./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_d57cfda3-c9dc-4c35-914c-8149571a0ec5/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d57cfda3-c9dc-4c35-914c-8149571a0ec5/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d57cfda3-c9dc-4c35-914c-8149571a0ec5/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d57cfda3-c9dc-4c35-914c-8149571a0ec5/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d57cfda3-c9dc-4c35-914c-8149571a0ec5/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d57cfda3-c9dc-4c35-914c-8149571a0ec5/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 232e8c8bdb70ee1ad9fec7edefe8ce3076fc3bc6f131163eee7a33dd2ac504a2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:19:00,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:19:00,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:19:00,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:19:00,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:19:00,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:19:00,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:19:00,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:19:00,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:19:00,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:19:00,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:19:00,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:19:00,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:19:00,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:19:00,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:19:00,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:19:00,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:19:00,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:19:00,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:19:00,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:19:00,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:19:00,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:19:00,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:19:00,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:19:00,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:19:00,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:19:00,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:19:00,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:19:00,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:19:00,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:19:00,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:19:00,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:19:00,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:19:00,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:19:00,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:19:00,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:19:00,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:19:00,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:19:00,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:19:00,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:19:00,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:19:00,310 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d57cfda3-c9dc-4c35-914c-8149571a0ec5/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 17:19:00,353 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:19:00,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:19:00,354 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:19:00,354 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:19:00,355 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:19:00,355 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:19:00,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:19:00,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:19:00,357 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:19:00,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:19:00,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:19:00,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:19:00,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:19:00,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:19:00,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:19:00,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:19:00,360 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:19:00,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:19:00,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:19:00,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:19:00,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:19:00,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:19:00,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:19:00,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:19:00,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:19:00,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:19:00,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:19:00,363 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:19:00,364 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:19:00,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:19:00,364 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_d57cfda3-c9dc-4c35-914c-8149571a0ec5/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d57cfda3-c9dc-4c35-914c-8149571a0ec5/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 232e8c8bdb70ee1ad9fec7edefe8ce3076fc3bc6f131163eee7a33dd2ac504a2 [2022-11-21 17:19:00,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:19:00,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:19:00,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:19:00,761 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:19:00,762 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:19:00,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d57cfda3-c9dc-4c35-914c-8149571a0ec5/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2022-11-21 17:19:03,869 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:19:04,678 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:19:04,680 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d57cfda3-c9dc-4c35-914c-8149571a0ec5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2022-11-21 17:19:04,764 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d57cfda3-c9dc-4c35-914c-8149571a0ec5/bin/uautomizer-vX5HgA9Q3a/data/edc0f64f8/1483f6d1ad9a42eebdabb20d85e7f8e5/FLAG46b15e1b4 [2022-11-21 17:19:04,787 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d57cfda3-c9dc-4c35-914c-8149571a0ec5/bin/uautomizer-vX5HgA9Q3a/data/edc0f64f8/1483f6d1ad9a42eebdabb20d85e7f8e5 [2022-11-21 17:19:04,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:19:04,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:19:04,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:19:04,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:19:04,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:19:04,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:19:04" (1/1) ... [2022-11-21 17:19:04,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36bc3f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:04, skipping insertion in model container [2022-11-21 17:19:04,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:19:04" (1/1) ... [2022-11-21 17:19:04,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:19:05,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:19:09,267 WARN L237 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_d57cfda3-c9dc-4c35-914c-8149571a0ec5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445023,445036] [2022-11-21 17:19:09,271 WARN L237 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_d57cfda3-c9dc-4c35-914c-8149571a0ec5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445189,445202] [2022-11-21 17:19:09,272 WARN L237 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_d57cfda3-c9dc-4c35-914c-8149571a0ec5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445353,445366] [2022-11-21 17:19:09,273 WARN L237 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_d57cfda3-c9dc-4c35-914c-8149571a0ec5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445518,445531] [2022-11-21 17:19:09,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:19:09,350 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:19:09,906 WARN L237 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_d57cfda3-c9dc-4c35-914c-8149571a0ec5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445023,445036] [2022-11-21 17:19:09,907 WARN L237 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_d57cfda3-c9dc-4c35-914c-8149571a0ec5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445189,445202] [2022-11-21 17:19:09,907 WARN L237 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_d57cfda3-c9dc-4c35-914c-8149571a0ec5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445353,445366] [2022-11-21 17:19:09,908 WARN L237 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_d57cfda3-c9dc-4c35-914c-8149571a0ec5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445518,445531] [2022-11-21 17:19:09,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:19:10,158 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:19:10,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:10 WrapperNode [2022-11-21 17:19:10,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:19:10,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:19:10,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:19:10,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:19:10,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:10" (1/1) ... [2022-11-21 17:19:10,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:10" (1/1) ... [2022-11-21 17:19:10,583 INFO L138 Inliner]: procedures = 544, calls = 4003, calls flagged for inlining = 320, calls inlined = 309, statements flattened = 10078 [2022-11-21 17:19:10,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:19:10,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:19:10,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:19:10,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:19:10,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:10" (1/1) ... [2022-11-21 17:19:10,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:10" (1/1) ... [2022-11-21 17:19:10,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:10" (1/1) ... [2022-11-21 17:19:10,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:10" (1/1) ... [2022-11-21 17:19:10,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:10" (1/1) ... [2022-11-21 17:19:10,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:10" (1/1) ... [2022-11-21 17:19:11,033 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:10" (1/1) ... [2022-11-21 17:19:11,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:10" (1/1) ... [2022-11-21 17:19:11,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:19:11,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:19:11,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:19:11,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:19:11,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:10" (1/1) ... [2022-11-21 17:19:11,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:19:11,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d57cfda3-c9dc-4c35-914c-8149571a0ec5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:19:11,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d57cfda3-c9dc-4c35-914c-8149571a0ec5/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:19:11,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d57cfda3-c9dc-4c35-914c-8149571a0ec5/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:19:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-21 17:19:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-21 17:19:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_read [2022-11-21 17:19:11,352 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_read [2022-11-21 17:19:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure cas_pcs_link_check [2022-11-21 17:19:11,352 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_pcs_link_check [2022-11-21 17:19:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-21 17:19:11,352 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-21 17:19:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-21 17:19:11,353 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-21 17:19:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-21 17:19:11,353 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-21 17:19:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-21 17:19:11,353 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-21 17:19:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 17:19:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 17:19:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mii_link_check [2022-11-21 17:19:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mii_link_check [2022-11-21 17:19:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure cas_calc_tabort [2022-11-21 17:19:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_calc_tabort [2022-11-21 17:19:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-21 17:19:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-21 17:19:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-21 17:19:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-21 17:19:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-21 17:19:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-21 17:19:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-21 17:19:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-21 17:19:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-21 17:19:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-21 17:19:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure cas_lock_tx [2022-11-21 17:19:11,359 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_lock_tx [2022-11-21 17:19:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-21 17:19:11,359 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-21 17:19:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-21 17:19:11,360 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-21 17:19:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure cas_disable_irq [2022-11-21 17:19:11,360 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_disable_irq [2022-11-21 17:19:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure cas_free_rxds [2022-11-21 17:19:11,361 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_free_rxds [2022-11-21 17:19:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2022-11-21 17:19:11,361 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2022-11-21 17:19:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure cas_open [2022-11-21 17:19:11,361 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_open [2022-11-21 17:19:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure cas_interrupt [2022-11-21 17:19:11,362 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_interrupt [2022-11-21 17:19:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_tiny_free [2022-11-21 17:19:11,362 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_tiny_free [2022-11-21 17:19:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-21 17:19:11,362 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-21 17:19:11,363 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_map [2022-11-21 17:19:11,363 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_map [2022-11-21 17:19:11,364 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_init [2022-11-21 17:19:11,364 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_init [2022-11-21 17:19:11,364 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-21 17:19:11,364 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-21 17:19:11,364 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2022-11-21 17:19:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2022-11-21 17:19:11,365 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-21 17:19:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-21 17:19:11,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-21 17:19:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-21 17:19:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure cas_enable_irq [2022-11-21 17:19:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_enable_irq [2022-11-21 17:19:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-21 17:19:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-21 17:19:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-21 17:19:11,367 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-21 17:19:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_dequeue [2022-11-21 17:19:11,367 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_dequeue [2022-11-21 17:19:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-21 17:19:11,367 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-21 17:19:11,368 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-21 17:19:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-21 17:19:11,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-21 17:19:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-21 17:19:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-21 17:19:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-21 17:19:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-21 17:19:11,370 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-21 17:19:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-21 17:19:11,370 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-21 17:19:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:19:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-21 17:19:11,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-21 17:19:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_multicast [2022-11-21 17:19:11,372 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_multicast [2022-11-21 17:19:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-21 17:19:11,372 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-21 17:19:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-21 17:19:11,372 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-21 17:19:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_free [2022-11-21 17:19:11,373 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_free [2022-11-21 17:19:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_timeout [2022-11-21 17:19:11,373 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_timeout [2022-11-21 17:19:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-21 17:19:11,374 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-21 17:19:11,374 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_pcs_link_mode [2022-11-21 17:19:11,374 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_pcs_link_mode [2022-11-21 17:19:11,374 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-21 17:19:11,374 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-21 17:19:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-21 17:19:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure cas_close [2022-11-21 17:19:11,375 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_close [2022-11-21 17:19:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_swap [2022-11-21 17:19:11,375 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_swap [2022-11-21 17:19:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-21 17:19:11,376 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-21 17:19:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure cas_netpoll [2022-11-21 17:19:11,376 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_netpoll [2022-11-21 17:19:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure cas_hard_reset [2022-11-21 17:19:11,377 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_hard_reset [2022-11-21 17:19:11,378 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-21 17:19:11,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-21 17:19:11,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 17:19:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-21 17:19:11,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-21 17:19:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure cas_rxc_init [2022-11-21 17:19:11,384 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_rxc_init [2022-11-21 17:19:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:19:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-21 17:19:11,386 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-21 17:19:11,391 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clear_mac_err [2022-11-21 17:19:11,392 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clear_mac_err [2022-11-21 17:19:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-21 17:19:11,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-21 17:19:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-21 17:19:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-21 17:19:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-21 17:19:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-21 17:19:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-21 17:19:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-21 17:19:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure cas_remove_one [2022-11-21 17:19:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_remove_one [2022-11-21 17:19:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-21 17:19:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-21 17:19:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-21 17:19:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-21 17:19:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-21 17:19:11,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-21 17:19:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 17:19:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-21 17:19:11,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-21 17:19:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-21 17:19:11,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-21 17:19:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-21 17:19:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-21 17:19:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:19:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2022-11-21 17:19:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2022-11-21 17:19:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-21 17:19:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-21 17:19:11,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pm_mutex_of_cas [2022-11-21 17:19:11,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pm_mutex_of_cas [2022-11-21 17:19:11,397 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-21 17:19:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-21 17:19:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 17:19:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-21 17:19:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 17:19:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 17:19:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_link_modes [2022-11-21 17:19:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_link_modes [2022-11-21 17:19:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_mii_link_mode [2022-11-21 17:19:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_mii_link_mode [2022-11-21 17:19:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2022-11-21 17:19:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2022-11-21 17:19:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-21 17:19:11,400 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-21 17:19:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-21 17:19:11,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-21 17:19:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-21 17:19:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-21 17:19:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-11-21 17:19:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-11-21 17:19:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-21 17:19:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-21 17:19:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-21 17:19:11,402 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-21 17:19:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-21 17:19:11,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-21 17:19:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure csum_unfold [2022-11-21 17:19:11,402 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_unfold [2022-11-21 17:19:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-21 17:19:11,403 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-21 17:19:11,403 INFO L130 BoogieDeclarations]: Found specification of procedure cas_entropy_gather [2022-11-21 17:19:11,403 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_entropy_gather [2022-11-21 17:19:11,403 INFO L130 BoogieDeclarations]: Found specification of procedure cas_resume [2022-11-21 17:19:11,403 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_resume [2022-11-21 17:19:11,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:19:11,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:19:11,404 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_alloc [2022-11-21 17:19:11,404 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_alloc [2022-11-21 17:19:11,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 17:19:11,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 17:19:11,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 17:19:11,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 17:19:11,405 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-21 17:19:11,405 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-21 17:19:11,405 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mif_poll [2022-11-21 17:19:11,405 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mif_poll [2022-11-21 17:19:11,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-21 17:19:11,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-21 17:19:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure cas_unlock_tx [2022-11-21 17:19:11,406 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_unlock_tx [2022-11-21 17:19:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice [2022-11-21 17:19:11,406 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice [2022-11-21 17:19:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-21 17:19:11,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-21 17:19:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2022-11-21 17:19:11,407 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2022-11-21 17:19:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-21 17:19:11,407 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-21 17:19:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-21 17:19:11,407 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-21 17:19:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-21 17:19:11,408 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-21 17:19:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-21 17:19:11,408 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-21 17:19:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_buf [2022-11-21 17:19:11,408 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_buf [2022-11-21 17:19:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mac_reset [2022-11-21 17:19:11,409 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mac_reset [2022-11-21 17:19:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:19:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-21 17:19:11,409 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-21 17:19:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_set_page [2022-11-21 17:19:11,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_set_page [2022-11-21 17:19:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 17:19:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_regs_len [2022-11-21 17:19:11,410 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_regs_len [2022-11-21 17:19:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure cas_reset [2022-11-21 17:19:11,410 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_reset [2022-11-21 17:19:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-21 17:19:11,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-21 17:19:11,411 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_page [2022-11-21 17:19:11,411 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_page [2022-11-21 17:19:11,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 17:19:11,411 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-21 17:19:11,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-21 17:19:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure cas_nway_reset [2022-11-21 17:19:11,416 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_nway_reset [2022-11-21 17:19:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-21 17:19:11,417 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-21 17:19:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pm_mutex_of_cas [2022-11-21 17:19:11,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pm_mutex_of_cas [2022-11-21 17:19:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-21 17:19:11,417 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-21 17:19:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-21 17:19:11,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-21 17:19:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure cas_setup_multicast [2022-11-21 17:19:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_setup_multicast [2022-11-21 17:19:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_powerdown [2022-11-21 17:19:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_powerdown [2022-11-21 17:19:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2022-11-21 17:19:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2022-11-21 17:19:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-21 17:19:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-21 17:19:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure cas_vpd_match [2022-11-21 17:19:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_vpd_match [2022-11-21 17:19:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-21 17:19:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-21 17:19:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2022-11-21 17:19:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2022-11-21 17:19:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-21 17:19:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-21 17:19:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-21 17:19:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-21 17:19:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure page_count [2022-11-21 17:19:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure page_count [2022-11-21 17:19:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-21 17:19:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-21 17:19:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure cas_shutdown [2022-11-21 17:19:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_shutdown [2022-11-21 17:19:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure cas_begin_auto_negotiation [2022-11-21 17:19:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_begin_auto_negotiation [2022-11-21 17:19:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-21 17:19:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-21 17:19:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-21 17:19:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-21 17:19:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure cas_write_txd [2022-11-21 17:19:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_write_txd [2022-11-21 17:19:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-21 17:19:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-21 17:19:11,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-21 17:19:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-21 17:19:11,425 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_ref [2022-11-21 17:19:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_ref [2022-11-21 17:19:11,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:19:11,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 17:19:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 17:19:11,426 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-21 17:19:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-21 17:19:11,426 INFO L130 BoogieDeclarations]: Found specification of procedure cas_init_hw [2022-11-21 17:19:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_init_hw [2022-11-21 17:19:11,426 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clean_rings [2022-11-21 17:19:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clean_rings [2022-11-21 17:19:11,426 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_free [2022-11-21 17:19:11,427 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_free [2022-11-21 17:19:11,427 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-21 17:19:11,427 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-21 17:19:11,427 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_write [2022-11-21 17:19:11,427 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_write [2022-11-21 17:19:11,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-21 17:19:11,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-21 17:19:11,428 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-21 17:19:11,428 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-21 17:19:11,428 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-21 17:19:11,428 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-21 17:19:11,428 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_recover [2022-11-21 17:19:11,428 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_recover [2022-11-21 17:19:11,429 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2022-11-21 17:19:11,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2022-11-21 17:19:11,429 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-21 17:19:11,429 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-21 17:19:11,429 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_stats [2022-11-21 17:19:11,429 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_stats [2022-11-21 17:19:11,429 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-21 17:19:11,430 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-21 17:19:11,430 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-21 17:19:11,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-21 17:19:11,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:19:11,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-21 17:19:11,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-21 17:19:11,430 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-21 17:19:11,431 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-21 17:19:11,431 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-21 17:19:11,431 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-21 17:19:12,856 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:19:12,861 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:19:13,400 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 17:23:08,698 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-21 17:23:08,965 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:23:08,999 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:23:08,999 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-21 17:23:09,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:23:09 BoogieIcfgContainer [2022-11-21 17:23:09,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:23:09,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:23:09,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:23:09,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:23:09,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:19:04" (1/3) ... [2022-11-21 17:23:09,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62213c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:23:09, skipping insertion in model container [2022-11-21 17:23:09,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:10" (2/3) ... [2022-11-21 17:23:09,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62213c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:23:09, skipping insertion in model container [2022-11-21 17:23:09,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:23:09" (3/3) ... [2022-11-21 17:23:09,018 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2022-11-21 17:23:09,038 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:23:09,038 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-21 17:23:09,158 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:23:09,165 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@5360d8ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:23:09,165 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-21 17:23:09,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 3687 states, 2486 states have (on average 1.2972646822204343) internal successors, (3225), 2556 states have internal predecessors, (3225), 1045 states have call successors, (1045), 155 states have call predecessors, (1045), 154 states have return successors, (1040), 1028 states have call predecessors, (1040), 1040 states have call successors, (1040) [2022-11-21 17:23:09,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-21 17:23:09,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:09,201 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:23:09,201 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:23:09,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:09,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1810620206, now seen corresponding path program 1 times [2022-11-21 17:23:09,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:09,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853804158] [2022-11-21 17:23:09,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:09,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:23:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:23:11,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:23:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:23:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:23:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 17:23:11,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 17:23:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 17:23:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 17:23:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 17:23:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 17:23:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:23:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:23:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 17:23:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:11,397 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-11-21 17:23:11,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:11,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853804158] [2022-11-21 17:23:11,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853804158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:11,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:23:11,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:23:11,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961271830] [2022-11-21 17:23:11,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:11,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:23:11,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:11,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:23:11,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:23:11,458 INFO L87 Difference]: Start difference. First operand has 3687 states, 2486 states have (on average 1.2972646822204343) internal successors, (3225), 2556 states have internal predecessors, (3225), 1045 states have call successors, (1045), 155 states have call predecessors, (1045), 154 states have return successors, (1040), 1028 states have call predecessors, (1040), 1040 states have call successors, (1040) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 17:23:13,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:23:15,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:23:40,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:23:52,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:52,886 INFO L93 Difference]: Finished difference Result 11761 states and 17349 transitions. [2022-11-21 17:23:52,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:23:52,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 156 [2022-11-21 17:23:52,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:52,975 INFO L225 Difference]: With dead ends: 11761 [2022-11-21 17:23:52,975 INFO L226 Difference]: Without dead ends: 8091 [2022-11-21 17:23:53,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:23:53,013 INFO L413 NwaCegarLoop]: 4291 mSDtfsCounter, 7837 mSDsluCounter, 4911 mSDsCounter, 0 mSdLazyCounter, 5921 mSolverCounterSat, 3631 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8927 SdHoareTripleChecker+Valid, 9202 SdHoareTripleChecker+Invalid, 9554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3631 IncrementalHoareTripleChecker+Valid, 5921 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:53,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8927 Valid, 9202 Invalid, 9554 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3631 Valid, 5921 Invalid, 2 Unknown, 0 Unchecked, 40.2s Time] [2022-11-21 17:23:53,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8091 states. [2022-11-21 17:23:53,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8091 to 7223. [2022-11-21 17:23:53,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7223 states, 4866 states have (on average 1.2870941224825319) internal successors, (6263), 5002 states have internal predecessors, (6263), 2049 states have call successors, (2049), 306 states have call predecessors, (2049), 305 states have return successors, (2046), 2022 states have call predecessors, (2046), 2046 states have call successors, (2046) [2022-11-21 17:23:53,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7223 states to 7223 states and 10358 transitions. [2022-11-21 17:23:53,603 INFO L78 Accepts]: Start accepts. Automaton has 7223 states and 10358 transitions. Word has length 156 [2022-11-21 17:23:53,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:53,605 INFO L495 AbstractCegarLoop]: Abstraction has 7223 states and 10358 transitions. [2022-11-21 17:23:53,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 17:23:53,605 INFO L276 IsEmpty]: Start isEmpty. Operand 7223 states and 10358 transitions. [2022-11-21 17:23:53,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-21 17:23:53,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:53,612 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:23:53,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:23:53,613 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:23:53,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:53,614 INFO L85 PathProgramCache]: Analyzing trace with hash 567958573, now seen corresponding path program 1 times [2022-11-21 17:23:53,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:53,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233059762] [2022-11-21 17:23:53,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:53,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:23:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:23:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:23:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:23:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:54,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:23:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 17:23:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 17:23:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 17:23:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 17:23:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 17:23:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:54,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 17:23:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:55,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:55,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:23:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:55,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:23:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:55,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:23:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:55,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-21 17:23:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:55,040 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-11-21 17:23:55,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:55,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233059762] [2022-11-21 17:23:55,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233059762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:55,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:23:55,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:23:55,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259544280] [2022-11-21 17:23:55,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:55,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:23:55,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:55,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:23:55,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:23:55,044 INFO L87 Difference]: Start difference. First operand 7223 states and 10358 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 17:23:57,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:23:59,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:24:23,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:24:26,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:24:32,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:24:32,504 INFO L93 Difference]: Finished difference Result 16050 states and 23093 transitions. [2022-11-21 17:24:32,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:24:32,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 171 [2022-11-21 17:24:32,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:24:32,564 INFO L225 Difference]: With dead ends: 16050 [2022-11-21 17:24:32,564 INFO L226 Difference]: Without dead ends: 8856 [2022-11-21 17:24:32,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:24:32,616 INFO L413 NwaCegarLoop]: 4047 mSDtfsCounter, 5508 mSDsluCounter, 4875 mSDsCounter, 0 mSdLazyCounter, 5456 mSolverCounterSat, 2267 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6348 SdHoareTripleChecker+Valid, 8922 SdHoareTripleChecker+Invalid, 7725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2267 IncrementalHoareTripleChecker+Valid, 5456 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:24:32,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6348 Valid, 8922 Invalid, 7725 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2267 Valid, 5456 Invalid, 2 Unknown, 0 Unchecked, 36.6s Time] [2022-11-21 17:24:32,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8856 states. [2022-11-21 17:24:33,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8856 to 7995. [2022-11-21 17:24:33,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7995 states, 5483 states have (on average 1.2954586904979026) internal successors, (7103), 5632 states have internal predecessors, (7103), 2126 states have call successors, (2126), 384 states have call predecessors, (2126), 383 states have return successors, (2123), 2096 states have call predecessors, (2123), 2123 states have call successors, (2123) [2022-11-21 17:24:33,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7995 states to 7995 states and 11352 transitions. [2022-11-21 17:24:33,139 INFO L78 Accepts]: Start accepts. Automaton has 7995 states and 11352 transitions. Word has length 171 [2022-11-21 17:24:33,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:24:33,142 INFO L495 AbstractCegarLoop]: Abstraction has 7995 states and 11352 transitions. [2022-11-21 17:24:33,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 17:24:33,144 INFO L276 IsEmpty]: Start isEmpty. Operand 7995 states and 11352 transitions. [2022-11-21 17:24:33,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-21 17:24:33,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:24:33,152 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:24:33,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:24:33,153 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:24:33,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:33,153 INFO L85 PathProgramCache]: Analyzing trace with hash 626171647, now seen corresponding path program 1 times [2022-11-21 17:24:33,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:33,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414130909] [2022-11-21 17:24:33,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:33,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:33,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:24:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:24:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:24:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:24:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:24:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:24:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:24:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:24:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:24:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:24:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 17:24:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:24:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 17:24:34,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:24:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 17:24:34,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:24:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 17:24:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:24:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 17:24:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:24:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 17:24:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:24:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:24:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:24:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:24:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-21 17:24:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:34,205 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-11-21 17:24:34,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:24:34,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414130909] [2022-11-21 17:24:34,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414130909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:24:34,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:24:34,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:24:34,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648035735] [2022-11-21 17:24:34,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:24:34,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:24:34,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:24:34,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:24:34,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:24:34,210 INFO L87 Difference]: Start difference. First operand 7995 states and 11352 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 17:24:36,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:24:38,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:25:13,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:25:13,725 INFO L93 Difference]: Finished difference Result 21245 states and 30455 transitions. [2022-11-21 17:25:13,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:25:13,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 174 [2022-11-21 17:25:13,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:25:13,828 INFO L225 Difference]: With dead ends: 21245 [2022-11-21 17:25:13,828 INFO L226 Difference]: Without dead ends: 13279 [2022-11-21 17:25:13,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:25:13,868 INFO L413 NwaCegarLoop]: 4203 mSDtfsCounter, 7153 mSDsluCounter, 4810 mSDsCounter, 0 mSdLazyCounter, 5844 mSolverCounterSat, 3464 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8139 SdHoareTripleChecker+Valid, 9013 SdHoareTripleChecker+Invalid, 9310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3464 IncrementalHoareTripleChecker+Valid, 5844 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:25:13,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8139 Valid, 9013 Invalid, 9310 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3464 Valid, 5844 Invalid, 2 Unknown, 0 Unchecked, 38.6s Time] [2022-11-21 17:25:13,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13279 states. [2022-11-21 17:25:14,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13279 to 12139. [2022-11-21 17:25:14,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12139 states, 8300 states have (on average 1.29855421686747) internal successors, (10778), 8537 states have internal predecessors, (10778), 3233 states have call successors, (3233), 591 states have call predecessors, (3233), 603 states have return successors, (3269), 3194 states have call predecessors, (3269), 3230 states have call successors, (3269) [2022-11-21 17:25:14,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12139 states to 12139 states and 17280 transitions. [2022-11-21 17:25:14,601 INFO L78 Accepts]: Start accepts. Automaton has 12139 states and 17280 transitions. Word has length 174 [2022-11-21 17:25:14,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:25:14,603 INFO L495 AbstractCegarLoop]: Abstraction has 12139 states and 17280 transitions. [2022-11-21 17:25:14,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 17:25:14,604 INFO L276 IsEmpty]: Start isEmpty. Operand 12139 states and 17280 transitions. [2022-11-21 17:25:14,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-21 17:25:14,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:25:14,609 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:25:14,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:25:14,610 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:25:14,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:25:14,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1457586675, now seen corresponding path program 1 times [2022-11-21 17:25:14,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:25:14,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247537967] [2022-11-21 17:25:14,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:25:14,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:25:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:25:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:25:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:25:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:25:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:25:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:25:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:25:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:25:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:25:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:25:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 17:25:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:25:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 17:25:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:25:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 17:25:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:25:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 17:25:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:25:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 17:25:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:25:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 17:25:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:25:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:25:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:25:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:25:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-21 17:25:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-21 17:25:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-21 17:25:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-21 17:25:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:25:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-21 17:25:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-21 17:25:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-21 17:25:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:25:15,870 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-11-21 17:25:15,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:25:15,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247537967] [2022-11-21 17:25:15,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247537967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:25:15,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:25:15,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:25:15,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178260385] [2022-11-21 17:25:15,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:25:15,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:25:15,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:25:15,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:25:15,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:25:15,873 INFO L87 Difference]: Start difference. First operand 12139 states and 17280 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-21 17:25:17,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:25:20,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:25:56,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:25:58,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:25:59,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:25:59,572 INFO L93 Difference]: Finished difference Result 35429 states and 50942 transitions. [2022-11-21 17:25:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:25:59,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 210 [2022-11-21 17:25:59,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:25:59,725 INFO L225 Difference]: With dead ends: 35429 [2022-11-21 17:25:59,726 INFO L226 Difference]: Without dead ends: 24709 [2022-11-21 17:25:59,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:25:59,777 INFO L413 NwaCegarLoop]: 5498 mSDtfsCounter, 7113 mSDsluCounter, 5636 mSDsCounter, 0 mSdLazyCounter, 6303 mSolverCounterSat, 3271 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8200 SdHoareTripleChecker+Valid, 11134 SdHoareTripleChecker+Invalid, 9576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3271 IncrementalHoareTripleChecker+Valid, 6303 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.3s IncrementalHoareTripleChecker+Time [2022-11-21 17:25:59,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8200 Valid, 11134 Invalid, 9576 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3271 Valid, 6303 Invalid, 2 Unknown, 0 Unchecked, 42.3s Time] [2022-11-21 17:25:59,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24709 states. [2022-11-21 17:26:00,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24709 to 22658. [2022-11-21 17:26:01,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22658 states, 15467 states have (on average 1.2982478825887374) internal successors, (20080), 15904 states have internal predecessors, (20080), 6078 states have call successors, (6078), 1085 states have call predecessors, (6078), 1110 states have return successors, (6153), 6013 states have call predecessors, (6153), 6075 states have call successors, (6153) [2022-11-21 17:26:01,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22658 states to 22658 states and 32311 transitions. [2022-11-21 17:26:01,120 INFO L78 Accepts]: Start accepts. Automaton has 22658 states and 32311 transitions. Word has length 210 [2022-11-21 17:26:01,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:26:01,121 INFO L495 AbstractCegarLoop]: Abstraction has 22658 states and 32311 transitions. [2022-11-21 17:26:01,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-21 17:26:01,122 INFO L276 IsEmpty]: Start isEmpty. Operand 22658 states and 32311 transitions. [2022-11-21 17:26:01,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-21 17:26:01,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:26:01,128 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:26:01,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:26:01,128 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:26:01,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:26:01,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1880288501, now seen corresponding path program 1 times [2022-11-21 17:26:01,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:26:01,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079611721] [2022-11-21 17:26:01,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:01,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:26:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:26:03,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:26:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:26:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:26:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:26:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 17:26:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 17:26:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 17:26:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 17:26:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 17:26:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 17:26:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:26:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:26:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-21 17:26:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-21 17:26:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-21 17:26:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-21 17:26:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-21 17:26:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-21 17:26:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-21 17:26:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:03,963 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-11-21 17:26:03,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:26:03,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079611721] [2022-11-21 17:26:03,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079611721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:26:03,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:26:03,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:26:03,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656647811] [2022-11-21 17:26:03,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:26:03,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:26:03,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:26:03,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:26:03,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:26:03,966 INFO L87 Difference]: Start difference. First operand 22658 states and 32311 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 17:26:06,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:26:45,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:26:45,621 INFO L93 Difference]: Finished difference Result 24701 states and 35637 transitions. [2022-11-21 17:26:45,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:26:45,621 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 210 [2022-11-21 17:26:45,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:26:45,775 INFO L225 Difference]: With dead ends: 24701 [2022-11-21 17:26:45,775 INFO L226 Difference]: Without dead ends: 24699 [2022-11-21 17:26:45,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:26:45,799 INFO L413 NwaCegarLoop]: 3690 mSDtfsCounter, 5882 mSDsluCounter, 8054 mSDsCounter, 0 mSdLazyCounter, 7040 mSolverCounterSat, 2723 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6472 SdHoareTripleChecker+Valid, 11744 SdHoareTripleChecker+Invalid, 9764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2723 IncrementalHoareTripleChecker+Valid, 7040 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.8s IncrementalHoareTripleChecker+Time [2022-11-21 17:26:45,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6472 Valid, 11744 Invalid, 9764 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2723 Valid, 7040 Invalid, 1 Unknown, 0 Unchecked, 39.8s Time] [2022-11-21 17:26:45,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24699 states. [2022-11-21 17:26:47,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24699 to 22662. [2022-11-21 17:26:47,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22662 states, 15470 states have (on average 1.2981900452488688) internal successors, (20083), 15907 states have internal predecessors, (20083), 6078 states have call successors, (6078), 1086 states have call predecessors, (6078), 1111 states have return successors, (6153), 6013 states have call predecessors, (6153), 6075 states have call successors, (6153) [2022-11-21 17:26:47,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22662 states to 22662 states and 32314 transitions. [2022-11-21 17:26:47,365 INFO L78 Accepts]: Start accepts. Automaton has 22662 states and 32314 transitions. Word has length 210 [2022-11-21 17:26:47,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:26:47,366 INFO L495 AbstractCegarLoop]: Abstraction has 22662 states and 32314 transitions. [2022-11-21 17:26:47,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 17:26:47,367 INFO L276 IsEmpty]: Start isEmpty. Operand 22662 states and 32314 transitions. [2022-11-21 17:26:47,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-21 17:26:47,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:26:47,372 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:26:47,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:26:47,373 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:26:47,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:26:47,373 INFO L85 PathProgramCache]: Analyzing trace with hash -197546783, now seen corresponding path program 1 times [2022-11-21 17:26:47,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:26:47,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867622154] [2022-11-21 17:26:47,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:47,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:26:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:26:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:26:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:26:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:26:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:26:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 17:26:49,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 17:26:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 17:26:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 17:26:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 17:26:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 17:26:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:26:49,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:26:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-21 17:26:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-21 17:26:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-21 17:26:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-21 17:26:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:26:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-21 17:26:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-21 17:26:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-21 17:26:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-21 17:26:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:49,994 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-11-21 17:26:49,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:26:49,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867622154] [2022-11-21 17:26:49,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867622154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:26:49,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:26:49,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:26:49,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882678964] [2022-11-21 17:26:49,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:26:49,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:26:49,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:26:49,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:26:49,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:26:49,997 INFO L87 Difference]: Start difference. First operand 22662 states and 32314 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-21 17:26:52,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:27:29,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:27:30,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:27:31,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:27:33,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:27:33,190 INFO L93 Difference]: Finished difference Result 24705 states and 35640 transitions. [2022-11-21 17:27:33,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:27:33,191 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 215 [2022-11-21 17:27:33,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:27:33,343 INFO L225 Difference]: With dead ends: 24705 [2022-11-21 17:27:33,344 INFO L226 Difference]: Without dead ends: 24703 [2022-11-21 17:27:33,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:27:33,367 INFO L413 NwaCegarLoop]: 3666 mSDtfsCounter, 5893 mSDsluCounter, 8006 mSDsCounter, 0 mSdLazyCounter, 7043 mSolverCounterSat, 2732 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6483 SdHoareTripleChecker+Valid, 11672 SdHoareTripleChecker+Invalid, 9776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2732 IncrementalHoareTripleChecker+Valid, 7043 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.4s IncrementalHoareTripleChecker+Time [2022-11-21 17:27:33,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6483 Valid, 11672 Invalid, 9776 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2732 Valid, 7043 Invalid, 1 Unknown, 0 Unchecked, 41.4s Time] [2022-11-21 17:27:33,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24703 states. [2022-11-21 17:27:34,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24703 to 22666. [2022-11-21 17:27:34,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22666 states, 15473 states have (on average 1.2981322303367155) internal successors, (20086), 15910 states have internal predecessors, (20086), 6078 states have call successors, (6078), 1087 states have call predecessors, (6078), 1112 states have return successors, (6153), 6013 states have call predecessors, (6153), 6075 states have call successors, (6153) [2022-11-21 17:27:34,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22666 states to 22666 states and 32317 transitions. [2022-11-21 17:27:34,938 INFO L78 Accepts]: Start accepts. Automaton has 22666 states and 32317 transitions. Word has length 215 [2022-11-21 17:27:34,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:27:34,939 INFO L495 AbstractCegarLoop]: Abstraction has 22666 states and 32317 transitions. [2022-11-21 17:27:34,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-21 17:27:34,940 INFO L276 IsEmpty]: Start isEmpty. Operand 22666 states and 32317 transitions. [2022-11-21 17:27:34,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-21 17:27:34,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:27:34,954 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:27:34,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 17:27:34,955 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:27:34,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:27:34,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1740171211, now seen corresponding path program 1 times [2022-11-21 17:27:34,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:27:34,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525867055] [2022-11-21 17:27:34,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:27:34,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:27:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:27:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:27:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:27:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:27:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:27:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:27:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:27:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:27:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:27:37,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:27:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 17:27:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:27:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 17:27:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:27:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 17:27:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:27:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 17:27:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:27:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 17:27:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:27:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 17:27:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:27:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:27:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:27:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:27:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-21 17:27:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-21 17:27:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-21 17:27:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-21 17:27:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:27:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-21 17:27:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-21 17:27:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-21 17:27:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-21 17:27:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-11-21 17:27:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:27:37,608 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2022-11-21 17:27:37,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:27:37,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525867055] [2022-11-21 17:27:37,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525867055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:27:37,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:27:37,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:27:37,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060169078] [2022-11-21 17:27:37,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:27:37,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:27:37,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:27:37,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:27:37,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:27:37,611 INFO L87 Difference]: Start difference. First operand 22666 states and 32317 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-21 17:27:39,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:28:16,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:28:18,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:28:18,943 INFO L93 Difference]: Finished difference Result 24709 states and 35643 transitions. [2022-11-21 17:28:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:28:18,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 220 [2022-11-21 17:28:18,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:28:19,073 INFO L225 Difference]: With dead ends: 24709 [2022-11-21 17:28:19,073 INFO L226 Difference]: Without dead ends: 24705 [2022-11-21 17:28:19,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:28:19,089 INFO L413 NwaCegarLoop]: 3692 mSDtfsCounter, 5873 mSDsluCounter, 8058 mSDsCounter, 0 mSdLazyCounter, 7043 mSolverCounterSat, 2719 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6463 SdHoareTripleChecker+Valid, 11750 SdHoareTripleChecker+Invalid, 9763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2719 IncrementalHoareTripleChecker+Valid, 7043 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.3s IncrementalHoareTripleChecker+Time [2022-11-21 17:28:19,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6463 Valid, 11750 Invalid, 9763 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2719 Valid, 7043 Invalid, 1 Unknown, 0 Unchecked, 39.3s Time] [2022-11-21 17:28:19,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24705 states. [2022-11-21 17:28:20,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24705 to 22668. [2022-11-21 17:28:20,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22668 states, 15475 states have (on average 1.2980290791599354) internal successors, (20087), 15911 states have internal predecessors, (20087), 6078 states have call successors, (6078), 1088 states have call predecessors, (6078), 1112 states have return successors, (6153), 6013 states have call predecessors, (6153), 6075 states have call successors, (6153) [2022-11-21 17:28:20,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22668 states to 22668 states and 32318 transitions. [2022-11-21 17:28:20,574 INFO L78 Accepts]: Start accepts. Automaton has 22668 states and 32318 transitions. Word has length 220 [2022-11-21 17:28:20,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:28:20,575 INFO L495 AbstractCegarLoop]: Abstraction has 22668 states and 32318 transitions. [2022-11-21 17:28:20,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-21 17:28:20,576 INFO L276 IsEmpty]: Start isEmpty. Operand 22668 states and 32318 transitions. [2022-11-21 17:28:20,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-21 17:28:20,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:28:20,583 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:28:20,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 17:28:20,584 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:28:20,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:20,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1705461471, now seen corresponding path program 1 times [2022-11-21 17:28:20,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:20,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721660217] [2022-11-21 17:28:20,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:20,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:22,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:28:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:22,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:28:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:22,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:28:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:22,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:28:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:22,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:28:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:22,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:28:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:22,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:28:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:28:23,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:28:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:28:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 17:28:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:28:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 17:28:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:28:23,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 17:28:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:28:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 17:28:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:28:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 17:28:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:28:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 17:28:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:28:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:28:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:28:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:28:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-21 17:28:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-21 17:28:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-21 17:28:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-21 17:28:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:28:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-21 17:28:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-21 17:28:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-21 17:28:23,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-21 17:28:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-11-21 17:28:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-11-21 17:28:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,285 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2022-11-21 17:28:23,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:23,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721660217] [2022-11-21 17:28:23,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721660217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:23,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:23,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:28:23,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892777931] [2022-11-21 17:28:23,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:23,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:28:23,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:23,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:28:23,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:28:23,288 INFO L87 Difference]: Start difference. First operand 22668 states and 32318 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-21 17:28:25,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:29:18,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:29:23,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:29:23,349 INFO L93 Difference]: Finished difference Result 30607 states and 43783 transitions. [2022-11-21 17:29:23,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 17:29:23,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 225 [2022-11-21 17:29:23,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:29:23,470 INFO L225 Difference]: With dead ends: 30607 [2022-11-21 17:29:23,470 INFO L226 Difference]: Without dead ends: 28956 [2022-11-21 17:29:23,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:29:23,488 INFO L413 NwaCegarLoop]: 4157 mSDtfsCounter, 6068 mSDsluCounter, 9744 mSDsCounter, 0 mSdLazyCounter, 10863 mSolverCounterSat, 2556 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6904 SdHoareTripleChecker+Valid, 13901 SdHoareTripleChecker+Invalid, 13420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2556 IncrementalHoareTripleChecker+Valid, 10863 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.5s IncrementalHoareTripleChecker+Time [2022-11-21 17:29:23,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6904 Valid, 13901 Invalid, 13420 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2556 Valid, 10863 Invalid, 1 Unknown, 0 Unchecked, 57.5s Time] [2022-11-21 17:29:23,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28956 states. [2022-11-21 17:29:25,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28956 to 26344. [2022-11-21 17:29:25,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26344 states, 17784 states have (on average 1.2824448942869995) internal successors, (22807), 18253 states have internal predecessors, (22807), 7198 states have call successors, (7198), 1334 states have call predecessors, (7198), 1360 states have return successors, (7264), 7140 states have call predecessors, (7264), 7198 states have call successors, (7264) [2022-11-21 17:29:25,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26344 states to 26344 states and 37269 transitions. [2022-11-21 17:29:25,763 INFO L78 Accepts]: Start accepts. Automaton has 26344 states and 37269 transitions. Word has length 225 [2022-11-21 17:29:25,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:29:25,764 INFO L495 AbstractCegarLoop]: Abstraction has 26344 states and 37269 transitions. [2022-11-21 17:29:25,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-21 17:29:25,764 INFO L276 IsEmpty]: Start isEmpty. Operand 26344 states and 37269 transitions. [2022-11-21 17:29:25,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-21 17:29:25,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:29:25,774 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:29:25,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 17:29:25,774 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:29:25,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:25,775 INFO L85 PathProgramCache]: Analyzing trace with hash -469012044, now seen corresponding path program 1 times [2022-11-21 17:29:25,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:25,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849563365] [2022-11-21 17:29:25,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:25,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:29:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:29:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:29:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:29:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:29:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:29:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:29:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:29:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:29:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:29:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 17:29:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:29:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 17:29:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:29:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 17:29:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:29:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 17:29:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:29:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 17:29:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:29:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 17:29:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:29:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:29:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:29:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:29:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-21 17:29:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-21 17:29:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-21 17:29:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 17:29:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-21 17:29:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:29:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-21 17:29:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-21 17:29:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-11-21 17:29:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:27,247 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-11-21 17:29:27,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:29:27,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849563365] [2022-11-21 17:29:27,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849563365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:29:27,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:29:27,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:29:27,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697944764] [2022-11-21 17:29:27,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:29:27,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:29:27,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:29:27,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:29:27,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:29:27,250 INFO L87 Difference]: Start difference. First operand 26344 states and 37269 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-21 17:29:29,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:29:31,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:30:08,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:30:08,792 INFO L93 Difference]: Finished difference Result 61957 states and 88235 transitions. [2022-11-21 17:30:08,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:30:08,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 233 [2022-11-21 17:30:08,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:30:09,032 INFO L225 Difference]: With dead ends: 61957 [2022-11-21 17:30:09,033 INFO L226 Difference]: Without dead ends: 37032 [2022-11-21 17:30:09,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:30:09,118 INFO L413 NwaCegarLoop]: 5785 mSDtfsCounter, 4460 mSDsluCounter, 5910 mSDsCounter, 0 mSdLazyCounter, 6151 mSolverCounterSat, 1668 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5292 SdHoareTripleChecker+Valid, 11695 SdHoareTripleChecker+Invalid, 7821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1668 IncrementalHoareTripleChecker+Valid, 6151 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:30:09,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5292 Valid, 11695 Invalid, 7821 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1668 Valid, 6151 Invalid, 2 Unknown, 0 Unchecked, 39.1s Time] [2022-11-21 17:30:09,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37032 states. [2022-11-21 17:30:10,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37032 to 33616. [2022-11-21 17:30:11,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33616 states, 22876 states have (on average 1.288031124322434) internal successors, (29465), 23473 states have internal predecessors, (29465), 8956 states have call successors, (8956), 1756 states have call predecessors, (8956), 1782 states have return successors, (9022), 8880 states have call predecessors, (9022), 8956 states have call successors, (9022) [2022-11-21 17:30:11,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33616 states to 33616 states and 47443 transitions. [2022-11-21 17:30:11,130 INFO L78 Accepts]: Start accepts. Automaton has 33616 states and 47443 transitions. Word has length 233 [2022-11-21 17:30:11,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:30:11,131 INFO L495 AbstractCegarLoop]: Abstraction has 33616 states and 47443 transitions. [2022-11-21 17:30:11,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-21 17:30:11,132 INFO L276 IsEmpty]: Start isEmpty. Operand 33616 states and 47443 transitions. [2022-11-21 17:30:11,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-11-21 17:30:11,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:30:11,157 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 12, 12, 12, 12, 12, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:30:11,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 17:30:11,158 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:30:11,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:30:11,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1548102561, now seen corresponding path program 1 times [2022-11-21 17:30:11,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:30:11,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418675078] [2022-11-21 17:30:11,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:30:11,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:30:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:30:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:30:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:30:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:30:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:30:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 17:30:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 17:30:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 17:30:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 17:30:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 17:30:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 17:30:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:30:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:30:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-21 17:30:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-21 17:30:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-21 17:30:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 17:30:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-21 17:30:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-21 17:30:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-21 17:30:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-21 17:30:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:30:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:30:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-11-21 17:30:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:30:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:30:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-11-21 17:30:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-11-21 17:30:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-11-21 17:30:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:12,610 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2022-11-21 17:30:12,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:30:12,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418675078] [2022-11-21 17:30:12,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418675078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:30:12,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:30:12,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:30:12,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102094823] [2022-11-21 17:30:12,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:30:12,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:30:12,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:30:12,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:30:12,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:30:12,614 INFO L87 Difference]: Start difference. First operand 33616 states and 47443 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-21 17:30:14,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:30:16,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:30:54,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:30:54,799 INFO L93 Difference]: Finished difference Result 77274 states and 109831 transitions. [2022-11-21 17:30:54,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:30:54,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 307 [2022-11-21 17:30:54,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:30:54,961 INFO L225 Difference]: With dead ends: 77274 [2022-11-21 17:30:54,961 INFO L226 Difference]: Without dead ends: 43495 [2022-11-21 17:30:55,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:30:55,044 INFO L413 NwaCegarLoop]: 5780 mSDtfsCounter, 4477 mSDsluCounter, 5926 mSDsCounter, 0 mSdLazyCounter, 6142 mSolverCounterSat, 1661 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5310 SdHoareTripleChecker+Valid, 11706 SdHoareTripleChecker+Invalid, 7805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1661 IncrementalHoareTripleChecker+Valid, 6142 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:30:55,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5310 Valid, 11706 Invalid, 7805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1661 Valid, 6142 Invalid, 2 Unknown, 0 Unchecked, 39.2s Time] [2022-11-21 17:30:55,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43495 states. [2022-11-21 17:30:57,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43495 to 39474. [2022-11-21 17:30:57,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39474 states, 26968 states have (on average 1.2904553544942154) internal successors, (34801), 27668 states have internal predecessors, (34801), 10386 states have call successors, (10386), 2092 states have call predecessors, (10386), 2118 states have return successors, (10452), 10294 states have call predecessors, (10452), 10386 states have call successors, (10452) [2022-11-21 17:30:57,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39474 states to 39474 states and 55639 transitions. [2022-11-21 17:30:57,532 INFO L78 Accepts]: Start accepts. Automaton has 39474 states and 55639 transitions. Word has length 307 [2022-11-21 17:30:57,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:30:57,533 INFO L495 AbstractCegarLoop]: Abstraction has 39474 states and 55639 transitions. [2022-11-21 17:30:57,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-21 17:30:57,534 INFO L276 IsEmpty]: Start isEmpty. Operand 39474 states and 55639 transitions. [2022-11-21 17:30:57,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-11-21 17:30:57,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:30:57,554 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 12, 12, 12, 12, 12, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:30:57,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 17:30:57,555 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:30:57,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:30:57,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1153735775, now seen corresponding path program 1 times [2022-11-21 17:30:57,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:30:57,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291327487] [2022-11-21 17:30:57,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:30:57,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:30:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:30:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:30:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:30:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:30:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:30:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 17:30:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 17:30:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 17:30:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 17:30:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 17:30:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 17:30:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:30:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:30:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-21 17:30:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-21 17:30:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-21 17:30:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 17:30:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-21 17:30:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-21 17:30:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-21 17:30:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-21 17:30:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:30:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:30:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-11-21 17:30:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:30:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:30:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-11-21 17:30:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-11-21 17:30:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-11-21 17:30:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:58,984 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2022-11-21 17:30:58,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:30:58,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291327487] [2022-11-21 17:30:58,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291327487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:30:58,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:30:58,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:30:58,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464128132] [2022-11-21 17:30:58,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:30:58,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:30:58,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:30:58,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:30:58,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:30:58,987 INFO L87 Difference]: Start difference. First operand 39474 states and 55639 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-21 17:31:01,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:31:03,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:31:47,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:31:47,038 INFO L93 Difference]: Finished difference Result 97290 states and 138076 transitions. [2022-11-21 17:31:47,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:31:47,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 307 [2022-11-21 17:31:47,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:31:47,393 INFO L225 Difference]: With dead ends: 97290 [2022-11-21 17:31:47,393 INFO L226 Difference]: Without dead ends: 59235 [2022-11-21 17:31:47,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:31:47,480 INFO L413 NwaCegarLoop]: 6307 mSDtfsCounter, 5792 mSDsluCounter, 5646 mSDsCounter, 0 mSdLazyCounter, 6731 mSolverCounterSat, 2330 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6814 SdHoareTripleChecker+Valid, 11953 SdHoareTripleChecker+Invalid, 9063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2330 IncrementalHoareTripleChecker+Valid, 6731 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.3s IncrementalHoareTripleChecker+Time [2022-11-21 17:31:47,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6814 Valid, 11953 Invalid, 9063 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2330 Valid, 6731 Invalid, 2 Unknown, 0 Unchecked, 44.3s Time] [2022-11-21 17:31:47,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59235 states. [2022-11-21 17:31:50,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59235 to 53500. [2022-11-21 17:31:50,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53500 states, 36360 states have (on average 1.2847909790979097) internal successors, (46715), 37288 states have internal predecessors, (46715), 14240 states have call successors, (14240), 2872 states have call predecessors, (14240), 2898 states have return successors, (14306), 14122 states have call predecessors, (14306), 14240 states have call successors, (14306) [2022-11-21 17:31:50,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53500 states to 53500 states and 75261 transitions. [2022-11-21 17:31:50,431 INFO L78 Accepts]: Start accepts. Automaton has 53500 states and 75261 transitions. Word has length 307 [2022-11-21 17:31:50,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:31:50,432 INFO L495 AbstractCegarLoop]: Abstraction has 53500 states and 75261 transitions. [2022-11-21 17:31:50,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-21 17:31:50,432 INFO L276 IsEmpty]: Start isEmpty. Operand 53500 states and 75261 transitions. [2022-11-21 17:31:50,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-11-21 17:31:50,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:31:50,471 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 12, 12, 12, 12, 12, 12, 10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:31:50,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 17:31:50,471 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:31:50,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:31:50,472 INFO L85 PathProgramCache]: Analyzing trace with hash 630580578, now seen corresponding path program 1 times [2022-11-21 17:31:50,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:31:50,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515455596] [2022-11-21 17:31:50,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:31:50,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:31:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:51,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:31:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:31:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:31:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:31:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:31:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 17:31:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 17:31:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 17:31:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 17:31:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 17:31:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 17:31:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:31:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:31:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-21 17:31:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-21 17:31:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-21 17:31:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 17:31:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-21 17:31:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-21 17:31:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-21 17:31:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-21 17:31:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:31:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:31:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-11-21 17:31:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:31:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:31:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-11-21 17:31:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-11-21 17:31:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-11-21 17:31:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-11-21 17:31:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-11-21 17:31:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-11-21 17:31:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-11-21 17:31:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:52,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 1189 trivial. 0 not checked. [2022-11-21 17:31:52,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:31:52,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515455596] [2022-11-21 17:31:52,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515455596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:31:52,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:31:52,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:31:52,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099076032] [2022-11-21 17:31:52,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:31:52,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:31:52,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:31:52,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:31:52,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:31:52,326 INFO L87 Difference]: Start difference. First operand 53500 states and 75261 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-21 17:31:54,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:31:56,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:32:34,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:32:35,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:32:35,935 INFO L93 Difference]: Finished difference Result 119362 states and 169130 transitions. [2022-11-21 17:32:35,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:32:35,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 363 [2022-11-21 17:32:35,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:32:36,243 INFO L225 Difference]: With dead ends: 119362 [2022-11-21 17:32:36,244 INFO L226 Difference]: Without dead ends: 67281 [2022-11-21 17:32:36,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:32:36,505 INFO L413 NwaCegarLoop]: 5370 mSDtfsCounter, 4520 mSDsluCounter, 5622 mSDsCounter, 0 mSdLazyCounter, 6080 mSolverCounterSat, 1782 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5355 SdHoareTripleChecker+Valid, 10992 SdHoareTripleChecker+Invalid, 7864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1782 IncrementalHoareTripleChecker+Valid, 6080 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:32:36,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5355 Valid, 10992 Invalid, 7864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1782 Valid, 6080 Invalid, 2 Unknown, 0 Unchecked, 39.6s Time] [2022-11-21 17:32:36,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67281 states. [2022-11-21 17:32:39,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67281 to 60748. [2022-11-21 17:32:39,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60748 states, 41436 states have (on average 1.287696688869582) internal successors, (53357), 42492 states have internal predecessors, (53357), 15992 states have call successors, (15992), 3292 states have call predecessors, (15992), 3318 states have return successors, (16058), 15856 states have call predecessors, (16058), 15992 states have call successors, (16058) [2022-11-21 17:32:40,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60748 states to 60748 states and 85407 transitions. [2022-11-21 17:32:40,082 INFO L78 Accepts]: Start accepts. Automaton has 60748 states and 85407 transitions. Word has length 363 [2022-11-21 17:32:40,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:32:40,083 INFO L495 AbstractCegarLoop]: Abstraction has 60748 states and 85407 transitions. [2022-11-21 17:32:40,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-21 17:32:40,083 INFO L276 IsEmpty]: Start isEmpty. Operand 60748 states and 85407 transitions. [2022-11-21 17:32:40,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-11-21 17:32:40,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:32:40,111 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 12, 12, 12, 12, 12, 12, 10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:32:40,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 17:32:40,111 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:32:40,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:32:40,112 INFO L85 PathProgramCache]: Analyzing trace with hash 236213792, now seen corresponding path program 1 times [2022-11-21 17:32:40,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:32:40,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314120118] [2022-11-21 17:32:40,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:32:40,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:32:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:32:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:32:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:32:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:32:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:32:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 17:32:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 17:32:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 17:32:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 17:32:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 17:32:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 17:32:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:32:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:32:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-21 17:32:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-21 17:32:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-21 17:32:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 17:32:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-21 17:32:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-21 17:32:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-21 17:32:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-21 17:32:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:32:41,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:32:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-11-21 17:32:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:32:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:32:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-11-21 17:32:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-11-21 17:32:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-11-21 17:32:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-11-21 17:32:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:41,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:42,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-11-21 17:32:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:42,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-11-21 17:32:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:42,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-11-21 17:32:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:42,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 1189 trivial. 0 not checked. [2022-11-21 17:32:42,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:32:42,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314120118] [2022-11-21 17:32:42,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314120118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:32:42,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:32:42,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:32:42,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86047557] [2022-11-21 17:32:42,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:32:42,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:32:42,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:32:42,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:32:42,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:32:42,026 INFO L87 Difference]: Start difference. First operand 60748 states and 85407 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-21 17:32:44,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:32:46,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []