFO L495 AbstractCegarLoop]: Abstraction has 16372 states and 23108 transitions. [2023-11-12 00:49:21,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-12 00:49:21,639 INFO L276 IsEmpty]: Start isEmpty. Operand 16372 states and 23108 transitions. [2023-11-12 00:49:21,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2023-11-12 00:49:21,652 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:21,653 INFO L195 NwaCegarLoop]: trace histogram [75, 74, 74, 74, 74, 74, 74, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:21,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:49:21,654 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:49:21,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:21,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1312823941, now seen corresponding path program 1 times [2023-11-12 00:49:21,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:21,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158126706] [2023-11-12 00:49:21,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:21,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:22,385 INFO L134 CoverageAnalysis]: Checked inductivity of 21759 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21759 trivial. 0 not checked. [2023-11-12 00:49:22,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:22,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158126706] [2023-11-12 00:49:22,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158126706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:22,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:22,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:49:22,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788344859] [2023-11-12 00:49:22,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:22,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:22,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:22,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:22,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:22,390 INFO L87 Difference]: Start difference. First operand 16372 states and 23108 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-12 00:49:25,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:25,009 INFO L93 Difference]: Finished difference Result 47434 states and 66775 transitions. [2023-11-12 00:49:25,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:25,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) Word has length 794 [2023-11-12 00:49:25,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:25,222 INFO L225 Difference]: With dead ends: 47434 [2023-11-12 00:49:25,222 INFO L226 Difference]: Without dead ends: 31211 [2023-11-12 00:49:25,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:25,303 INFO L413 NwaCegarLoop]: 1800 mSDtfsCounter, 1378 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 3292 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:25,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 3292 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-12 00:49:25,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31211 states. [2023-11-12 00:49:27,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31211 to 31192. [2023-11-12 00:49:27,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31192 states, 19081 states have (on average 1.3147109690267806) internal successors, (25086), 19438 states have internal predecessors, (25086), 9352 states have call successors, (9352), 2757 states have call predecessors, (9352), 2756 states have return successors, (9348), 9193 states have call predecessors, (9348), 9348 states have call successors, (9348) [2023-11-12 00:49:27,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31192 states to 31192 states and 43786 transitions. [2023-11-12 00:49:27,959 INFO L78 Accepts]: Start accepts. Automaton has 31192 states and 43786 transitions. Word has length 794 [2023-11-12 00:49:27,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:27,962 INFO L495 AbstractCegarLoop]: Abstraction has 31192 states and 43786 transitions. [2023-11-12 00:49:27,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-12 00:49:27,962 INFO L276 IsEmpty]: Start isEmpty. Operand 31192 states and 43786 transitions. [2023-11-12 00:49:27,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2023-11-12 00:49:27,982 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:27,983 INFO L195 NwaCegarLoop]: trace histogram [75, 74, 74, 74, 74, 74, 74, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:27,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 00:49:27,984 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:49:27,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:27,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1895769949, now seen corresponding path program 1 times [2023-11-12 00:49:27,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:27,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598805982] [2023-11-12 00:49:27,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:27,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:28,947 INFO L134 CoverageAnalysis]: Checked inductivity of 21759 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21759 trivial. 0 not checked. [2023-11-12 00:49:28,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:28,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598805982] [2023-11-12 00:49:28,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598805982] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:28,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:28,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:49:28,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331019218] [2023-11-12 00:49:28,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:28,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:28,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:28,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:28,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:28,951 INFO L87 Difference]: Start difference. First operand 31192 states and 43786 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-12 00:49:32,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:32,597 INFO L93 Difference]: Finished difference Result 91234 states and 127779 transitions. [2023-11-12 00:49:32,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:32,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) Word has length 792 [2023-11-12 00:49:32,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:32,922 INFO L225 Difference]: With dead ends: 91234 [2023-11-12 00:49:32,923 INFO L226 Difference]: Without dead ends: 60191 [2023-11-12 00:49:33,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:33,025 INFO L413 NwaCegarLoop]: 1867 mSDtfsCounter, 1380 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 3359 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:33,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 3359 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-12 00:49:33,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60191 states. [2023-11-12 00:49:37,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60191 to 60172. [2023-11-12 00:49:37,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60172 states, 36864 states have (on average 1.3123372395833333) internal successors, (48378), 37573 states have internal predecessors, (48378), 17829 states have call successors, (17829), 5477 states have call predecessors, (17829), 5476 states have return successors, (17825), 17510 states have call predecessors, (17825), 17825 states have call successors, (17825)