./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.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_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7437c6fbbfb5f62948bcf71bcd273ee75a8686136d3aade9bfd2c415a67f0e82 --- 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 [2022-11-22 02:12:06,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:12:06,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:12:06,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:12:06,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:12:06,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:12:06,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:12:06,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:12:06,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:12:06,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:12:06,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:12:06,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:12:06,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:12:06,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:12:06,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:12:06,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:12:06,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:12:06,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:12:06,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:12:06,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:12:06,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:12:06,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:12:06,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:12:06,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:12:06,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:12:06,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:12:06,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:12:06,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:12:06,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:12:06,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:12:06,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:12:06,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:12:06,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:12:06,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:12:06,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:12:06,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:12:06,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:12:06,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:12:06,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:12:06,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:12:06,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:12:06,379 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:12:06,400 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:12:06,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:12:06,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:12:06,401 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:12:06,402 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:12:06,402 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:12:06,402 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:12:06,402 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:12:06,402 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:12:06,403 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:12:06,403 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:12:06,403 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:12:06,403 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:12:06,403 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:12:06,404 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:12:06,404 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:12:06,404 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:12:06,404 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:12:06,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:12:06,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:12:06,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:12:06,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:12:06,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:12:06,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:12:06,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:12:06,407 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:12:06,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:12:06,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:12:06,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:12:06,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:12:06,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:12:06,408 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:12:06,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:12:06,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:12:06,409 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:12:06,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:12:06,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:12:06,409 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:12:06,409 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_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7437c6fbbfb5f62948bcf71bcd273ee75a8686136d3aade9bfd2c415a67f0e82 [2022-11-22 02:12:06,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:12:06,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:12:06,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:12:06,719 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:12:06,720 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:12:06,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-22 02:12:09,835 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:12:10,824 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:12:10,825 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-22 02:12:10,914 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/data/87d6e5e2b/6abd4a398b0c4e1f9f9c0b2529dbf1bb/FLAG58e2e006c [2022-11-22 02:12:10,938 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/data/87d6e5e2b/6abd4a398b0c4e1f9f9c0b2529dbf1bb [2022-11-22 02:12:10,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:12:10,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:12:10,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:12:10,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:12:10,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:12:10,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:12:10" (1/1) ... [2022-11-22 02:12:10,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@202cff9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:10, skipping insertion in model container [2022-11-22 02:12:10,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:12:10" (1/1) ... [2022-11-22 02:12:10,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:12:11,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:12:19,583 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_36781f1a-0f25-40ad-aba0-9d61dc1136d3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[901817,901830] [2022-11-22 02:12:19,587 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_36781f1a-0f25-40ad-aba0-9d61dc1136d3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[901983,901996] [2022-11-22 02:12:19,588 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_36781f1a-0f25-40ad-aba0-9d61dc1136d3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[902147,902160] [2022-11-22 02:12:19,589 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_36781f1a-0f25-40ad-aba0-9d61dc1136d3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[902312,902325] [2022-11-22 02:12:19,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:12:19,709 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:12:20,799 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_36781f1a-0f25-40ad-aba0-9d61dc1136d3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[901817,901830] [2022-11-22 02:12:20,800 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_36781f1a-0f25-40ad-aba0-9d61dc1136d3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[901983,901996] [2022-11-22 02:12:20,801 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_36781f1a-0f25-40ad-aba0-9d61dc1136d3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[902147,902160] [2022-11-22 02:12:20,802 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_36781f1a-0f25-40ad-aba0-9d61dc1136d3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[902312,902325] [2022-11-22 02:12:20,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:12:21,260 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:12:21,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:21 WrapperNode [2022-11-22 02:12:21,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:12:21,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:12:21,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:12:21,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:12:21,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:21" (1/1) ... [2022-11-22 02:12:21,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:21" (1/1) ... [2022-11-22 02:12:22,660 INFO L138 Inliner]: procedures = 716, calls = 16195, calls flagged for inlining = 391, calls inlined = 338, statements flattened = 28985 [2022-11-22 02:12:22,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:12:22,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:12:22,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:12:22,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:12:22,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:21" (1/1) ... [2022-11-22 02:12:22,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:21" (1/1) ... [2022-11-22 02:12:23,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:21" (1/1) ... [2022-11-22 02:12:23,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:21" (1/1) ... [2022-11-22 02:12:23,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:21" (1/1) ... [2022-11-22 02:12:24,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:21" (1/1) ... [2022-11-22 02:12:24,246 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:21" (1/1) ... [2022-11-22 02:12:24,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:21" (1/1) ... [2022-11-22 02:12:24,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:12:24,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:12:24,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:12:24,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:12:24,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:21" (1/1) ... [2022-11-22 02:12:24,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:12:24,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:12:24,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:12:24,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:12:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-22 02:12:24,613 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-22 02:12:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2022-11-22 02:12:24,614 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2022-11-22 02:12:24,614 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-22 02:12:24,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-22 02:12:24,614 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2022-11-22 02:12:24,614 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2022-11-22 02:12:24,614 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2022-11-22 02:12:24,615 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2022-11-22 02:12:24,615 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-22 02:12:24,615 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-22 02:12:24,615 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-22 02:12:24,615 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-22 02:12:24,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 02:12:24,616 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 02:12:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2022-11-22 02:12:24,616 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2022-11-22 02:12:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-22 02:12:24,616 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-22 02:12:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 02:12:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 02:12:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-22 02:12:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-22 02:12:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2022-11-22 02:12:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2022-11-22 02:12:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 02:12:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 02:12:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2022-11-22 02:12:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2022-11-22 02:12:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2022-11-22 02:12:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2022-11-22 02:12:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2022-11-22 02:12:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2022-11-22 02:12:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 02:12:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 02:12:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-22 02:12:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-22 02:12:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-22 02:12:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-22 02:12:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2022-11-22 02:12:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2022-11-22 02:12:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-22 02:12:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-22 02:12:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2022-11-22 02:12:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2022-11-22 02:12:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 02:12:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 02:12:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 02:12:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 02:12:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2022-11-22 02:12:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2022-11-22 02:12:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2022-11-22 02:12:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2022-11-22 02:12:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 02:12:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 02:12:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2022-11-22 02:12:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2022-11-22 02:12:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2022-11-22 02:12:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2022-11-22 02:12:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 02:12:24,623 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 02:12:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2022-11-22 02:12:24,623 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2022-11-22 02:12:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-22 02:12:24,623 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-22 02:12:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2022-11-22 02:12:24,624 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2022-11-22 02:12:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-22 02:12:24,624 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-22 02:12:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 02:12:24,624 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 02:12:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 02:12:24,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 02:12:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 02:12:24,625 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 02:12:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 02:12:24,625 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 02:12:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 02:12:24,626 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 02:12:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 02:12:24,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 02:12:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 02:12:24,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 02:12:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 02:12:24,627 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 02:12:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-22 02:12:24,627 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-22 02:12:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:12:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-22 02:12:24,627 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-22 02:12:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2022-11-22 02:12:24,628 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2022-11-22 02:12:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2022-11-22 02:12:24,628 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2022-11-22 02:12:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2022-11-22 02:12:24,628 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2022-11-22 02:12:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-22 02:12:24,629 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-22 02:12:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-22 02:12:24,629 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-22 02:12:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2022-11-22 02:12:24,629 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2022-11-22 02:12:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 02:12:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 02:12:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2022-11-22 02:12:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2022-11-22 02:12:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2022-11-22 02:12:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2022-11-22 02:12:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2022-11-22 02:12:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2022-11-22 02:12:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 02:12:24,631 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 02:12:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 02:12:24,631 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 02:12:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2022-11-22 02:12:24,631 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2022-11-22 02:12:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2022-11-22 02:12:24,632 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2022-11-22 02:12:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 02:12:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-22 02:12:24,632 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-22 02:12:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2022-11-22 02:12:24,632 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2022-11-22 02:12:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2022-11-22 02:12:24,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2022-11-22 02:12:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2022-11-22 02:12:24,633 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2022-11-22 02:12:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 02:12:24,633 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 02:12:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2022-11-22 02:12:24,634 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2022-11-22 02:12:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 02:12:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 02:12:24,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 02:12:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2022-11-22 02:12:24,634 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2022-11-22 02:12:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:12:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 02:12:24,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 02:12:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2022-11-22 02:12:24,635 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2022-11-22 02:12:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-22 02:12:24,635 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-22 02:12:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2022-11-22 02:12:24,636 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2022-11-22 02:12:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 02:12:24,636 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 02:12:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2022-11-22 02:12:24,636 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2022-11-22 02:12:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2022-11-22 02:12:24,636 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2022-11-22 02:12:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 02:12:24,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 02:12:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2022-11-22 02:12:24,637 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2022-11-22 02:12:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-22 02:12:24,637 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-22 02:12:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 02:12:24,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 02:12:24,638 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-22 02:12:24,638 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-22 02:12:24,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 02:12:24,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 02:12:24,638 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2022-11-22 02:12:24,639 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2022-11-22 02:12:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2022-11-22 02:12:24,639 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2022-11-22 02:12:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-22 02:12:24,639 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-22 02:12:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 02:12:24,639 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 02:12:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-22 02:12:24,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-22 02:12:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2022-11-22 02:12:24,640 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2022-11-22 02:12:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-22 02:12:24,640 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-22 02:12:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2022-11-22 02:12:24,641 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2022-11-22 02:12:24,641 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2022-11-22 02:12:24,641 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2022-11-22 02:12:24,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:12:24,641 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2022-11-22 02:12:24,641 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2022-11-22 02:12:24,641 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-22 02:12:24,642 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-22 02:12:24,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:12:24,642 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-22 02:12:24,642 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-22 02:12:24,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 02:12:24,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 02:12:24,642 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 02:12:24,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 02:12:24,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:12:24,643 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2022-11-22 02:12:24,643 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2022-11-22 02:12:24,643 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 02:12:24,643 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-22 02:12:24,643 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-22 02:12:24,644 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:12:24,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:12:24,644 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2022-11-22 02:12:24,644 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2022-11-22 02:12:24,644 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-22 02:12:24,644 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-22 02:12:24,644 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2022-11-22 02:12:24,645 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2022-11-22 02:12:24,645 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2022-11-22 02:12:24,645 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2022-11-22 02:12:24,645 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 02:12:24,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 02:12:24,645 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2022-11-22 02:12:24,645 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2022-11-22 02:12:24,646 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2022-11-22 02:12:24,646 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2022-11-22 02:12:24,646 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2022-11-22 02:12:24,646 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2022-11-22 02:12:24,646 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-22 02:12:24,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-22 02:12:24,646 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-22 02:12:24,647 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-22 02:12:24,647 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 02:12:24,647 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 02:12:24,647 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2022-11-22 02:12:24,647 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2022-11-22 02:12:24,647 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 02:12:24,647 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 02:12:24,648 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2022-11-22 02:12:24,648 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2022-11-22 02:12:24,648 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2022-11-22 02:12:24,648 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2022-11-22 02:12:24,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 02:12:24,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 02:12:24,648 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2022-11-22 02:12:24,649 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2022-11-22 02:12:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-22 02:12:24,649 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-22 02:12:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-22 02:12:24,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-22 02:12:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-22 02:12:24,650 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-22 02:12:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2022-11-22 02:12:24,650 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2022-11-22 02:12:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-22 02:12:24,650 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-22 02:12:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2022-11-22 02:12:24,650 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2022-11-22 02:12:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 02:12:24,651 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 02:12:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 02:12:24,651 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 02:12:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2022-11-22 02:12:24,651 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2022-11-22 02:12:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2022-11-22 02:12:24,652 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2022-11-22 02:12:24,652 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2022-11-22 02:12:24,652 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2022-11-22 02:12:24,652 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-22 02:12:24,652 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-22 02:12:24,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:12:24,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:12:24,653 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2022-11-22 02:12:24,653 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2022-11-22 02:12:24,653 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-22 02:12:24,653 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-22 02:12:24,653 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-22 02:12:24,653 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-22 02:12:24,653 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2022-11-22 02:12:24,654 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2022-11-22 02:12:24,654 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2022-11-22 02:12:24,654 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2022-11-22 02:12:24,654 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 02:12:24,654 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 02:12:24,654 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2022-11-22 02:12:24,654 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2022-11-22 02:12:24,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 02:12:24,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 02:12:24,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 02:12:24,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 02:12:24,655 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-22 02:12:24,655 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-22 02:12:24,655 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 02:12:24,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 02:12:24,656 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-22 02:12:24,656 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-22 02:12:24,656 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2022-11-22 02:12:24,656 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2022-11-22 02:12:24,656 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 02:12:24,656 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 02:12:24,657 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-22 02:12:24,657 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-22 02:12:24,657 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-22 02:12:24,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 02:12:24,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 02:12:24,657 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2022-11-22 02:12:24,657 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2022-11-22 02:12:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-22 02:12:24,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-22 02:12:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-22 02:12:24,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-22 02:12:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2022-11-22 02:12:24,658 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2022-11-22 02:12:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 02:12:24,659 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 02:12:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 02:12:24,659 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 02:12:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-22 02:12:24,659 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-22 02:12:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2022-11-22 02:12:24,659 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2022-11-22 02:12:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2022-11-22 02:12:24,660 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2022-11-22 02:12:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2022-11-22 02:12:24,660 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2022-11-22 02:12:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 02:12:24,660 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 02:12:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-22 02:12:24,661 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-22 02:12:24,661 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2022-11-22 02:12:24,661 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2022-11-22 02:12:24,661 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-22 02:12:24,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-22 02:12:24,661 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-22 02:12:24,661 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-22 02:12:24,662 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2022-11-22 02:12:24,662 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2022-11-22 02:12:24,662 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2022-11-22 02:12:24,662 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2022-11-22 02:12:24,662 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-22 02:12:24,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-22 02:12:24,662 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 02:12:24,663 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 02:12:24,663 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-22 02:12:24,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-22 02:12:24,663 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-22 02:12:24,663 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-22 02:12:24,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:12:24,663 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 02:12:24,664 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 02:12:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-22 02:12:24,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-22 02:12:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 02:12:24,664 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 02:12:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2022-11-22 02:12:24,664 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2022-11-22 02:12:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:12:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-22 02:12:24,665 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-22 02:12:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-22 02:12:24,665 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-22 02:12:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-22 02:12:24,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-22 02:12:24,666 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2022-11-22 02:12:24,666 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2022-11-22 02:12:24,666 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2022-11-22 02:12:24,666 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2022-11-22 02:12:24,666 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2022-11-22 02:12:24,666 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2022-11-22 02:12:24,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:12:24,667 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2022-11-22 02:12:24,667 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2022-11-22 02:12:24,667 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2022-11-22 02:12:24,667 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2022-11-22 02:12:24,667 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2022-11-22 02:12:24,667 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2022-11-22 02:12:24,668 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-22 02:12:24,668 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-22 02:12:24,668 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2022-11-22 02:12:24,668 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2022-11-22 02:12:24,668 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-22 02:12:24,668 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-22 02:12:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2022-11-22 02:12:24,669 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2022-11-22 02:12:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 02:12:24,669 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 02:12:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-22 02:12:24,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-22 02:12:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 02:12:24,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 02:12:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 02:12:24,670 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 02:12:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2022-11-22 02:12:24,670 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2022-11-22 02:12:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-22 02:12:24,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-22 02:12:24,671 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2022-11-22 02:12:24,671 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2022-11-22 02:12:24,671 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2022-11-22 02:12:24,671 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2022-11-22 02:12:24,671 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2022-11-22 02:12:24,671 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2022-11-22 02:12:24,672 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2022-11-22 02:12:24,672 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2022-11-22 02:12:24,672 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-11-22 02:12:24,672 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-11-22 02:12:24,672 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2022-11-22 02:12:24,672 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2022-11-22 02:12:24,672 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2022-11-22 02:12:24,672 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2022-11-22 02:12:24,673 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2022-11-22 02:12:24,673 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2022-11-22 02:12:24,673 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-22 02:12:24,673 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-22 02:12:24,673 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 02:12:24,673 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 02:12:24,674 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 02:12:24,674 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 02:12:24,674 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2022-11-22 02:12:24,674 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2022-11-22 02:12:24,674 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-22 02:12:24,674 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-22 02:12:24,674 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2022-11-22 02:12:24,675 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2022-11-22 02:12:24,675 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2022-11-22 02:12:24,675 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2022-11-22 02:12:24,675 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2022-11-22 02:12:24,675 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2022-11-22 02:12:24,675 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-22 02:12:24,675 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-22 02:12:24,676 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 02:12:24,676 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 02:12:24,676 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2022-11-22 02:12:24,676 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2022-11-22 02:12:24,676 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-22 02:12:24,676 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-22 02:12:24,676 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-22 02:12:24,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-22 02:12:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 02:12:24,677 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 02:12:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2022-11-22 02:12:24,677 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2022-11-22 02:12:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2022-11-22 02:12:24,677 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2022-11-22 02:12:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:12:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2022-11-22 02:12:24,678 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2022-11-22 02:12:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 02:12:24,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 02:12:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2022-11-22 02:12:24,678 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2022-11-22 02:12:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-22 02:12:24,679 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-22 02:12:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2022-11-22 02:12:24,679 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2022-11-22 02:12:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 02:12:24,679 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 02:12:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2022-11-22 02:12:24,679 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2022-11-22 02:12:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-22 02:12:24,680 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-22 02:12:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-22 02:12:24,680 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-22 02:12:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2022-11-22 02:12:24,680 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2022-11-22 02:12:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-22 02:12:24,680 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-22 02:12:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2022-11-22 02:12:24,681 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2022-11-22 02:12:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2022-11-22 02:12:24,681 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2022-11-22 02:12:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2022-11-22 02:12:24,681 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2022-11-22 02:12:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-22 02:12:24,682 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-22 02:12:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-22 02:12:24,682 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-22 02:12:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_17 [2022-11-22 02:12:24,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_17 [2022-11-22 02:12:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2022-11-22 02:12:24,682 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2022-11-22 02:12:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2022-11-22 02:12:24,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2022-11-22 02:12:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2022-11-22 02:12:24,683 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2022-11-22 02:12:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 02:12:24,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 02:12:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-22 02:12:24,683 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-22 02:12:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 02:12:24,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 02:12:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 02:12:24,684 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 02:12:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2022-11-22 02:12:24,684 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2022-11-22 02:12:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-22 02:12:24,685 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-22 02:12:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 02:12:24,685 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 02:12:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2022-11-22 02:12:24,685 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2022-11-22 02:12:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 02:12:24,685 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 02:12:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-22 02:12:24,686 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-22 02:12:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 02:12:24,686 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 02:12:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-22 02:12:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:12:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-22 02:12:24,686 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-22 02:12:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2022-11-22 02:12:24,687 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2022-11-22 02:12:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 02:12:24,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 02:12:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-22 02:12:27,372 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:12:27,395 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:12:29,054 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 02:13:32,650 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:13:41,130 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:13:41,130 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-22 02:13:41,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:13:41 BoogieIcfgContainer [2022-11-22 02:13:41,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:13:41,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:13:41,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:13:41,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:13:41,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:12:10" (1/3) ... [2022-11-22 02:13:41,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec949ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:13:41, skipping insertion in model container [2022-11-22 02:13:41,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:21" (2/3) ... [2022-11-22 02:13:41,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec949ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:13:41, skipping insertion in model container [2022-11-22 02:13:41,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:13:41" (3/3) ... [2022-11-22 02:13:41,148 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-22 02:13:41,168 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:13:41,168 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:13:41,319 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:13:41,326 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@1536373c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:13:41,326 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:13:41,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 6544 states, 4177 states have (on average 1.3356475939669619) internal successors, (5579), 4283 states have internal predecessors, (5579), 2125 states have call successors, (2125), 243 states have call predecessors, (2125), 242 states have return successors, (2121), 2108 states have call predecessors, (2121), 2121 states have call successors, (2121) [2022-11-22 02:13:41,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-22 02:13:41,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:13:41,359 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-22 02:13:41,359 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:13:41,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:13:41,365 INFO L85 PathProgramCache]: Analyzing trace with hash 249540433, now seen corresponding path program 1 times [2022-11-22 02:13:41,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:13:41,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944351506] [2022-11-22 02:13:41,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:41,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:13:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:45,986 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 02:13:45,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:13:45,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944351506] [2022-11-22 02:13:45,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944351506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:13:45,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:13:45,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:13:45,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538505542] [2022-11-22 02:13:45,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:13:46,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:13:46,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:13:46,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:13:46,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:13:46,062 INFO L87 Difference]: Start difference. First operand has 6544 states, 4177 states have (on average 1.3356475939669619) internal successors, (5579), 4283 states have internal predecessors, (5579), 2125 states have call successors, (2125), 243 states have call predecessors, (2125), 242 states have return successors, (2121), 2108 states have call predecessors, (2121), 2121 states have call successors, (2121) Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 02:13:49,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:01,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:03,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:14,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:16,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:18,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:20,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:23,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:23,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:14:23,959 INFO L93 Difference]: Finished difference Result 17304 states and 25979 transitions. [2022-11-22 02:14:23,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:14:23,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 35 [2022-11-22 02:14:23,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:14:24,133 INFO L225 Difference]: With dead ends: 17304 [2022-11-22 02:14:24,133 INFO L226 Difference]: Without dead ends: 10764 [2022-11-22 02:14:24,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:14:24,250 INFO L413 NwaCegarLoop]: 10827 mSDtfsCounter, 6303 mSDsluCounter, 30687 mSDsCounter, 0 mSdLazyCounter, 3079 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6306 SdHoareTripleChecker+Valid, 41514 SdHoareTripleChecker+Invalid, 3088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3079 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:14:24,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6306 Valid, 41514 Invalid, 3088 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3079 Invalid, 7 Unknown, 0 Unchecked, 36.7s Time] [2022-11-22 02:14:24,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10764 states. [2022-11-22 02:14:25,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10764 to 10756. [2022-11-22 02:14:25,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10756 states, 6830 states have (on average 1.32796486090776) internal successors, (9070), 6992 states have internal predecessors, (9070), 3498 states have call successors, (3498), 429 states have call predecessors, (3498), 427 states have return successors, (3492), 3477 states have call predecessors, (3492), 3492 states have call successors, (3492) [2022-11-22 02:14:25,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10756 states to 10756 states and 16060 transitions. [2022-11-22 02:14:25,671 INFO L78 Accepts]: Start accepts. Automaton has 10756 states and 16060 transitions. Word has length 35 [2022-11-22 02:14:25,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:14:25,673 INFO L495 AbstractCegarLoop]: Abstraction has 10756 states and 16060 transitions. [2022-11-22 02:14:25,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 02:14:25,674 INFO L276 IsEmpty]: Start isEmpty. Operand 10756 states and 16060 transitions. [2022-11-22 02:14:25,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-22 02:14:25,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:14:25,678 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-22 02:14:25,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:14:25,678 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:14:25,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:14:25,679 INFO L85 PathProgramCache]: Analyzing trace with hash -725351494, now seen corresponding path program 1 times [2022-11-22 02:14:25,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:14:25,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545665821] [2022-11-22 02:14:25,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:14:25,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:14:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:14:29,302 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 02:14:29,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:14:29,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545665821] [2022-11-22 02:14:29,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545665821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:14:29,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:14:29,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:14:29,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235047480] [2022-11-22 02:14:29,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:14:29,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:14:29,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:14:29,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:14:29,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:14:29,307 INFO L87 Difference]: Start difference. First operand 10756 states and 16060 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 02:14:32,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:47,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:49,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:55,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:00,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:02,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:06,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:09,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:10,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:15:10,012 INFO L93 Difference]: Finished difference Result 10770 states and 16076 transitions. [2022-11-22 02:15:10,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:15:10,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 40 [2022-11-22 02:15:10,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:15:10,133 INFO L225 Difference]: With dead ends: 10770 [2022-11-22 02:15:10,134 INFO L226 Difference]: Without dead ends: 10766 [2022-11-22 02:15:10,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:15:10,148 INFO L413 NwaCegarLoop]: 10814 mSDtfsCounter, 6288 mSDsluCounter, 30642 mSDsCounter, 0 mSdLazyCounter, 3078 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6289 SdHoareTripleChecker+Valid, 41456 SdHoareTripleChecker+Invalid, 3085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3078 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:15:10,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6289 Valid, 41456 Invalid, 3085 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3078 Invalid, 5 Unknown, 0 Unchecked, 39.9s Time] [2022-11-22 02:15:10,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2022-11-22 02:15:11,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 10758. [2022-11-22 02:15:11,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10758 states, 6832 states have (on average 1.327722482435597) internal successors, (9071), 6993 states have internal predecessors, (9071), 3498 states have call successors, (3498), 430 states have call predecessors, (3498), 427 states have return successors, (3492), 3477 states have call predecessors, (3492), 3492 states have call successors, (3492) [2022-11-22 02:15:11,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10758 states to 10758 states and 16061 transitions. [2022-11-22 02:15:11,246 INFO L78 Accepts]: Start accepts. Automaton has 10758 states and 16061 transitions. Word has length 40 [2022-11-22 02:15:11,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:15:11,247 INFO L495 AbstractCegarLoop]: Abstraction has 10758 states and 16061 transitions. [2022-11-22 02:15:11,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 02:15:11,247 INFO L276 IsEmpty]: Start isEmpty. Operand 10758 states and 16061 transitions. [2022-11-22 02:15:11,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-22 02:15:11,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:15:11,260 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-22 02:15:11,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:15:11,261 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:15:11,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:15:11,261 INFO L85 PathProgramCache]: Analyzing trace with hash 323075664, now seen corresponding path program 1 times [2022-11-22 02:15:11,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:15:11,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671455568] [2022-11-22 02:15:11,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:15:11,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:15:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:15:14,676 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-22 02:15:14,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:15:14,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671455568] [2022-11-22 02:15:14,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671455568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:15:14,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:15:14,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:15:14,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418263933] [2022-11-22 02:15:14,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:15:14,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:15:14,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:15:14,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:15:14,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:15:14,680 INFO L87 Difference]: Start difference. First operand 10758 states and 16061 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 02:15:17,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:28,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:31,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:34,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:46,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:48,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:50,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:51,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:15:51,696 INFO L93 Difference]: Finished difference Result 10766 states and 16072 transitions. [2022-11-22 02:15:51,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:15:51,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 51 [2022-11-22 02:15:51,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:15:51,771 INFO L225 Difference]: With dead ends: 10766 [2022-11-22 02:15:51,771 INFO L226 Difference]: Without dead ends: 10721 [2022-11-22 02:15:51,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:15:51,779 INFO L413 NwaCegarLoop]: 10814 mSDtfsCounter, 6280 mSDsluCounter, 30644 mSDsCounter, 0 mSdLazyCounter, 3075 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6280 SdHoareTripleChecker+Valid, 41458 SdHoareTripleChecker+Invalid, 3084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3075 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:15:51,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6280 Valid, 41458 Invalid, 3084 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3075 Invalid, 7 Unknown, 0 Unchecked, 36.4s Time] [2022-11-22 02:15:51,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10721 states. [2022-11-22 02:15:52,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10721 to 10715. [2022-11-22 02:15:52,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10715 states, 6809 states have (on average 1.3280951681597886) internal successors, (9043), 6968 states have internal predecessors, (9043), 3480 states have call successors, (3480), 426 states have call predecessors, (3480), 425 states have return successors, (3477), 3462 states have call predecessors, (3477), 3477 states have call successors, (3477) [2022-11-22 02:15:52,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10715 states to 10715 states and 16000 transitions. [2022-11-22 02:15:52,685 INFO L78 Accepts]: Start accepts. Automaton has 10715 states and 16000 transitions. Word has length 51 [2022-11-22 02:15:52,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:15:52,686 INFO L495 AbstractCegarLoop]: Abstraction has 10715 states and 16000 transitions. [2022-11-22 02:15:52,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 02:15:52,686 INFO L276 IsEmpty]: Start isEmpty. Operand 10715 states and 16000 transitions. [2022-11-22 02:15:52,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-11-22 02:15:52,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:15:52,712 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:15:52,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:15:52,714 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:15:52,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:15:52,716 INFO L85 PathProgramCache]: Analyzing trace with hash -657493113, now seen corresponding path program 1 times [2022-11-22 02:15:52,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:15:52,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617069918] [2022-11-22 02:15:52,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:15:52,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:15:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:15:58,952 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2022-11-22 02:15:58,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:15:58,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617069918] [2022-11-22 02:15:58,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617069918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:15:58,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:15:58,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:15:58,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333727982] [2022-11-22 02:15:58,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:15:58,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:15:58,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:15:58,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:15:58,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:15:58,956 INFO L87 Difference]: Start difference. First operand 10715 states and 16000 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-22 02:16:02,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:12,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:15,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:17,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:27,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:27,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:16:27,772 INFO L93 Difference]: Finished difference Result 21876 states and 32717 transitions. [2022-11-22 02:16:27,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:16:27,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 242 [2022-11-22 02:16:27,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:16:27,855 INFO L225 Difference]: With dead ends: 21876 [2022-11-22 02:16:27,855 INFO L226 Difference]: Without dead ends: 11175 [2022-11-22 02:16:27,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:16:27,944 INFO L413 NwaCegarLoop]: 9302 mSDtfsCounter, 290 mSDsluCounter, 18345 mSDsCounter, 0 mSdLazyCounter, 2285 mSolverCounterSat, 90 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 27647 SdHoareTripleChecker+Invalid, 2379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2285 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:16:27,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 27647 Invalid, 2379 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [90 Valid, 2285 Invalid, 4 Unknown, 0 Unchecked, 28.2s Time] [2022-11-22 02:16:27,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11175 states. [2022-11-22 02:16:28,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11175 to 10719. [2022-11-22 02:16:28,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10719 states, 6813 states have (on average 1.3279025392631734) internal successors, (9047), 6972 states have internal predecessors, (9047), 3480 states have call successors, (3480), 426 states have call predecessors, (3480), 425 states have return successors, (3477), 3462 states have call predecessors, (3477), 3477 states have call successors, (3477) [2022-11-22 02:16:28,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10719 states to 10719 states and 16004 transitions. [2022-11-22 02:16:28,936 INFO L78 Accepts]: Start accepts. Automaton has 10719 states and 16004 transitions. Word has length 242 [2022-11-22 02:16:28,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:16:28,939 INFO L495 AbstractCegarLoop]: Abstraction has 10719 states and 16004 transitions. [2022-11-22 02:16:28,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-22 02:16:28,939 INFO L276 IsEmpty]: Start isEmpty. Operand 10719 states and 16004 transitions. [2022-11-22 02:16:28,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-22 02:16:28,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:16:28,955 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:16:28,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:16:28,955 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:16:28,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:16:28,956 INFO L85 PathProgramCache]: Analyzing trace with hash 802263636, now seen corresponding path program 1 times [2022-11-22 02:16:28,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:16:28,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342098679] [2022-11-22 02:16:28,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:16:28,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:16:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:16:36,919 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked. [2022-11-22 02:16:36,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:16:36,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342098679] [2022-11-22 02:16:36,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342098679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:16:36,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:16:36,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:16:36,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432153889] [2022-11-22 02:16:36,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:16:36,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:16:36,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:16:36,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:16:36,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:16:36,926 INFO L87 Difference]: Start difference. First operand 10719 states and 16004 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-22 02:16:40,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:51,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:53,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:55,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:57,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:09,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:12,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:12,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:17:12,662 INFO L93 Difference]: Finished difference Result 17240 states and 25800 transitions. [2022-11-22 02:17:12,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:17:12,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) Word has length 259 [2022-11-22 02:17:12,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:17:12,738 INFO L225 Difference]: With dead ends: 17240 [2022-11-22 02:17:12,738 INFO L226 Difference]: Without dead ends: 10727 [2022-11-22 02:17:12,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:17:12,782 INFO L413 NwaCegarLoop]: 9043 mSDtfsCounter, 0 mSDsluCounter, 27115 mSDsCounter, 0 mSdLazyCounter, 2983 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36158 SdHoareTripleChecker+Invalid, 2988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2983 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:17:12,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36158 Invalid, 2988 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2983 Invalid, 5 Unknown, 0 Unchecked, 35.2s Time] [2022-11-22 02:17:12,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10727 states. [2022-11-22 02:17:13,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10727 to 10727. [2022-11-22 02:17:13,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10727 states, 6819 states have (on average 1.3276140196509751) internal successors, (9053), 6978 states have internal predecessors, (9053), 3480 states have call successors, (3480), 426 states have call predecessors, (3480), 427 states have return successors, (3495), 3464 states have call predecessors, (3495), 3477 states have call successors, (3495) [2022-11-22 02:17:13,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10727 states to 10727 states and 16028 transitions. [2022-11-22 02:17:13,815 INFO L78 Accepts]: Start accepts. Automaton has 10727 states and 16028 transitions. Word has length 259 [2022-11-22 02:17:13,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:17:13,816 INFO L495 AbstractCegarLoop]: Abstraction has 10727 states and 16028 transitions. [2022-11-22 02:17:13,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-22 02:17:13,817 INFO L276 IsEmpty]: Start isEmpty. Operand 10727 states and 16028 transitions. [2022-11-22 02:17:13,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-22 02:17:13,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:17:13,831 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:17:13,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:17:13,832 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:17:13,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:17:13,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1324810964, now seen corresponding path program 1 times [2022-11-22 02:17:13,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:17:13,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985114723] [2022-11-22 02:17:13,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:13,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:17:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:17,979 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2022-11-22 02:17:17,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:17:17,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985114723] [2022-11-22 02:17:17,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985114723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:17:17,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:17:17,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:17:17,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733433443] [2022-11-22 02:17:17,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:17:17,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:17:17,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:17:17,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:17:17,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:17:17,983 INFO L87 Difference]: Start difference. First operand 10727 states and 16028 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-22 02:17:21,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:31,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:34,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:40,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:46,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:52,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:55,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:00,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:02,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:04,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:07,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:08,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:18:08,220 INFO L93 Difference]: Finished difference Result 17190 states and 25723 transitions. [2022-11-22 02:18:08,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:18:08,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 272 [2022-11-22 02:18:08,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:18:08,345 INFO L225 Difference]: With dead ends: 17190 [2022-11-22 02:18:08,345 INFO L226 Difference]: Without dead ends: 17188 [2022-11-22 02:18:08,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:18:08,362 INFO L413 NwaCegarLoop]: 12850 mSDtfsCounter, 9609 mSDsluCounter, 34720 mSDsCounter, 0 mSdLazyCounter, 3800 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9612 SdHoareTripleChecker+Valid, 47570 SdHoareTripleChecker+Invalid, 3808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3800 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:18:08,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9612 Valid, 47570 Invalid, 3808 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3800 Invalid, 6 Unknown, 0 Unchecked, 49.4s Time] [2022-11-22 02:18:08,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17188 states. [2022-11-22 02:18:09,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17188 to 17183. [2022-11-22 02:18:09,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17183 states, 10933 states have (on average 1.3294612640629286) internal successors, (14535), 11195 states have internal predecessors, (14535), 5579 states have call successors, (5579), 669 states have call predecessors, (5579), 670 states have return successors, (5603), 5547 states have call predecessors, (5603), 5573 states have call successors, (5603) [2022-11-22 02:18:09,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17183 states to 17183 states and 25717 transitions. [2022-11-22 02:18:09,769 INFO L78 Accepts]: Start accepts. Automaton has 17183 states and 25717 transitions. Word has length 272 [2022-11-22 02:18:09,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:18:09,772 INFO L495 AbstractCegarLoop]: Abstraction has 17183 states and 25717 transitions. [2022-11-22 02:18:09,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-22 02:18:09,772 INFO L276 IsEmpty]: Start isEmpty. Operand 17183 states and 25717 transitions. [2022-11-22 02:18:09,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-11-22 02:18:09,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:18:09,785 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:18:09,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:18:09,786 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:18:09,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:18:09,786 INFO L85 PathProgramCache]: Analyzing trace with hash -15194433, now seen corresponding path program 1 times [2022-11-22 02:18:09,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:18:09,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793601337] [2022-11-22 02:18:09,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:18:09,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:18:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:18:13,298 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2022-11-22 02:18:13,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:18:13,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793601337] [2022-11-22 02:18:13,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793601337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:18:13,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:18:13,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:18:13,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730811670] [2022-11-22 02:18:13,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:18:13,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:18:13,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:18:13,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:18:13,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:18:13,302 INFO L87 Difference]: Start difference. First operand 17183 states and 25717 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-22 02:18:16,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:25,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:27,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:28,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:30,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:32,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:43,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:45,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:47,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:18:47,479 INFO L93 Difference]: Finished difference Result 21863 states and 32673 transitions. [2022-11-22 02:18:47,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:18:47,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 277 [2022-11-22 02:18:47,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:18:47,645 INFO L225 Difference]: With dead ends: 21863 [2022-11-22 02:18:47,645 INFO L226 Difference]: Without dead ends: 21859 [2022-11-22 02:18:47,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:18:47,671 INFO L413 NwaCegarLoop]: 10560 mSDtfsCounter, 6867 mSDsluCounter, 30134 mSDsCounter, 0 mSdLazyCounter, 2972 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6868 SdHoareTripleChecker+Valid, 40694 SdHoareTripleChecker+Invalid, 2980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2972 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:18:47,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6868 Valid, 40694 Invalid, 2980 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2972 Invalid, 6 Unknown, 0 Unchecked, 33.3s Time] [2022-11-22 02:18:47,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21859 states. [2022-11-22 02:18:49,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21859 to 21822. [2022-11-22 02:18:49,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21822 states, 13895 states have (on average 1.3293270960777257) internal successors, (18471), 14219 states have internal predecessors, (18471), 7061 states have call successors, (7061), 865 states have call predecessors, (7061), 865 states have return successors, (7090), 7024 states have call predecessors, (7090), 7052 states have call successors, (7090) [2022-11-22 02:18:49,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21822 states to 21822 states and 32622 transitions. [2022-11-22 02:18:49,274 INFO L78 Accepts]: Start accepts. Automaton has 21822 states and 32622 transitions. Word has length 277 [2022-11-22 02:18:49,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:18:49,275 INFO L495 AbstractCegarLoop]: Abstraction has 21822 states and 32622 transitions. [2022-11-22 02:18:49,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-22 02:18:49,275 INFO L276 IsEmpty]: Start isEmpty. Operand 21822 states and 32622 transitions. [2022-11-22 02:18:49,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-11-22 02:18:49,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:18:49,304 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 9, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:18:49,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:18:49,304 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:18:49,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:18:49,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1552021035, now seen corresponding path program 1 times [2022-11-22 02:18:49,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:18:49,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432357698] [2022-11-22 02:18:49,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:18:49,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:18:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:18:52,312 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2022-11-22 02:18:52,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:18:52,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432357698] [2022-11-22 02:18:52,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432357698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:18:52,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:18:52,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:18:52,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776498591] [2022-11-22 02:18:52,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:18:52,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:18:52,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:18:52,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:18:52,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:18:52,315 INFO L87 Difference]: Start difference. First operand 21822 states and 32622 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-22 02:18:55,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:59,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:02,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:04,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:07,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:21,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:23,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:26,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:27,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:19:27,381 INFO L93 Difference]: Finished difference Result 28289 states and 42320 transitions. [2022-11-22 02:19:27,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:19:27,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 288 [2022-11-22 02:19:27,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:19:27,714 INFO L225 Difference]: With dead ends: 28289 [2022-11-22 02:19:27,714 INFO L226 Difference]: Without dead ends: 28239 [2022-11-22 02:19:27,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:19:27,735 INFO L413 NwaCegarLoop]: 11144 mSDtfsCounter, 9599 mSDsluCounter, 31302 mSDsCounter, 0 mSdLazyCounter, 2979 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9600 SdHoareTripleChecker+Valid, 42446 SdHoareTripleChecker+Invalid, 2986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2979 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:19:27,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9600 Valid, 42446 Invalid, 2986 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2979 Invalid, 5 Unknown, 0 Unchecked, 33.9s Time] [2022-11-22 02:19:27,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28239 states. [2022-11-22 02:19:29,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28239 to 28233. [2022-11-22 02:19:29,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28233 states, 17985 states have (on average 1.330219627467334) internal successors, (23924), 18410 states have internal predecessors, (23924), 9142 states have call successors, (9142), 1104 states have call predecessors, (9142), 1105 states have return successors, (9183), 9091 states have call predecessors, (9183), 9133 states have call successors, (9183) [2022-11-22 02:19:29,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28233 states to 28233 states and 42249 transitions. [2022-11-22 02:19:29,989 INFO L78 Accepts]: Start accepts. Automaton has 28233 states and 42249 transitions. Word has length 288 [2022-11-22 02:19:29,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:19:29,990 INFO L495 AbstractCegarLoop]: Abstraction has 28233 states and 42249 transitions. [2022-11-22 02:19:29,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-22 02:19:29,991 INFO L276 IsEmpty]: Start isEmpty. Operand 28233 states and 42249 transitions. [2022-11-22 02:19:30,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2022-11-22 02:19:30,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:19:30,144 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 14, 8, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:19:30,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:19:30,144 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:19:30,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:19:30,145 INFO L85 PathProgramCache]: Analyzing trace with hash 328283704, now seen corresponding path program 1 times [2022-11-22 02:19:30,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:19:30,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152745882] [2022-11-22 02:19:30,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:19:30,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:19:31,259 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:19:31,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1397082141] [2022-11-22 02:19:31,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:19:31,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:19:31,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:19:31,267 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:19:31,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:19:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:19:39,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 22003 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 02:19:39,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:19:39,220 INFO L134 CoverageAnalysis]: Checked inductivity of 849 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2022-11-22 02:19:39,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:19:39,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:19:39,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152745882] [2022-11-22 02:19:39,221 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:19:39,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397082141] [2022-11-22 02:19:39,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397082141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:19:39,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:19:39,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:19:39,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945369027] [2022-11-22 02:19:39,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:19:39,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:19:39,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:19:39,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:19:39,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:19:39,226 INFO L87 Difference]: Start difference. First operand 28233 states and 42249 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 3 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2022-11-22 02:19:42,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:49,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:51,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:54,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:57,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:01,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:03,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:05,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:07,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:08,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:20:08,726 INFO L93 Difference]: Finished difference Result 51647 states and 77761 transitions. [2022-11-22 02:20:08,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:20:08,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 3 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 635 [2022-11-22 02:20:08,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:20:08,940 INFO L225 Difference]: With dead ends: 51647 [2022-11-22 02:20:08,940 INFO L226 Difference]: Without dead ends: 32222 [2022-11-22 02:20:09,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 634 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:20:09,073 INFO L413 NwaCegarLoop]: 10292 mSDtfsCounter, 1135 mSDsluCounter, 9302 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1621 SdHoareTripleChecker+Valid, 19594 SdHoareTripleChecker+Invalid, 1600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:20:09,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1621 Valid, 19594 Invalid, 1600 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1593 Invalid, 6 Unknown, 0 Unchecked, 27.9s Time] [2022-11-22 02:20:09,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32222 states. [2022-11-22 02:20:11,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32222 to 28248. [2022-11-22 02:20:11,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 17997 states have (on average 1.3301661388009112) internal successors, (23939), 18422 states have internal predecessors, (23939), 9145 states have call successors, (9145), 1104 states have call predecessors, (9145), 1105 states have return successors, (9186), 9094 states have call predecessors, (9186), 9136 states have call successors, (9186) [2022-11-22 02:20:11,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 42270 transitions. [2022-11-22 02:20:11,419 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 42270 transitions. Word has length 635 [2022-11-22 02:20:11,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:20:11,421 INFO L495 AbstractCegarLoop]: Abstraction has 28248 states and 42270 transitions. [2022-11-22 02:20:11,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 3 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2022-11-22 02:20:11,421 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 42270 transitions. [2022-11-22 02:20:11,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2022-11-22 02:20:11,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:20:11,508 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 8, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:20:11,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:20:11,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:20:11,735 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:20:11,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:20:11,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1815482837, now seen corresponding path program 1 times [2022-11-22 02:20:11,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:20:11,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052111466] [2022-11-22 02:20:11,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:11,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:20:12,958 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:20:12,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [489072855] [2022-11-22 02:20:12,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:12,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:20:12,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:20:12,960 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:20:12,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:20:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:20:20,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 22479 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:20:20,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:20:20,980 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 740 trivial. 0 not checked. [2022-11-22 02:20:20,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:20:20,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:20:20,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052111466] [2022-11-22 02:20:20,982 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:20:20,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489072855] [2022-11-22 02:20:20,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489072855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:20:20,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:20:20,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:20:20,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441244653] [2022-11-22 02:20:20,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:20:20,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:20:20,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:20:20,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:20:20,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:20:20,986 INFO L87 Difference]: Start difference. First operand 28248 states and 42270 transitions. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (111), 2 states have call predecessors, (111), 2 states have call successors, (111) [2022-11-22 02:20:24,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:34,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:36,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:46,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:49,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:50,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:20:50,198 INFO L93 Difference]: Finished difference Result 53944 states and 80918 transitions. [2022-11-22 02:20:50,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:20:50,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (111), 2 states have call predecessors, (111), 2 states have call successors, (111) Word has length 679 [2022-11-22 02:20:50,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:20:50,359 INFO L225 Difference]: With dead ends: 53944 [2022-11-22 02:20:50,359 INFO L226 Difference]: Without dead ends: 29906 [2022-11-22 02:20:50,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 677 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:20:50,485 INFO L413 NwaCegarLoop]: 9490 mSDtfsCounter, 448 mSDsluCounter, 18398 mSDsCounter, 0 mSdLazyCounter, 2329 mSolverCounterSat, 113 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 27888 SdHoareTripleChecker+Invalid, 2447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 2329 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:20:50,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 27888 Invalid, 2447 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [113 Valid, 2329 Invalid, 5 Unknown, 0 Unchecked, 27.8s Time] [2022-11-22 02:20:50,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29906 states. [2022-11-22 02:20:52,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29906 to 28256. [2022-11-22 02:20:52,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28256 states, 18005 states have (on average 1.3300194390447098) internal successors, (23947), 18430 states have internal predecessors, (23947), 9145 states have call successors, (9145), 1104 states have call predecessors, (9145), 1105 states have return successors, (9186), 9094 states have call predecessors, (9186), 9136 states have call successors, (9186) [2022-11-22 02:20:52,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28256 states to 28256 states and 42278 transitions. [2022-11-22 02:20:52,833 INFO L78 Accepts]: Start accepts. Automaton has 28256 states and 42278 transitions. Word has length 679 [2022-11-22 02:20:52,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:20:52,834 INFO L495 AbstractCegarLoop]: Abstraction has 28256 states and 42278 transitions. [2022-11-22 02:20:52,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (111), 2 states have call predecessors, (111), 2 states have call successors, (111) [2022-11-22 02:20:52,835 INFO L276 IsEmpty]: Start isEmpty. Operand 28256 states and 42278 transitions. [2022-11-22 02:20:53,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2022-11-22 02:20:53,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:20:53,113 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 8, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:20:53,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:20:53,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:20:53,320 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:20:53,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:20:53,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1942503031, now seen corresponding path program 1 times [2022-11-22 02:20:53,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:20:53,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414200325] [2022-11-22 02:20:53,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:53,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:20:54,358 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:20:54,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1529630448] [2022-11-22 02:20:54,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:54,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:20:54,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:20:54,360 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:20:54,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:21:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:02,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 22738 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:21:02,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:21:02,600 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 772 trivial. 0 not checked. [2022-11-22 02:21:02,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:21:02,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:02,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414200325] [2022-11-22 02:21:02,601 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:21:02,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529630448] [2022-11-22 02:21:02,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529630448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:02,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:21:02,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:21:02,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429746468] [2022-11-22 02:21:02,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:02,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:21:02,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:02,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:21:02,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:21:02,605 INFO L87 Difference]: Start difference. First operand 28256 states and 42278 transitions. Second operand has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2022-11-22 02:21:06,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:09,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:15,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:17,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:20,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:28,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:30,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:31,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:31,414 INFO L93 Difference]: Finished difference Result 53014 states and 79456 transitions. [2022-11-22 02:21:31,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:21:31,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) Word has length 697 [2022-11-22 02:21:31,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:31,567 INFO L225 Difference]: With dead ends: 53014 [2022-11-22 02:21:31,567 INFO L226 Difference]: Without dead ends: 28968 [2022-11-22 02:21:31,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 695 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:21:31,710 INFO L413 NwaCegarLoop]: 9294 mSDtfsCounter, 329 mSDsluCounter, 18207 mSDsCounter, 0 mSdLazyCounter, 2253 mSolverCounterSat, 123 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 27501 SdHoareTripleChecker+Invalid, 2381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2253 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:31,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 27501 Invalid, 2381 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [123 Valid, 2253 Invalid, 5 Unknown, 0 Unchecked, 27.4s Time] [2022-11-22 02:21:31,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28968 states. [2022-11-22 02:21:33,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28968 to 28264. [2022-11-22 02:21:33,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28264 states, 18013 states have (on average 1.329872869594182) internal successors, (23955), 18438 states have internal predecessors, (23955), 9145 states have call successors, (9145), 1104 states have call predecessors, (9145), 1105 states have return successors, (9186), 9094 states have call predecessors, (9186), 9136 states have call successors, (9186) [2022-11-22 02:21:33,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28264 states to 28264 states and 42286 transitions. [2022-11-22 02:21:33,825 INFO L78 Accepts]: Start accepts. Automaton has 28264 states and 42286 transitions. Word has length 697 [2022-11-22 02:21:33,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:21:33,826 INFO L495 AbstractCegarLoop]: Abstraction has 28264 states and 42286 transitions. [2022-11-22 02:21:33,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2022-11-22 02:21:33,827 INFO L276 IsEmpty]: Start isEmpty. Operand 28264 states and 42286 transitions. [2022-11-22 02:21:34,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2022-11-22 02:21:34,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:34,071 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 8, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:21:34,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:21:34,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-22 02:21:34,300 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:21:34,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:34,301 INFO L85 PathProgramCache]: Analyzing trace with hash 285294440, now seen corresponding path program 1 times [2022-11-22 02:21:34,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:34,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822797512] [2022-11-22 02:21:34,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:34,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:35,199 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:21:35,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1426582582] [2022-11-22 02:21:35,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:35,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:21:35,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:21:35,201 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:21:35,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:21:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:43,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 22784 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:21:43,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:21:43,155 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 253 proven. 0 refuted. 0 times theorem prover too weak. 742 trivial. 0 not checked. [2022-11-22 02:21:43,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:21:43,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:43,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822797512] [2022-11-22 02:21:43,156 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:21:43,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426582582] [2022-11-22 02:21:43,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426582582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:43,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:21:43,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:21:43,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144517848] [2022-11-22 02:21:43,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:43,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:21:43,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:43,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:21:43,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:21:43,160 INFO L87 Difference]: Start difference. First operand 28264 states and 42286 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2022-11-22 02:21:46,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:55,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:57,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:59,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:00,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:02,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:04,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:11,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:12,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:14,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:17,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:18,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:22:18,194 INFO L93 Difference]: Finished difference Result 53926 states and 80877 transitions. [2022-11-22 02:22:18,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:22:18,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) Word has length 700 [2022-11-22 02:22:18,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:22:18,335 INFO L225 Difference]: With dead ends: 53926 [2022-11-22 02:22:18,336 INFO L226 Difference]: Without dead ends: 29872 [2022-11-22 02:22:18,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 701 GetRequests, 698 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:22:18,436 INFO L413 NwaCegarLoop]: 9490 mSDtfsCounter, 332 mSDsluCounter, 18540 mSDsCounter, 0 mSdLazyCounter, 2355 mSolverCounterSat, 109 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 28030 SdHoareTripleChecker+Invalid, 2469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2355 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:22:18,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 28030 Invalid, 2469 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [109 Valid, 2355 Invalid, 5 Unknown, 0 Unchecked, 33.6s Time] [2022-11-22 02:22:18,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29872 states. [2022-11-22 02:22:20,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29872 to 28272. [2022-11-22 02:22:20,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28272 states, 18021 states have (on average 1.3297264302757894) internal successors, (23963), 18446 states have internal predecessors, (23963), 9145 states have call successors, (9145), 1104 states have call predecessors, (9145), 1105 states have return successors, (9186), 9094 states have call predecessors, (9186), 9136 states have call successors, (9186) [2022-11-22 02:22:20,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28272 states to 28272 states and 42294 transitions. [2022-11-22 02:22:20,540 INFO L78 Accepts]: Start accepts. Automaton has 28272 states and 42294 transitions. Word has length 700 [2022-11-22 02:22:20,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:22:20,540 INFO L495 AbstractCegarLoop]: Abstraction has 28272 states and 42294 transitions. [2022-11-22 02:22:20,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2022-11-22 02:22:20,540 INFO L276 IsEmpty]: Start isEmpty. Operand 28272 states and 42294 transitions. [2022-11-22 02:22:20,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 720 [2022-11-22 02:22:20,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:22:20,594 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 8, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:22:20,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 02:22:20,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-22 02:22:20,795 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:22:20,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:22:20,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1653180541, now seen corresponding path program 1 times [2022-11-22 02:22:20,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:22:20,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798719848] [2022-11-22 02:22:20,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:22:20,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:22:21,825 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:22:21,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [168994867] [2022-11-22 02:22:21,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:22:21,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:22:21,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:22:21,827 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:22:21,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 02:22:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:22:29,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 22897 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:22:29,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:22:29,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1021 backedges. 253 proven. 0 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2022-11-22 02:22:29,739 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:22:29,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:22:29,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798719848] [2022-11-22 02:22:29,740 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:22:29,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168994867] [2022-11-22 02:22:29,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168994867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:22:29,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:22:29,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:22:29,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499424394] [2022-11-22 02:22:29,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:22:29,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:22:29,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:22:29,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:22:29,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:22:29,744 INFO L87 Difference]: Start difference. First operand 28272 states and 42294 transitions. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 2 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (118), 2 states have call predecessors, (118), 2 states have call successors, (118) [2022-11-22 02:22:33,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:41,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:44,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:52,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:54,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:55,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:22:55,447 INFO L93 Difference]: Finished difference Result 53046 states and 79488 transitions. [2022-11-22 02:22:55,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:22:55,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 2 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (118), 2 states have call predecessors, (118), 2 states have call successors, (118) Word has length 719 [2022-11-22 02:22:55,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:22:55,675 INFO L225 Difference]: With dead ends: 53046 [2022-11-22 02:22:55,675 INFO L226 Difference]: Without dead ends: 28984 [2022-11-22 02:22:55,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 717 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:22:55,750 INFO L413 NwaCegarLoop]: 9299 mSDtfsCounter, 329 mSDsluCounter, 18206 mSDsCounter, 0 mSdLazyCounter, 2256 mSolverCounterSat, 123 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 27505 SdHoareTripleChecker+Invalid, 2384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2256 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:22:55,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 27505 Invalid, 2384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [123 Valid, 2256 Invalid, 5 Unknown, 0 Unchecked, 24.4s Time] [2022-11-22 02:22:55,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28984 states. [2022-11-22 02:22:57,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28984 to 28280. [2022-11-22 02:22:57,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28280 states, 18029 states have (on average 1.3295801209163016) internal successors, (23971), 18454 states have internal predecessors, (23971), 9145 states have call successors, (9145), 1104 states have call predecessors, (9145), 1105 states have return successors, (9186), 9094 states have call predecessors, (9186), 9136 states have call successors, (9186) [2022-11-22 02:22:57,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28280 states to 28280 states and 42302 transitions. [2022-11-22 02:22:57,531 INFO L78 Accepts]: Start accepts. Automaton has 28280 states and 42302 transitions. Word has length 719 [2022-11-22 02:22:57,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:22:57,532 INFO L495 AbstractCegarLoop]: Abstraction has 28280 states and 42302 transitions. [2022-11-22 02:22:57,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 2 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (118), 2 states have call predecessors, (118), 2 states have call successors, (118) [2022-11-22 02:22:57,532 INFO L276 IsEmpty]: Start isEmpty. Operand 28280 states and 42302 transitions. [2022-11-22 02:22:57,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2022-11-22 02:22:57,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:22:57,580 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 8, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:22:57,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 02:22:57,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:22:57,780 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:22:57,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:22:57,781 INFO L85 PathProgramCache]: Analyzing trace with hash -786626360, now seen corresponding path program 1 times [2022-11-22 02:22:57,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:22:57,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824379316] [2022-11-22 02:22:57,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:22:57,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:22:58,601 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:22:58,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1856870603] [2022-11-22 02:22:58,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:22:58,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:22:58,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:22:58,603 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:22:58,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36781f1a-0f25-40ad-aba0-9d61dc1136d3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 02:23:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:06,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 22965 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:23:06,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:23:06,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1025 backedges. 327 proven. 5 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-11-22 02:23:06,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:23:07,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1025 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1015 trivial. 0 not checked. [2022-11-22 02:23:07,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:07,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824379316] [2022-11-22 02:23:07,573 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:23:07,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856870603] [2022-11-22 02:23:07,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856870603] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:23:07,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1950327783] [2022-11-22 02:23:07,611 INFO L159 IcfgInterpreter]: Started Sifa with 497 locations of interest [2022-11-22 02:23:07,612 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:23:07,616 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:23:07,622 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:23:07,622 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs