./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 463dbca1530ea0e57c159e9405d50f794488f63283b3e27908f44b92b1921358 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:51:05,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:51:05,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:51:05,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:51:05,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:51:05,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:51:05,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:51:05,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:51:05,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:51:05,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:51:05,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:51:05,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:51:05,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:51:05,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:51:05,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:51:05,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:51:05,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:51:05,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:51:05,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:51:05,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:51:05,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:51:05,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:51:05,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:51:05,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:51:05,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:51:05,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:51:05,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:51:05,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:51:05,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:51:05,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:51:05,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:51:05,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:51:05,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:51:05,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:51:05,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:51:05,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:51:05,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:51:05,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:51:05,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:51:05,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:51:05,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:51:05,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 18:51:05,765 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:51:05,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:51:05,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:51:05,768 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:51:05,769 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:51:05,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:51:05,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:51:05,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:51:05,771 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:51:05,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:51:05,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:51:05,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:51:05,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:51:05,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:51:05,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:51:05,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:51:05,773 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:51:05,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:51:05,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:51:05,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:51:05,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:51:05,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:51:05,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:51:05,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:51:05,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:51:05,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:51:05,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:51:05,777 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:51:05,777 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:51:05,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:51:05,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:51:05,778 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_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 463dbca1530ea0e57c159e9405d50f794488f63283b3e27908f44b92b1921358 [2021-11-13 18:51:06,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:51:06,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:51:06,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:51:06,190 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:51:06,191 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:51:06,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-13 18:51:06,311 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/data/06e17db24/f06ae79bb53045918b51a59db4b0da4e/FLAG67692177d [2021-11-13 18:51:07,633 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:51:07,634 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-13 18:51:07,718 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/data/06e17db24/f06ae79bb53045918b51a59db4b0da4e/FLAG67692177d [2021-11-13 18:51:08,234 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/data/06e17db24/f06ae79bb53045918b51a59db4b0da4e [2021-11-13 18:51:08,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:51:08,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:51:08,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:51:08,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:51:08,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:51:08,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:51:08" (1/1) ... [2021-11-13 18:51:08,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62b5e498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:51:08, skipping insertion in model container [2021-11-13 18:51:08,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:51:08" (1/1) ... [2021-11-13 18:51:08,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:51:08,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:51:15,826 WARN L228 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_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487146,487159] [2021-11-13 18:51:15,839 WARN L228 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_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487315,487328] [2021-11-13 18:51:15,841 WARN L228 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_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487482,487495] [2021-11-13 18:51:15,842 WARN L228 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_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487650,487663] [2021-11-13 18:51:15,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:51:15,987 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:51:16,745 WARN L228 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_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487146,487159] [2021-11-13 18:51:16,746 WARN L228 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_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487315,487328] [2021-11-13 18:51:16,746 WARN L228 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_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487482,487495] [2021-11-13 18:51:16,747 WARN L228 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_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487650,487663] [2021-11-13 18:51:16,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:51:17,098 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:51:17,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:51:17 WrapperNode [2021-11-13 18:51:17,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:51:17,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:51:17,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:51:17,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:51:17,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:51:17" (1/1) ... [2021-11-13 18:51:17,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:51:17" (1/1) ... [2021-11-13 18:51:17,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:51:17,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:51:17,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:51:17,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:51:17,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:51:17" (1/1) ... [2021-11-13 18:51:17,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:51:17" (1/1) ... [2021-11-13 18:51:18,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:51:17" (1/1) ... [2021-11-13 18:51:18,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:51:17" (1/1) ... [2021-11-13 18:51:18,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:51:17" (1/1) ... [2021-11-13 18:51:18,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:51:17" (1/1) ... [2021-11-13 18:51:18,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:51:17" (1/1) ... [2021-11-13 18:51:18,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:51:18,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:51:18,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:51:18,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:51:18,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:51:17" (1/1) ... [2021-11-13 18:51:18,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:51:18,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:51:18,728 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:51:18,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:51:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-13 18:51:18,788 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-13 18:51:18,788 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_read [2021-11-13 18:51:18,788 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_read [2021-11-13 18:51:18,788 INFO L130 BoogieDeclarations]: Found specification of procedure cas_pcs_link_check [2021-11-13 18:51:18,789 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_pcs_link_check [2021-11-13 18:51:18,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_121 [2021-11-13 18:51:18,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_121 [2021-11-13 18:51:18,789 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 18:51:18,789 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 18:51:18,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 18:51:18,790 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 18:51:18,790 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-13 18:51:18,790 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-13 18:51:18,791 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-13 18:51:18,791 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-13 18:51:18,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 18:51:18,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 18:51:18,791 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mii_link_check [2021-11-13 18:51:18,792 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mii_link_check [2021-11-13 18:51:18,792 INFO L130 BoogieDeclarations]: Found specification of procedure cas_calc_tabort [2021-11-13 18:51:18,792 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_calc_tabort [2021-11-13 18:51:18,792 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-13 18:51:18,792 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-13 18:51:18,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2021-11-13 18:51:18,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2021-11-13 18:51:18,793 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-13 18:51:18,793 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-13 18:51:18,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 18:51:18,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 18:51:18,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_147 [2021-11-13 18:51:18,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_147 [2021-11-13 18:51:18,795 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-13 18:51:18,795 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-13 18:51:18,795 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 18:51:18,796 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 18:51:18,796 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-13 18:51:18,796 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-13 18:51:18,796 INFO L130 BoogieDeclarations]: Found specification of procedure cas_lock_tx [2021-11-13 18:51:18,797 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_lock_tx [2021-11-13 18:51:18,797 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-13 18:51:18,797 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-13 18:51:18,797 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 18:51:18,797 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 18:51:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure cas_disable_irq [2021-11-13 18:51:18,798 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_disable_irq [2021-11-13 18:51:18,799 INFO L130 BoogieDeclarations]: Found specification of procedure cas_free_rxds [2021-11-13 18:51:18,799 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_free_rxds [2021-11-13 18:51:18,799 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2021-11-13 18:51:18,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2021-11-13 18:51:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure cas_open [2021-11-13 18:51:18,800 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_open [2021-11-13 18:51:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure cas_interrupt [2021-11-13 18:51:18,803 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_interrupt [2021-11-13 18:51:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_tiny_free [2021-11-13 18:51:18,803 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_tiny_free [2021-11-13 18:51:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-13 18:51:18,803 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-13 18:51:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_map [2021-11-13 18:51:18,804 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_map [2021-11-13 18:51:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_init [2021-11-13 18:51:18,804 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_init [2021-11-13 18:51:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-13 18:51:18,805 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-13 18:51:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2021-11-13 18:51:18,806 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2021-11-13 18:51:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 18:51:18,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 18:51:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 18:51:18,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 18:51:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure cas_enable_irq [2021-11-13 18:51:18,808 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_enable_irq [2021-11-13 18:51:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 18:51:18,809 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 18:51:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-13 18:51:18,809 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-13 18:51:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_dequeue [2021-11-13 18:51:18,809 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_dequeue [2021-11-13 18:51:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-13 18:51:18,810 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-13 18:51:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 18:51:18,810 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 18:51:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 18:51:18,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 18:51:18,811 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 18:51:18,812 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 18:51:18,812 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-13 18:51:18,812 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-13 18:51:18,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:51:18,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_108 [2021-11-13 18:51:18,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_108 [2021-11-13 18:51:18,814 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-13 18:51:18,814 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-13 18:51:18,815 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_multicast [2021-11-13 18:51:18,815 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_multicast [2021-11-13 18:51:18,815 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-13 18:51:18,815 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-13 18:51:18,815 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-13 18:51:18,816 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-13 18:51:18,816 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_free [2021-11-13 18:51:18,816 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_free [2021-11-13 18:51:18,816 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_timeout [2021-11-13 18:51:18,817 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_timeout [2021-11-13 18:51:18,817 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 18:51:18,817 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 18:51:18,817 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_pcs_link_mode [2021-11-13 18:51:18,817 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_pcs_link_mode [2021-11-13 18:51:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-13 18:51:18,818 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-13 18:51:18,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 18:51:18,819 INFO L130 BoogieDeclarations]: Found specification of procedure cas_close [2021-11-13 18:51:18,819 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_close [2021-11-13 18:51:18,820 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_swap [2021-11-13 18:51:18,821 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_swap [2021-11-13 18:51:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 18:51:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 18:51:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure cas_netpoll [2021-11-13 18:51:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_netpoll [2021-11-13 18:51:18,828 INFO L130 BoogieDeclarations]: Found specification of procedure cas_hard_reset [2021-11-13 18:51:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_hard_reset [2021-11-13 18:51:18,829 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-13 18:51:18,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-13 18:51:18,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 18:51:18,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 18:51:18,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 18:51:18,836 INFO L130 BoogieDeclarations]: Found specification of procedure cas_rxc_init [2021-11-13 18:51:18,836 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_rxc_init [2021-11-13 18:51:18,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:51:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 18:51:18,837 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 18:51:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clear_mac_err [2021-11-13 18:51:18,837 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clear_mac_err [2021-11-13 18:51:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-13 18:51:18,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-13 18:51:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 18:51:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 18:51:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-13 18:51:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-13 18:51:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-13 18:51:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-13 18:51:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2021-11-13 18:51:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2021-11-13 18:51:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure cas_remove_one [2021-11-13 18:51:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_remove_one [2021-11-13 18:51:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_NOT_ARG_SIGN [2021-11-13 18:51:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_NOT_ARG_SIGN [2021-11-13 18:51:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-13 18:51:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-13 18:51:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-13 18:51:18,841 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-13 18:51:18,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 18:51:18,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 18:51:18,841 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-13 18:51:18,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-13 18:51:18,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:51:18,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-13 18:51:18,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-13 18:51:18,842 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-11-13 18:51:18,842 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-11-13 18:51:18,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 18:51:18,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 18:51:18,843 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 18:51:18,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 18:51:18,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:51:18,844 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 18:51:18,844 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:51:18,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:51:18,844 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_link_modes [2021-11-13 18:51:18,844 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_link_modes [2021-11-13 18:51:18,845 INFO L130 BoogieDeclarations]: Found specification of procedure cas_link_timer [2021-11-13 18:51:18,845 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_link_timer [2021-11-13 18:51:18,845 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_mii_link_mode [2021-11-13 18:51:18,845 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_mii_link_mode [2021-11-13 18:51:18,845 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2021-11-13 18:51:18,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2021-11-13 18:51:18,846 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-13 18:51:18,846 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-13 18:51:18,846 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-13 18:51:18,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-13 18:51:18,847 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-13 18:51:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-13 18:51:18,847 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2021-11-13 18:51:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2021-11-13 18:51:18,847 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-13 18:51:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-13 18:51:18,848 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 18:51:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 18:51:18,848 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-13 18:51:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-13 18:51:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 18:51:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 18:51:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure csum_unfold [2021-11-13 18:51:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_unfold [2021-11-13 18:51:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-13 18:51:18,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-13 18:51:18,850 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-13 18:51:18,850 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-13 18:51:18,850 INFO L130 BoogieDeclarations]: Found specification of procedure cas_entropy_gather [2021-11-13 18:51:18,850 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_entropy_gather [2021-11-13 18:51:18,851 INFO L130 BoogieDeclarations]: Found specification of procedure cas_resume [2021-11-13 18:51:18,851 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_resume [2021-11-13 18:51:18,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:51:18,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:51:18,851 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_alloc [2021-11-13 18:51:18,852 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_alloc [2021-11-13 18:51:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 18:51:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 18:51:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 18:51:18,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 18:51:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 18:51:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 18:51:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-13 18:51:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-13 18:51:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mif_poll [2021-11-13 18:51:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mif_poll [2021-11-13 18:51:18,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-13 18:51:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-13 18:51:18,854 INFO L130 BoogieDeclarations]: Found specification of procedure cas_unlock_tx [2021-11-13 18:51:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_unlock_tx [2021-11-13 18:51:18,855 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-13 18:51:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-13 18:51:18,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_133 [2021-11-13 18:51:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_133 [2021-11-13 18:51:18,855 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice [2021-11-13 18:51:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice [2021-11-13 18:51:18,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_135 [2021-11-13 18:51:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_135 [2021-11-13 18:51:18,856 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-13 18:51:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-13 18:51:18,857 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2021-11-13 18:51:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2021-11-13 18:51:18,857 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-13 18:51:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-13 18:51:18,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 18:51:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 18:51:18,858 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 18:51:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 18:51:18,858 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-13 18:51:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-13 18:51:18,859 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_buf [2021-11-13 18:51:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_buf [2021-11-13 18:51:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mac_reset [2021-11-13 18:51:18,865 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mac_reset [2021-11-13 18:51:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_cas [2021-11-13 18:51:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_cas [2021-11-13 18:51:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:51:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-13 18:51:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-13 18:51:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_set_page [2021-11-13 18:51:18,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_set_page [2021-11-13 18:51:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:51:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_regs_len [2021-11-13 18:51:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_regs_len [2021-11-13 18:51:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure cas_reset [2021-11-13 18:51:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_reset [2021-11-13 18:51:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2021-11-13 18:51:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2021-11-13 18:51:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_NOT_ARG_SIGN [2021-11-13 18:51:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_NOT_ARG_SIGN [2021-11-13 18:51:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-13 18:51:18,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-13 18:51:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_page [2021-11-13 18:51:18,874 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_page [2021-11-13 18:51:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:51:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-13 18:51:18,875 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-13 18:51:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure cas_nway_reset [2021-11-13 18:51:18,875 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_nway_reset [2021-11-13 18:51:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-13 18:51:18,875 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-13 18:51:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 18:51:18,876 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 18:51:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 18:51:18,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 18:51:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure cas_setup_multicast [2021-11-13 18:51:18,876 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_setup_multicast [2021-11-13 18:51:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_powerdown [2021-11-13 18:51:18,877 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_powerdown [2021-11-13 18:51:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2021-11-13 18:51:18,877 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2021-11-13 18:51:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-13 18:51:18,877 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-13 18:51:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure cas_vpd_match [2021-11-13 18:51:18,878 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_vpd_match [2021-11-13 18:51:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_83 [2021-11-13 18:51:18,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_83 [2021-11-13 18:51:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2021-11-13 18:51:18,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2021-11-13 18:51:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-13 18:51:18,879 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-13 18:51:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-11-13 18:51:18,879 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-11-13 18:51:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-13 18:51:18,880 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-13 18:51:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure page_count [2021-11-13 18:51:18,880 INFO L138 BoogieDeclarations]: Found implementation of procedure page_count [2021-11-13 18:51:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 18:51:18,880 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 18:51:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2021-11-13 18:51:18,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2021-11-13 18:51:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure cas_shutdown [2021-11-13 18:51:18,881 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_shutdown [2021-11-13 18:51:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure cas_begin_auto_negotiation [2021-11-13 18:51:18,881 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_begin_auto_negotiation [2021-11-13 18:51:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-13 18:51:18,882 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-13 18:51:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 18:51:18,882 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 18:51:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure cas_write_txd [2021-11-13 18:51:18,883 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_write_txd [2021-11-13 18:51:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 18:51:18,883 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 18:51:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_ref [2021-11-13 18:51:18,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_ref [2021-11-13 18:51:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:51:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 18:51:18,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 18:51:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2021-11-13 18:51:18,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2021-11-13 18:51:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_84 [2021-11-13 18:51:18,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_84 [2021-11-13 18:51:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_79 [2021-11-13 18:51:18,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_79 [2021-11-13 18:51:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-13 18:51:18,885 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-13 18:51:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure cas_init_hw [2021-11-13 18:51:18,886 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_init_hw [2021-11-13 18:51:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clean_rings [2021-11-13 18:51:18,886 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clean_rings [2021-11-13 18:51:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_free [2021-11-13 18:51:18,886 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_free [2021-11-13 18:51:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-13 18:51:18,887 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-13 18:51:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_write [2021-11-13 18:51:18,887 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_write [2021-11-13 18:51:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 18:51:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 18:51:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-13 18:51:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-13 18:51:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-13 18:51:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-13 18:51:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_recover [2021-11-13 18:51:18,889 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_recover [2021-11-13 18:51:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-11-13 18:51:18,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-11-13 18:51:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-13 18:51:18,889 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-13 18:51:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_stats [2021-11-13 18:51:18,890 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_stats [2021-11-13 18:51:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-13 18:51:18,890 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-13 18:51:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2021-11-13 18:51:18,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2021-11-13 18:51:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:51:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 18:51:18,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 18:51:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-13 18:51:18,891 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-13 18:51:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-13 18:51:18,892 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-13 18:51:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_107 [2021-11-13 18:51:18,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_107 [2021-11-13 18:51:21,204 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 18:59:10,626 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:59:10,626 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-13 18:59:10,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:59:10 BoogieIcfgContainer [2021-11-13 18:59:10,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:59:10,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:59:10,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:59:10,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:59:10,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:51:08" (1/3) ... [2021-11-13 18:59:10,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@709355f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:59:10, skipping insertion in model container [2021-11-13 18:59:10,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:51:17" (2/3) ... [2021-11-13 18:59:10,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@709355f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:59:10, skipping insertion in model container [2021-11-13 18:59:10,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:59:10" (3/3) ... [2021-11-13 18:59:10,643 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-13 18:59:10,649 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:59:10,649 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-13 18:59:10,720 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:59:10,733 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:59:10,733 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-13 18:59:10,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 3611 states, 2370 states have (on average 1.2831223628691983) internal successors, (3041), 2451 states have internal predecessors, (3041), 1066 states have call successors, (1066), 173 states have call predecessors, (1066), 172 states have return successors, (1062), 1048 states have call predecessors, (1062), 1062 states have call successors, (1062) [2021-11-13 18:59:10,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-13 18:59:10,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:59:10,844 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1] [2021-11-13 18:59:10,845 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:59:10,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:10,850 INFO L85 PathProgramCache]: Analyzing trace with hash 488379236, now seen corresponding path program 1 times [2021-11-13 18:59:10,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:10,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803608654] [2021-11-13 18:59:10,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:10,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:12,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:12,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:59:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:12,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:59:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:12,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:12,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:59:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:12,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:59:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:12,461 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 18:59:12,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:12,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803608654] [2021-11-13 18:59:12,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803608654] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:12,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:12,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:59:12,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462321323] [2021-11-13 18:59:12,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:12,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:59:12,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:12,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:59:12,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:59:12,516 INFO L87 Difference]: Start difference. First operand has 3611 states, 2370 states have (on average 1.2831223628691983) internal successors, (3041), 2451 states have internal predecessors, (3041), 1066 states have call successors, (1066), 173 states have call predecessors, (1066), 172 states have return successors, (1062), 1048 states have call predecessors, (1062), 1062 states have call successors, (1062) Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-11-13 18:59:13,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:59:13,435 INFO L93 Difference]: Finished difference Result 10186 states and 15111 transitions. [2021-11-13 18:59:13,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:59:13,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 50 [2021-11-13 18:59:13,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:59:13,515 INFO L225 Difference]: With dead ends: 10186 [2021-11-13 18:59:13,515 INFO L226 Difference]: Without dead ends: 6583 [2021-11-13 18:59:13,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:59:13,559 INFO L933 BasicCegarLoop]: 6155 mSDtfsCounter, 4881 mSDsluCounter, 16827 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4900 SdHoareTripleChecker+Valid, 22982 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 124.62ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.94ms IncrementalHoareTripleChecker+Time [2021-11-13 18:59:13,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4900 Valid, 22982 Invalid, 31 Unknown, 0 Unchecked, 124.62ms Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 68.94ms Time] [2021-11-13 18:59:13,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6583 states. [2021-11-13 18:59:14,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6583 to 6575. [2021-11-13 18:59:14,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6575 states, 4309 states have (on average 1.2703643536783475) internal successors, (5474), 4464 states have internal predecessors, (5474), 1936 states have call successors, (1936), 336 states have call predecessors, (1936), 327 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2021-11-13 18:59:14,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6575 states to 6575 states and 9424 transitions. [2021-11-13 18:59:14,147 INFO L78 Accepts]: Start accepts. Automaton has 6575 states and 9424 transitions. Word has length 50 [2021-11-13 18:59:14,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:59:14,148 INFO L470 AbstractCegarLoop]: Abstraction has 6575 states and 9424 transitions. [2021-11-13 18:59:14,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-11-13 18:59:14,149 INFO L276 IsEmpty]: Start isEmpty. Operand 6575 states and 9424 transitions. [2021-11-13 18:59:14,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-13 18:59:14,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:59:14,153 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-13 18:59:14,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:59:14,153 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:59:14,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:14,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1966173741, now seen corresponding path program 1 times [2021-11-13 18:59:14,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:14,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672318527] [2021-11-13 18:59:14,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:14,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:14,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:14,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:59:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:14,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:59:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:14,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:14,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:59:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:14,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:59:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:14,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 18:59:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:14,945 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 18:59:14,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:14,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672318527] [2021-11-13 18:59:14,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672318527] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:14,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:14,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:59:14,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103525993] [2021-11-13 18:59:14,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:14,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:59:14,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:14,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:59:14,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:59:14,955 INFO L87 Difference]: Start difference. First operand 6575 states and 9424 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-11-13 18:59:15,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:59:15,398 INFO L93 Difference]: Finished difference Result 6585 states and 9433 transitions. [2021-11-13 18:59:15,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:59:15,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 55 [2021-11-13 18:59:15,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:59:15,602 INFO L225 Difference]: With dead ends: 6585 [2021-11-13 18:59:15,602 INFO L226 Difference]: Without dead ends: 6583 [2021-11-13 18:59:15,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:59:15,609 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5079 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 57.59ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.33ms IncrementalHoareTripleChecker+Time [2021-11-13 18:59:15,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5079 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 57.59ms Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 45.33ms Time] [2021-11-13 18:59:15,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6583 states. [2021-11-13 18:59:15,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6583 to 6583. [2021-11-13 18:59:16,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6583 states, 4315 states have (on average 1.2699884125144845) internal successors, (5480), 4470 states have internal predecessors, (5480), 1936 states have call successors, (1936), 338 states have call predecessors, (1936), 329 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2021-11-13 18:59:16,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6583 states to 6583 states and 9430 transitions. [2021-11-13 18:59:16,068 INFO L78 Accepts]: Start accepts. Automaton has 6583 states and 9430 transitions. Word has length 55 [2021-11-13 18:59:16,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:59:16,069 INFO L470 AbstractCegarLoop]: Abstraction has 6583 states and 9430 transitions. [2021-11-13 18:59:16,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-11-13 18:59:16,069 INFO L276 IsEmpty]: Start isEmpty. Operand 6583 states and 9430 transitions. [2021-11-13 18:59:16,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-13 18:59:16,072 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:59:16,073 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-13 18:59:16,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:59:16,073 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:59:16,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:16,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1669212028, now seen corresponding path program 1 times [2021-11-13 18:59:16,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:16,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327819678] [2021-11-13 18:59:16,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:16,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:16,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:16,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:59:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:16,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:59:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:16,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:16,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:59:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:16,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:59:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:16,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 18:59:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:16,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:59:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:16,724 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-13 18:59:16,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:16,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327819678] [2021-11-13 18:59:16,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327819678] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:16,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:16,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:59:16,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020653930] [2021-11-13 18:59:16,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:16,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:59:16,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:16,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:59:16,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:59:16,728 INFO L87 Difference]: Start difference. First operand 6583 states and 9430 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-13 18:59:17,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:59:17,172 INFO L93 Difference]: Finished difference Result 6593 states and 9439 transitions. [2021-11-13 18:59:17,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:59:17,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2021-11-13 18:59:17,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:59:17,241 INFO L225 Difference]: With dead ends: 6593 [2021-11-13 18:59:17,241 INFO L226 Difference]: Without dead ends: 6591 [2021-11-13 18:59:17,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:59:17,253 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5078 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.22ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.11ms IncrementalHoareTripleChecker+Time [2021-11-13 18:59:17,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5078 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 54.22ms Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 44.11ms Time] [2021-11-13 18:59:17,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6591 states. [2021-11-13 18:59:17,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6591 to 6591. [2021-11-13 18:59:17,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6591 states, 4321 states have (on average 1.269613515389956) internal successors, (5486), 4476 states have internal predecessors, (5486), 1936 states have call successors, (1936), 340 states have call predecessors, (1936), 331 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2021-11-13 18:59:17,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6591 states to 6591 states and 9436 transitions. [2021-11-13 18:59:17,754 INFO L78 Accepts]: Start accepts. Automaton has 6591 states and 9436 transitions. Word has length 60 [2021-11-13 18:59:17,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:59:17,755 INFO L470 AbstractCegarLoop]: Abstraction has 6591 states and 9436 transitions. [2021-11-13 18:59:17,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-13 18:59:17,756 INFO L276 IsEmpty]: Start isEmpty. Operand 6591 states and 9436 transitions. [2021-11-13 18:59:17,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-13 18:59:17,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:59:17,764 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:59:17,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:59:17,765 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:59:17,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:17,766 INFO L85 PathProgramCache]: Analyzing trace with hash 63716950, now seen corresponding path program 1 times [2021-11-13 18:59:17,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:17,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322090445] [2021-11-13 18:59:17,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:17,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:18,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:18,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:59:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:18,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:59:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:18,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:18,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:59:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:18,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:59:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:18,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-13 18:59:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:18,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:59:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:18,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-13 18:59:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:18,401 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 18:59:18,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:18,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322090445] [2021-11-13 18:59:18,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322090445] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:18,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:18,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:59:18,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834128411] [2021-11-13 18:59:18,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:18,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:59:18,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:18,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:59:18,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:59:18,404 INFO L87 Difference]: Start difference. First operand 6591 states and 9436 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-11-13 18:59:18,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:59:18,832 INFO L93 Difference]: Finished difference Result 6601 states and 9445 transitions. [2021-11-13 18:59:18,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:59:18,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 72 [2021-11-13 18:59:18,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:59:18,903 INFO L225 Difference]: With dead ends: 6601 [2021-11-13 18:59:18,903 INFO L226 Difference]: Without dead ends: 6599 [2021-11-13 18:59:18,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:59:18,910 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5055 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5070 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.15ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.48ms IncrementalHoareTripleChecker+Time [2021-11-13 18:59:18,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5070 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 50.15ms Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 41.48ms Time] [2021-11-13 18:59:18,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6599 states. [2021-11-13 18:59:19,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6599 to 6599. [2021-11-13 18:59:19,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6599 states, 4327 states have (on average 1.2692396579616363) internal successors, (5492), 4482 states have internal predecessors, (5492), 1936 states have call successors, (1936), 342 states have call predecessors, (1936), 333 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2021-11-13 18:59:19,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6599 states to 6599 states and 9442 transitions. [2021-11-13 18:59:19,426 INFO L78 Accepts]: Start accepts. Automaton has 6599 states and 9442 transitions. Word has length 72 [2021-11-13 18:59:19,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:59:19,428 INFO L470 AbstractCegarLoop]: Abstraction has 6599 states and 9442 transitions. [2021-11-13 18:59:19,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-11-13 18:59:19,429 INFO L276 IsEmpty]: Start isEmpty. Operand 6599 states and 9442 transitions. [2021-11-13 18:59:19,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-13 18:59:19,432 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:59:19,435 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:59:19,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:59:19,436 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:59:19,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:19,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1640143452, now seen corresponding path program 1 times [2021-11-13 18:59:19,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:19,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379005936] [2021-11-13 18:59:19,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:19,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:19,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:19,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:59:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:19,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:59:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:19,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:19,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:59:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:19,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:59:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:20,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 18:59:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:20,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:59:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:20,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-13 18:59:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:20,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 18:59:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:20,055 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-13 18:59:20,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:20,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379005936] [2021-11-13 18:59:20,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379005936] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:20,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:20,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:59:20,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813253974] [2021-11-13 18:59:20,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:20,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:59:20,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:20,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:59:20,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:59:20,060 INFO L87 Difference]: Start difference. First operand 6599 states and 9442 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-13 18:59:20,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:59:20,572 INFO L93 Difference]: Finished difference Result 6609 states and 9451 transitions. [2021-11-13 18:59:20,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:59:20,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 70 [2021-11-13 18:59:20,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:59:20,622 INFO L225 Difference]: With dead ends: 6609 [2021-11-13 18:59:20,622 INFO L226 Difference]: Without dead ends: 6607 [2021-11-13 18:59:20,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:59:20,628 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5076 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.23ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.43ms IncrementalHoareTripleChecker+Time [2021-11-13 18:59:20,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5076 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 47.23ms Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 40.43ms Time] [2021-11-13 18:59:20,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6607 states. [2021-11-13 18:59:21,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6607 to 6607. [2021-11-13 18:59:21,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6607 states, 4333 states have (on average 1.2688668359104547) internal successors, (5498), 4488 states have internal predecessors, (5498), 1936 states have call successors, (1936), 344 states have call predecessors, (1936), 335 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2021-11-13 18:59:21,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6607 states to 6607 states and 9448 transitions. [2021-11-13 18:59:21,080 INFO L78 Accepts]: Start accepts. Automaton has 6607 states and 9448 transitions. Word has length 70 [2021-11-13 18:59:21,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:59:21,081 INFO L470 AbstractCegarLoop]: Abstraction has 6607 states and 9448 transitions. [2021-11-13 18:59:21,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-13 18:59:21,081 INFO L276 IsEmpty]: Start isEmpty. Operand 6607 states and 9448 transitions. [2021-11-13 18:59:21,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-13 18:59:21,083 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:59:21,083 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:59:21,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:59:21,083 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:59:21,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:21,084 INFO L85 PathProgramCache]: Analyzing trace with hash -245692781, now seen corresponding path program 1 times [2021-11-13 18:59:21,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:21,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268350345] [2021-11-13 18:59:21,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:21,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:21,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:21,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:59:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:21,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:59:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:21,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:21,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:59:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:21,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:59:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:21,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 18:59:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:21,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:59:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:21,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-13 18:59:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:21,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 18:59:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:21,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:59:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:21,739 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-13 18:59:21,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:21,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268350345] [2021-11-13 18:59:21,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268350345] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:21,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:21,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:59:21,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180724583] [2021-11-13 18:59:21,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:21,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:59:21,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:21,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:59:21,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:59:21,742 INFO L87 Difference]: Start difference. First operand 6607 states and 9448 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 18:59:22,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:59:22,176 INFO L93 Difference]: Finished difference Result 6617 states and 9457 transitions. [2021-11-13 18:59:22,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:59:22,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 75 [2021-11-13 18:59:22,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:59:22,218 INFO L225 Difference]: With dead ends: 6617 [2021-11-13 18:59:22,218 INFO L226 Difference]: Without dead ends: 6615 [2021-11-13 18:59:22,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:59:22,227 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5075 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 51.74ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.83ms IncrementalHoareTripleChecker+Time [2021-11-13 18:59:22,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5075 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 51.74ms Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 42.83ms Time] [2021-11-13 18:59:22,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6615 states. [2021-11-13 18:59:22,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6615 to 6615. [2021-11-13 18:59:22,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6615 states, 4339 states have (on average 1.2684950449412307) internal successors, (5504), 4494 states have internal predecessors, (5504), 1936 states have call successors, (1936), 346 states have call predecessors, (1936), 337 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2021-11-13 18:59:22,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6615 states to 6615 states and 9454 transitions. [2021-11-13 18:59:22,706 INFO L78 Accepts]: Start accepts. Automaton has 6615 states and 9454 transitions. Word has length 75 [2021-11-13 18:59:22,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:59:22,707 INFO L470 AbstractCegarLoop]: Abstraction has 6615 states and 9454 transitions. [2021-11-13 18:59:22,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 18:59:22,708 INFO L276 IsEmpty]: Start isEmpty. Operand 6615 states and 9454 transitions. [2021-11-13 18:59:22,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-13 18:59:22,710 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:59:22,710 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:59:22,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:59:22,711 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:59:22,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:22,712 INFO L85 PathProgramCache]: Analyzing trace with hash -340966847, now seen corresponding path program 1 times [2021-11-13 18:59:22,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:22,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072841515] [2021-11-13 18:59:22,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:22,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:23,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:23,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:59:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:23,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:59:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:23,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:23,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:59:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:23,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:59:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:23,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-13 18:59:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:23,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:59:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:23,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-13 18:59:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:23,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-13 18:59:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:23,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-13 18:59:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:23,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:59:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:23,329 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-13 18:59:23,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:23,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072841515] [2021-11-13 18:59:23,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072841515] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:23,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:23,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:59:23,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137493082] [2021-11-13 18:59:23,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:23,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:59:23,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:23,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:59:23,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:59:23,332 INFO L87 Difference]: Start difference. First operand 6615 states and 9454 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:59:23,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:59:23,756 INFO L93 Difference]: Finished difference Result 6625 states and 9463 transitions. [2021-11-13 18:59:23,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:59:23,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 87 [2021-11-13 18:59:23,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:59:23,797 INFO L225 Difference]: With dead ends: 6625 [2021-11-13 18:59:23,798 INFO L226 Difference]: Without dead ends: 6623 [2021-11-13 18:59:23,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:59:23,805 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5055 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5067 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.73ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.26ms IncrementalHoareTripleChecker+Time [2021-11-13 18:59:23,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5067 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 48.73ms Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 38.26ms Time] [2021-11-13 18:59:23,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6623 states. [2021-11-13 18:59:24,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6623 to 6623. [2021-11-13 18:59:24,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6623 states, 4345 states have (on average 1.2681242807825086) internal successors, (5510), 4500 states have internal predecessors, (5510), 1936 states have call successors, (1936), 348 states have call predecessors, (1936), 339 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2021-11-13 18:59:24,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6623 states to 6623 states and 9460 transitions. [2021-11-13 18:59:24,293 INFO L78 Accepts]: Start accepts. Automaton has 6623 states and 9460 transitions. Word has length 87 [2021-11-13 18:59:24,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:59:24,293 INFO L470 AbstractCegarLoop]: Abstraction has 6623 states and 9460 transitions. [2021-11-13 18:59:24,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:59:24,294 INFO L276 IsEmpty]: Start isEmpty. Operand 6623 states and 9460 transitions. [2021-11-13 18:59:24,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-13 18:59:24,302 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:59:24,302 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:59:24,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:59:24,303 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:59:24,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:24,303 INFO L85 PathProgramCache]: Analyzing trace with hash 664253334, now seen corresponding path program 1 times [2021-11-13 18:59:24,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:24,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880865727] [2021-11-13 18:59:24,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:24,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:24,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:24,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:59:24,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:24,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:59:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:24,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:24,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:59:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:24,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:59:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:24,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-13 18:59:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:24,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:59:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:24,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-13 18:59:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:25,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-13 18:59:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:25,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-13 18:59:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:25,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:59:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:25,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-13 18:59:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:25,036 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-13 18:59:25,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:25,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880865727] [2021-11-13 18:59:25,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880865727] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:25,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:25,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:59:25,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917520175] [2021-11-13 18:59:25,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:25,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:59:25,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:25,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:59:25,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:59:25,039 INFO L87 Difference]: Start difference. First operand 6623 states and 9460 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-13 18:59:25,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:59:25,625 INFO L93 Difference]: Finished difference Result 9275 states and 13163 transitions. [2021-11-13 18:59:25,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:59:25,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 92 [2021-11-13 18:59:25,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:59:25,683 INFO L225 Difference]: With dead ends: 9275 [2021-11-13 18:59:25,683 INFO L226 Difference]: Without dead ends: 9273 [2021-11-13 18:59:25,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:59:25,693 INFO L933 BasicCegarLoop]: 6814 mSDtfsCounter, 3792 mSDsluCounter, 16746 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3803 SdHoareTripleChecker+Valid, 23560 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 64.24ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.21ms IncrementalHoareTripleChecker+Time [2021-11-13 18:59:25,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3803 Valid, 23560 Invalid, 29 Unknown, 0 Unchecked, 64.24ms Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 45.21ms Time] [2021-11-13 18:59:25,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9273 states. [2021-11-13 18:59:26,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9273 to 9265. [2021-11-13 18:59:26,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9265 states, 6053 states have (on average 1.2651577730051213) internal successors, (7658), 6245 states have internal predecessors, (7658), 2677 states have call successors, (2677), 549 states have call predecessors, (2677), 532 states have return successors, (2819), 2608 states have call predecessors, (2819), 2671 states have call successors, (2819) [2021-11-13 18:59:26,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9265 states to 9265 states and 13154 transitions. [2021-11-13 18:59:26,381 INFO L78 Accepts]: Start accepts. Automaton has 9265 states and 13154 transitions. Word has length 92 [2021-11-13 18:59:26,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:59:26,382 INFO L470 AbstractCegarLoop]: Abstraction has 9265 states and 13154 transitions. [2021-11-13 18:59:26,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-13 18:59:26,382 INFO L276 IsEmpty]: Start isEmpty. Operand 9265 states and 13154 transitions. [2021-11-13 18:59:26,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-13 18:59:26,384 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:59:26,384 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:59:26,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:59:26,385 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:59:26,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:26,386 INFO L85 PathProgramCache]: Analyzing trace with hash 919459812, now seen corresponding path program 1 times [2021-11-13 18:59:26,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:26,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235853548] [2021-11-13 18:59:26,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:26,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:26,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:26,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:59:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:26,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:59:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:26,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:26,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:59:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:26,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:59:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:26,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 18:59:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:26,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:59:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:26,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-13 18:59:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:26,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 18:59:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:26,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:59:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:26,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-13 18:59:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:26,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 18:59:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:26,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:59:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:27,008 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-11-13 18:59:27,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:27,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235853548] [2021-11-13 18:59:27,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235853548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:27,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:27,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:59:27,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794955822] [2021-11-13 18:59:27,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:27,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:59:27,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:27,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:59:27,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:59:27,012 INFO L87 Difference]: Start difference. First operand 9265 states and 13154 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-13 18:59:27,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:59:27,545 INFO L93 Difference]: Finished difference Result 9275 states and 13163 transitions. [2021-11-13 18:59:27,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:59:27,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 90 [2021-11-13 18:59:27,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:59:27,602 INFO L225 Difference]: With dead ends: 9275 [2021-11-13 18:59:27,603 INFO L226 Difference]: Without dead ends: 9273 [2021-11-13 18:59:27,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:59:27,614 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5072 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.40ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.37ms IncrementalHoareTripleChecker+Time [2021-11-13 18:59:27,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5072 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 40.40ms Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 39.37ms Time] [2021-11-13 18:59:27,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9273 states. [2021-11-13 18:59:28,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9273 to 9273. [2021-11-13 18:59:28,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9273 states, 6059 states have (on average 1.2648951972272653) internal successors, (7664), 6251 states have internal predecessors, (7664), 2677 states have call successors, (2677), 551 states have call predecessors, (2677), 534 states have return successors, (2819), 2608 states have call predecessors, (2819), 2671 states have call successors, (2819) [2021-11-13 18:59:28,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9273 states to 9273 states and 13160 transitions. [2021-11-13 18:59:28,462 INFO L78 Accepts]: Start accepts. Automaton has 9273 states and 13160 transitions. Word has length 90 [2021-11-13 18:59:28,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:59:28,463 INFO L470 AbstractCegarLoop]: Abstraction has 9273 states and 13160 transitions. [2021-11-13 18:59:28,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-13 18:59:28,464 INFO L276 IsEmpty]: Start isEmpty. Operand 9273 states and 13160 transitions. [2021-11-13 18:59:28,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-13 18:59:28,466 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:59:28,467 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:59:28,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:59:28,467 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:59:28,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:28,468 INFO L85 PathProgramCache]: Analyzing trace with hash -2043786698, now seen corresponding path program 1 times [2021-11-13 18:59:28,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:28,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441375056] [2021-11-13 18:59:28,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:28,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:28,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:28,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:28,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:59:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:28,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:59:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:28,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:28,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:59:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:29,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:59:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:29,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-13 18:59:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:29,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:59:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:29,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-13 18:59:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:29,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-13 18:59:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:29,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-13 18:59:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:29,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:59:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:29,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-13 18:59:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:29,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:59:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:29,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-13 18:59:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:29,124 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-13 18:59:29,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:29,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441375056] [2021-11-13 18:59:29,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441375056] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:29,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:29,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:59:29,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923001490] [2021-11-13 18:59:29,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:29,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:59:29,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:29,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:59:29,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:59:29,128 INFO L87 Difference]: Start difference. First operand 9273 states and 13160 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-13 18:59:29,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:59:29,702 INFO L93 Difference]: Finished difference Result 9283 states and 13169 transitions. [2021-11-13 18:59:29,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:59:29,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 102 [2021-11-13 18:59:29,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:59:29,762 INFO L225 Difference]: With dead ends: 9283 [2021-11-13 18:59:29,763 INFO L226 Difference]: Without dead ends: 9281 [2021-11-13 18:59:29,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:59:29,771 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5055 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5064 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 39.98ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.85ms IncrementalHoareTripleChecker+Time [2021-11-13 18:59:29,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5064 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 39.98ms Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 46.85ms Time] [2021-11-13 18:59:29,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9281 states. [2021-11-13 18:59:30,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9281 to 9281. [2021-11-13 18:59:30,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9281 states, 6065 states have (on average 1.2646331409727947) internal successors, (7670), 6257 states have internal predecessors, (7670), 2677 states have call successors, (2677), 553 states have call predecessors, (2677), 536 states have return successors, (2819), 2608 states have call predecessors, (2819), 2671 states have call successors, (2819) [2021-11-13 18:59:30,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9281 states to 9281 states and 13166 transitions. [2021-11-13 18:59:30,452 INFO L78 Accepts]: Start accepts. Automaton has 9281 states and 13166 transitions. Word has length 102 [2021-11-13 18:59:30,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:59:30,453 INFO L470 AbstractCegarLoop]: Abstraction has 9281 states and 13166 transitions. [2021-11-13 18:59:30,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-13 18:59:30,453 INFO L276 IsEmpty]: Start isEmpty. Operand 9281 states and 13166 transitions. [2021-11-13 18:59:30,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-13 18:59:30,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:59:30,456 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:59:30,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 18:59:30,457 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:59:30,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:30,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1978817535, now seen corresponding path program 1 times [2021-11-13 18:59:30,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:30,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169814900] [2021-11-13 18:59:30,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:30,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:30,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:30,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:59:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:30,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:59:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:30,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:30,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:59:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:30,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:59:30,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:30,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-13 18:59:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:30,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:59:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:30,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-13 18:59:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:31,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-13 18:59:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:31,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-13 18:59:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:31,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:59:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:31,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-13 18:59:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:31,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:59:31,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:31,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-13 18:59:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:31,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 18:59:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:31,068 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 18:59:31,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:31,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169814900] [2021-11-13 18:59:31,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169814900] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:31,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:31,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:59:31,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132535121] [2021-11-13 18:59:31,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:31,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:59:31,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:31,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:59:31,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:59:31,072 INFO L87 Difference]: Start difference. First operand 9281 states and 13166 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-13 18:59:31,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:59:31,632 INFO L93 Difference]: Finished difference Result 9291 states and 13175 transitions. [2021-11-13 18:59:31,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:59:31,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 107 [2021-11-13 18:59:31,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:59:31,690 INFO L225 Difference]: With dead ends: 9291 [2021-11-13 18:59:31,690 INFO L226 Difference]: Without dead ends: 9289 [2021-11-13 18:59:31,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:59:31,700 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5055 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5063 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.04ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.53ms IncrementalHoareTripleChecker+Time [2021-11-13 18:59:31,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5063 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 40.04ms Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 42.53ms Time] [2021-11-13 18:59:31,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9289 states. [2021-11-13 18:59:32,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9289 to 9289. [2021-11-13 18:59:32,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9289 states, 6071 states have (on average 1.2643716027013672) internal successors, (7676), 6263 states have internal predecessors, (7676), 2677 states have call successors, (2677), 555 states have call predecessors, (2677), 538 states have return successors, (2819), 2608 states have call predecessors, (2819), 2671 states have call successors, (2819) [2021-11-13 18:59:32,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9289 states to 9289 states and 13172 transitions. [2021-11-13 18:59:32,731 INFO L78 Accepts]: Start accepts. Automaton has 9289 states and 13172 transitions. Word has length 107 [2021-11-13 18:59:32,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:59:32,732 INFO L470 AbstractCegarLoop]: Abstraction has 9289 states and 13172 transitions. [2021-11-13 18:59:32,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-13 18:59:32,732 INFO L276 IsEmpty]: Start isEmpty. Operand 9289 states and 13172 transitions. [2021-11-13 18:59:32,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-13 18:59:32,736 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:59:32,736 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:59:32,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 18:59:32,737 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:59:32,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:32,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1398982870, now seen corresponding path program 1 times [2021-11-13 18:59:32,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:32,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381210328] [2021-11-13 18:59:32,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:32,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:59:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:59:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:59:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:59:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-13 18:59:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:59:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-13 18:59:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-13 18:59:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-13 18:59:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:59:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-13 18:59:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:59:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-13 18:59:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 18:59:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-13 18:59:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:33,480 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-13 18:59:33,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:33,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381210328] [2021-11-13 18:59:33,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381210328] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:33,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:33,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:59:33,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222944287] [2021-11-13 18:59:33,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:33,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:59:33,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:33,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:59:33,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:59:33,484 INFO L87 Difference]: Start difference. First operand 9289 states and 13172 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-13 18:59:34,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:59:34,204 INFO L93 Difference]: Finished difference Result 9299 states and 13181 transitions. [2021-11-13 18:59:34,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:59:34,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 112 [2021-11-13 18:59:34,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:59:34,260 INFO L225 Difference]: With dead ends: 9299 [2021-11-13 18:59:34,260 INFO L226 Difference]: Without dead ends: 9297 [2021-11-13 18:59:34,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:59:34,269 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5055 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5062 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.96ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.84ms IncrementalHoareTripleChecker+Time [2021-11-13 18:59:34,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5062 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 41.96ms Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 52.84ms Time] [2021-11-13 18:59:34,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9297 states. [2021-11-13 18:59:34,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9297 to 9297. [2021-11-13 18:59:34,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9297 states, 6077 states have (on average 1.264110580878723) internal successors, (7682), 6269 states have internal predecessors, (7682), 2677 states have call successors, (2677), 557 states have call predecessors, (2677), 540 states have return successors, (2819), 2608 states have call predecessors, (2819), 2671 states have call successors, (2819) [2021-11-13 18:59:34,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9297 states to 9297 states and 13178 transitions. [2021-11-13 18:59:34,965 INFO L78 Accepts]: Start accepts. Automaton has 9297 states and 13178 transitions. Word has length 112 [2021-11-13 18:59:34,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:59:34,966 INFO L470 AbstractCegarLoop]: Abstraction has 9297 states and 13178 transitions. [2021-11-13 18:59:34,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-13 18:59:34,967 INFO L276 IsEmpty]: Start isEmpty. Operand 9297 states and 13178 transitions. [2021-11-13 18:59:34,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-13 18:59:34,969 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:59:34,969 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:59:34,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-13 18:59:34,970 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:59:34,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:34,970 INFO L85 PathProgramCache]: Analyzing trace with hash -134387164, now seen corresponding path program 1 times [2021-11-13 18:59:34,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:34,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458719420] [2021-11-13 18:59:34,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:34,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:59:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:59:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:59:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:59:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 18:59:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:59:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-13 18:59:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 18:59:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:59:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-13 18:59:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 18:59:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:59:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-13 18:59:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:59:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:59:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-13 18:59:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:35,605 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-11-13 18:59:35,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:35,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458719420] [2021-11-13 18:59:35,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458719420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:35,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:35,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:59:35,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762529431] [2021-11-13 18:59:35,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:35,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:59:35,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:35,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:59:35,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:59:35,609 INFO L87 Difference]: Start difference. First operand 9297 states and 13178 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-13 18:59:36,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:59:36,395 INFO L93 Difference]: Finished difference Result 9459 states and 13328 transitions. [2021-11-13 18:59:36,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:59:36,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 110 [2021-11-13 18:59:36,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:59:36,452 INFO L225 Difference]: With dead ends: 9459 [2021-11-13 18:59:36,452 INFO L226 Difference]: Without dead ends: 9457 [2021-11-13 18:59:36,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:59:36,461 INFO L933 BasicCegarLoop]: 5123 mSDtfsCounter, 5025 mSDsluCounter, 10297 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5031 SdHoareTripleChecker+Valid, 15420 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.74ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.92ms IncrementalHoareTripleChecker+Time [2021-11-13 18:59:36,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5031 Valid, 15420 Invalid, 29 Unknown, 0 Unchecked, 37.74ms Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 47.92ms Time] [2021-11-13 18:59:36,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9457 states. [2021-11-13 18:59:37,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9457 to 9455. [2021-11-13 18:59:37,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9455 states, 6185 states have (on average 1.2611156022635408) internal successors, (7800), 6379 states have internal predecessors, (7800), 2691 states have call successors, (2691), 593 states have call predecessors, (2691), 576 states have return successors, (2833), 2622 states have call predecessors, (2833), 2685 states have call successors, (2833) [2021-11-13 18:59:37,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9455 states to 9455 states and 13324 transitions. [2021-11-13 18:59:37,194 INFO L78 Accepts]: Start accepts. Automaton has 9455 states and 13324 transitions. Word has length 110 [2021-11-13 18:59:37,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:59:37,195 INFO L470 AbstractCegarLoop]: Abstraction has 9455 states and 13324 transitions. [2021-11-13 18:59:37,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-13 18:59:37,196 INFO L276 IsEmpty]: Start isEmpty. Operand 9455 states and 13324 transitions. [2021-11-13 18:59:37,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-13 18:59:37,198 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:59:37,198 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:59:37,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-13 18:59:37,199 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:59:37,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:37,199 INFO L85 PathProgramCache]: Analyzing trace with hash -252498058, now seen corresponding path program 1 times [2021-11-13 18:59:37,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:37,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133116039] [2021-11-13 18:59:37,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:37,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:59:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:59:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:59:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:59:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-13 18:59:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:59:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-13 18:59:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-13 18:59:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-13 18:59:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:59:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-13 18:59:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:59:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-13 18:59:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 18:59:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-13 18:59:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-13 18:59:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:59:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:37,849 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-11-13 18:59:37,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:37,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133116039] [2021-11-13 18:59:37,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133116039] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:37,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:37,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:59:37,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797495607] [2021-11-13 18:59:37,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:37,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:59:37,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:37,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:59:37,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:59:37,852 INFO L87 Difference]: Start difference. First operand 9455 states and 13324 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-13 18:59:38,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:59:38,535 INFO L93 Difference]: Finished difference Result 9561 states and 13406 transitions. [2021-11-13 18:59:38,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:59:38,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 122 [2021-11-13 18:59:38,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:59:38,590 INFO L225 Difference]: With dead ends: 9561 [2021-11-13 18:59:38,590 INFO L226 Difference]: Without dead ends: 9559 [2021-11-13 18:59:38,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:59:38,599 INFO L933 BasicCegarLoop]: 5111 mSDtfsCounter, 4997 mSDsluCounter, 10296 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5002 SdHoareTripleChecker+Valid, 15407 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 39.14ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.62ms IncrementalHoareTripleChecker+Time [2021-11-13 18:59:38,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5002 Valid, 15407 Invalid, 29 Unknown, 0 Unchecked, 39.14ms Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 44.62ms Time] [2021-11-13 18:59:38,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9559 states. [2021-11-13 18:59:39,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9559 to 9557. [2021-11-13 18:59:39,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9557 states, 6259 states have (on average 1.258667518772967) internal successors, (7878), 6453 states have internal predecessors, (7878), 2691 states have call successors, (2691), 621 states have call predecessors, (2691), 604 states have return successors, (2833), 2622 states have call predecessors, (2833), 2685 states have call successors, (2833) [2021-11-13 18:59:39,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9557 states to 9557 states and 13402 transitions. [2021-11-13 18:59:39,513 INFO L78 Accepts]: Start accepts. Automaton has 9557 states and 13402 transitions. Word has length 122 [2021-11-13 18:59:39,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:59:39,514 INFO L470 AbstractCegarLoop]: Abstraction has 9557 states and 13402 transitions. [2021-11-13 18:59:39,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-13 18:59:39,514 INFO L276 IsEmpty]: Start isEmpty. Operand 9557 states and 13402 transitions. [2021-11-13 18:59:39,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-13 18:59:39,517 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:59:39,518 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:59:39,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-13 18:59:39,518 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:59:39,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:39,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1616895812, now seen corresponding path program 1 times [2021-11-13 18:59:39,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:39,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698970243] [2021-11-13 18:59:39,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:39,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:59:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:59:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:59:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:59:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 18:59:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:59:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-13 18:59:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 18:59:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:59:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-13 18:59:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 18:59:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:59:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-13 18:59:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:59:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:59:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-13 18:59:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 18:59:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-13 18:59:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,223 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-11-13 18:59:40,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:40,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698970243] [2021-11-13 18:59:40,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698970243] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:40,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:40,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:59:40,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962415117] [2021-11-13 18:59:40,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:40,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:59:40,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:40,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:59:40,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:59:40,226 INFO L87 Difference]: Start difference. First operand 9557 states and 13402 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-13 18:59:40,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:59:40,735 INFO L93 Difference]: Finished difference Result 9567 states and 13411 transitions. [2021-11-13 18:59:40,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:59:40,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 120 [2021-11-13 18:59:40,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:59:40,796 INFO L225 Difference]: With dead ends: 9567 [2021-11-13 18:59:40,796 INFO L226 Difference]: Without dead ends: 9565 [2021-11-13 18:59:40,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:59:40,805 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5066 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.79ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.39ms IncrementalHoareTripleChecker+Time [2021-11-13 18:59:40,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5066 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 25.79ms Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 51.39ms Time] [2021-11-13 18:59:40,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9565 states. [2021-11-13 18:59:41,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9565 to 9565. [2021-11-13 18:59:41,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9565 states, 6265 states have (on average 1.2584197924980047) internal successors, (7884), 6459 states have internal predecessors, (7884), 2691 states have call successors, (2691), 623 states have call predecessors, (2691), 606 states have return successors, (2833), 2622 states have call predecessors, (2833), 2685 states have call successors, (2833) [2021-11-13 18:59:41,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9565 states to 9565 states and 13408 transitions. [2021-11-13 18:59:41,758 INFO L78 Accepts]: Start accepts. Automaton has 9565 states and 13408 transitions. Word has length 120 [2021-11-13 18:59:41,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:59:41,759 INFO L470 AbstractCegarLoop]: Abstraction has 9565 states and 13408 transitions. [2021-11-13 18:59:41,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-13 18:59:41,759 INFO L276 IsEmpty]: Start isEmpty. Operand 9565 states and 13408 transitions. [2021-11-13 18:59:41,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-13 18:59:41,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:59:41,762 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:59:41,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-13 18:59:41,763 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:59:41,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:41,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1056539021, now seen corresponding path program 1 times [2021-11-13 18:59:41,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:41,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120514880] [2021-11-13 18:59:41,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:41,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:59:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:59:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:59:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:59:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 18:59:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:59:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-13 18:59:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 18:59:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:59:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-13 18:59:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 18:59:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:59:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-13 18:59:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:59:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:59:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-13 18:59:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 18:59:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-13 18:59:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-13 18:59:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:42,499 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-11-13 18:59:42,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:42,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120514880] [2021-11-13 18:59:42,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120514880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:42,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:42,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:59:42,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580230859] [2021-11-13 18:59:42,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:42,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:59:42,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:42,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:59:42,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:59:42,506 INFO L87 Difference]: Start difference. First operand 9565 states and 13408 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 18:59:43,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:59:43,222 INFO L93 Difference]: Finished difference Result 9575 states and 13417 transitions. [2021-11-13 18:59:43,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:59:43,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 125 [2021-11-13 18:59:43,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:59:43,278 INFO L225 Difference]: With dead ends: 9575 [2021-11-13 18:59:43,278 INFO L226 Difference]: Without dead ends: 9573 [2021-11-13 18:59:43,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:59:43,287 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5065 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.00ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.69ms IncrementalHoareTripleChecker+Time [2021-11-13 18:59:43,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5065 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 34.00ms Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 42.69ms Time] [2021-11-13 18:59:43,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9573 states. [2021-11-13 18:59:43,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9573 to 9573. [2021-11-13 18:59:44,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9573 states, 6271 states have (on average 1.2581725402647106) internal successors, (7890), 6465 states have internal predecessors, (7890), 2691 states have call successors, (2691), 625 states have call predecessors, (2691), 608 states have return successors, (2833), 2622 states have call predecessors, (2833), 2685 states have call successors, (2833) [2021-11-13 18:59:44,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9573 states to 9573 states and 13414 transitions. [2021-11-13 18:59:44,059 INFO L78 Accepts]: Start accepts. Automaton has 9573 states and 13414 transitions. Word has length 125 [2021-11-13 18:59:44,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:59:44,059 INFO L470 AbstractCegarLoop]: Abstraction has 9573 states and 13414 transitions. [2021-11-13 18:59:44,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 18:59:44,060 INFO L276 IsEmpty]: Start isEmpty. Operand 9573 states and 13414 transitions. [2021-11-13 18:59:44,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-13 18:59:44,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:59:44,064 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:59:44,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-13 18:59:44,064 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:59:44,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:44,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1287571720, now seen corresponding path program 1 times [2021-11-13 18:59:44,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:44,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649516120] [2021-11-13 18:59:44,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:44,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:59:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:59:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:59:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:59:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:59:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 18:59:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:59:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:59:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:59:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-13 18:59:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:59:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 18:59:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:59:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 18:59:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-13 18:59:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,997 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 18:59:44,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:44,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649516120] [2021-11-13 18:59:44,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649516120] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:44,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:44,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:59:44,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715481086] [2021-11-13 18:59:44,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:44,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:59:44,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:45,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:59:45,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:59:45,000 INFO L87 Difference]: Start difference. First operand 9573 states and 13414 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-13 18:59:47,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:59:59,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:00:05,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:00:06,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 19:00:06,343 INFO L93 Difference]: Finished difference Result 10682 states and 15231 transitions. [2021-11-13 19:00:06,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 19:00:06,344 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 147 [2021-11-13 19:00:06,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 19:00:06,404 INFO L225 Difference]: With dead ends: 10682 [2021-11-13 19:00:06,404 INFO L226 Difference]: Without dead ends: 10680 [2021-11-13 19:00:06,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-13 19:00:06,415 INFO L933 BasicCegarLoop]: 6174 mSDtfsCounter, 4720 mSDsluCounter, 14053 mSDsCounter, 0 mSdLazyCounter, 7119 mSolverCounterSat, 2525 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17873.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5509 SdHoareTripleChecker+Valid, 20227 SdHoareTripleChecker+Invalid, 9645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 157.50ms SdHoareTripleChecker+Time, 2525 IncrementalHoareTripleChecker+Valid, 7119 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20073.35ms IncrementalHoareTripleChecker+Time [2021-11-13 19:00:06,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5509 Valid, 20227 Invalid, 9645 Unknown, 0 Unchecked, 157.50ms Time], IncrementalHoareTripleChecker [2525 Valid, 7119 Invalid, 1 Unknown, 0 Unchecked, 20073.35ms Time] [2021-11-13 19:00:06,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10680 states. [2021-11-13 19:00:07,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10680 to 9928. [2021-11-13 19:00:07,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9928 states, 6517 states have (on average 1.2602424428417984) internal successors, (8213), 6726 states have internal predecessors, (8213), 2765 states have call successors, (2765), 627 states have call predecessors, (2765), 643 states have return successors, (2997), 2713 states have call predecessors, (2997), 2759 states have call successors, (2997) [2021-11-13 19:00:07,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9928 states to 9928 states and 13975 transitions. [2021-11-13 19:00:07,355 INFO L78 Accepts]: Start accepts. Automaton has 9928 states and 13975 transitions. Word has length 147 [2021-11-13 19:00:07,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 19:00:07,357 INFO L470 AbstractCegarLoop]: Abstraction has 9928 states and 13975 transitions. [2021-11-13 19:00:07,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-13 19:00:07,357 INFO L276 IsEmpty]: Start isEmpty. Operand 9928 states and 13975 transitions. [2021-11-13 19:00:07,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-13 19:00:07,361 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 19:00:07,361 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 19:00:07,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-13 19:00:07,362 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 19:00:07,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:00:07,362 INFO L85 PathProgramCache]: Analyzing trace with hash 2063342692, now seen corresponding path program 1 times [2021-11-13 19:00:07,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:00:07,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520303225] [2021-11-13 19:00:07,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:00:07,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:00:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:07,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:00:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:07,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 19:00:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:07,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 19:00:07,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:07,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:00:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:07,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 19:00:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:07,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 19:00:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:07,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 19:00:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:07,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 19:00:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:07,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-13 19:00:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:07,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 19:00:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:07,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 19:00:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:07,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-13 19:00:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:07,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 19:00:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:07,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 19:00:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:07,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-13 19:00:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:07,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 19:00:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:08,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 19:00:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:08,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-13 19:00:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:08,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 19:00:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:08,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-13 19:00:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:08,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-13 19:00:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:08,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-13 19:00:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:08,055 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-13 19:00:08,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:00:08,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520303225] [2021-11-13 19:00:08,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520303225] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 19:00:08,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 19:00:08,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 19:00:08,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103725646] [2021-11-13 19:00:08,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:00:08,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 19:00:08,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:00:08,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 19:00:08,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 19:00:08,059 INFO L87 Difference]: Start difference. First operand 9928 states and 13975 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-13 19:00:08,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 19:00:08,739 INFO L93 Difference]: Finished difference Result 9938 states and 13984 transitions. [2021-11-13 19:00:08,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 19:00:08,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 130 [2021-11-13 19:00:08,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 19:00:08,791 INFO L225 Difference]: With dead ends: 9938 [2021-11-13 19:00:08,791 INFO L226 Difference]: Without dead ends: 9936 [2021-11-13 19:00:08,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 19:00:08,800 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5064 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.11ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.77ms IncrementalHoareTripleChecker+Time [2021-11-13 19:00:08,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5064 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 30.11ms Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 40.77ms Time] [2021-11-13 19:00:08,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9936 states. [2021-11-13 19:00:09,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9936 to 9936. [2021-11-13 19:00:09,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9936 states, 6523 states have (on average 1.2600030660738923) internal successors, (8219), 6732 states have internal predecessors, (8219), 2765 states have call successors, (2765), 629 states have call predecessors, (2765), 645 states have return successors, (2997), 2713 states have call predecessors, (2997), 2759 states have call successors, (2997) [2021-11-13 19:00:09,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9936 states to 9936 states and 13981 transitions. [2021-11-13 19:00:09,684 INFO L78 Accepts]: Start accepts. Automaton has 9936 states and 13981 transitions. Word has length 130 [2021-11-13 19:00:09,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 19:00:09,685 INFO L470 AbstractCegarLoop]: Abstraction has 9936 states and 13981 transitions. [2021-11-13 19:00:09,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-13 19:00:09,685 INFO L276 IsEmpty]: Start isEmpty. Operand 9936 states and 13981 transitions. [2021-11-13 19:00:09,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-13 19:00:09,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 19:00:09,687 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 19:00:09,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-13 19:00:09,688 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 19:00:09,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:00:09,688 INFO L85 PathProgramCache]: Analyzing trace with hash 413119670, now seen corresponding path program 1 times [2021-11-13 19:00:09,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:00:09,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530914417] [2021-11-13 19:00:09,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:00:09,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:00:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:00:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 19:00:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 19:00:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:00:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 19:00:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 19:00:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-13 19:00:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 19:00:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-13 19:00:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-13 19:00:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-13 19:00:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 19:00:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-13 19:00:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 19:00:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-13 19:00:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 19:00:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-13 19:00:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-13 19:00:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 19:00:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 19:00:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-13 19:00:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-13 19:00:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-11-13 19:00:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:10,357 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2021-11-13 19:00:10,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:00:10,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530914417] [2021-11-13 19:00:10,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530914417] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 19:00:10,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 19:00:10,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 19:00:10,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589172437] [2021-11-13 19:00:10,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:00:10,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 19:00:10,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:00:10,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 19:00:10,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 19:00:10,362 INFO L87 Difference]: Start difference. First operand 9936 states and 13981 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-13 19:00:11,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 19:00:11,139 INFO L93 Difference]: Finished difference Result 9988 states and 14025 transitions. [2021-11-13 19:00:11,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 19:00:11,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 142 [2021-11-13 19:00:11,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 19:00:11,183 INFO L225 Difference]: With dead ends: 9988 [2021-11-13 19:00:11,183 INFO L226 Difference]: Without dead ends: 9984 [2021-11-13 19:00:11,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 19:00:11,190 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5010 mSDsluCounter, 10226 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5011 SdHoareTripleChecker+Valid, 15325 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.67ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.16ms IncrementalHoareTripleChecker+Time [2021-11-13 19:00:11,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5011 Valid, 15325 Invalid, 29 Unknown, 0 Unchecked, 32.67ms Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 44.16ms Time] [2021-11-13 19:00:11,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9984 states. [2021-11-13 19:00:11,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9984 to 9982. [2021-11-13 19:00:11,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9982 states, 6558 states have (on average 1.2590728880756328) internal successors, (8257), 6766 states have internal predecessors, (8257), 2765 states have call successors, (2765), 641 states have call predecessors, (2765), 656 states have return successors, (2997), 2713 states have call predecessors, (2997), 2759 states have call successors, (2997) [2021-11-13 19:00:11,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9982 states to 9982 states and 14019 transitions. [2021-11-13 19:00:11,931 INFO L78 Accepts]: Start accepts. Automaton has 9982 states and 14019 transitions. Word has length 142 [2021-11-13 19:00:11,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 19:00:11,931 INFO L470 AbstractCegarLoop]: Abstraction has 9982 states and 14019 transitions. [2021-11-13 19:00:11,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-13 19:00:11,932 INFO L276 IsEmpty]: Start isEmpty. Operand 9982 states and 14019 transitions. [2021-11-13 19:00:11,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-13 19:00:11,935 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 19:00:11,935 INFO L514 BasicCegarLoop]: trace histogram [19, 18, 18, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 19:00:11,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-13 19:00:11,935 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 19:00:11,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:00:11,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1077420420, now seen corresponding path program 1 times [2021-11-13 19:00:11,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:00:11,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100780244] [2021-11-13 19:00:11,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:00:11,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:00:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:00:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 19:00:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 19:00:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:00:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 19:00:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 19:00:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 19:00:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 19:00:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-13 19:00:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 19:00:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 19:00:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-13 19:00:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 19:00:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 19:00:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-13 19:00:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 19:00:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 19:00:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-13 19:00:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 19:00:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-13 19:00:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-13 19:00:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-13 19:00:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 19:00:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-13 19:00:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:12,679 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2021-11-13 19:00:12,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:00:12,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100780244] [2021-11-13 19:00:12,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100780244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 19:00:12,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 19:00:12,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 19:00:12,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362102237] [2021-11-13 19:00:12,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:00:12,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 19:00:12,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:00:12,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 19:00:12,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 19:00:12,683 INFO L87 Difference]: Start difference. First operand 9982 states and 14019 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-13 19:00:13,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 19:00:13,487 INFO L93 Difference]: Finished difference Result 9988 states and 14024 transitions. [2021-11-13 19:00:13,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 19:00:13,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 140 [2021-11-13 19:00:13,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 19:00:13,523 INFO L225 Difference]: With dead ends: 9988 [2021-11-13 19:00:13,523 INFO L226 Difference]: Without dead ends: 9773 [2021-11-13 19:00:13,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 19:00:13,532 INFO L933 BasicCegarLoop]: 5100 mSDtfsCounter, 5062 mSDsluCounter, 10174 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5062 SdHoareTripleChecker+Valid, 15274 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.49ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.98ms IncrementalHoareTripleChecker+Time [2021-11-13 19:00:13,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5062 Valid, 15274 Invalid, 24 Unknown, 0 Unchecked, 32.49ms Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 36.98ms Time] [2021-11-13 19:00:13,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9773 states. [2021-11-13 19:00:14,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9773 to 9773. [2021-11-13 19:00:14,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9773 states, 6431 states have (on average 1.263567096874514) internal successors, (8126), 6637 states have internal predecessors, (8126), 2719 states have call successors, (2719), 604 states have call predecessors, (2719), 620 states have return successors, (2954), 2670 states have call predecessors, (2954), 2716 states have call successors, (2954) [2021-11-13 19:00:14,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9773 states to 9773 states and 13799 transitions. [2021-11-13 19:00:14,393 INFO L78 Accepts]: Start accepts. Automaton has 9773 states and 13799 transitions. Word has length 140 [2021-11-13 19:00:14,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 19:00:14,394 INFO L470 AbstractCegarLoop]: Abstraction has 9773 states and 13799 transitions. [2021-11-13 19:00:14,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-13 19:00:14,394 INFO L276 IsEmpty]: Start isEmpty. Operand 9773 states and 13799 transitions. [2021-11-13 19:00:14,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-13 19:00:14,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 19:00:14,398 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 19:00:14,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-13 19:00:14,399 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 19:00:14,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:00:14,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1142503990, now seen corresponding path program 1 times [2021-11-13 19:00:14,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:00:14,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664465503] [2021-11-13 19:00:14,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:00:14,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:00:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:14,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:00:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:14,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 19:00:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 19:00:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:00:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:00:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:00:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 19:00:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:00:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:00:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:00:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 19:00:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:00:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:00:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:00:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 19:00:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-13 19:00:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:00:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 19:00:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 19:00:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 19:00:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 19:00:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-13 19:00:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 19:00:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-13 19:00:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-13 19:00:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 19:00:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 19:00:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-13 19:00:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:15,277 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-13 19:00:15,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:00:15,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664465503] [2021-11-13 19:00:15,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664465503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 19:00:15,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 19:00:15,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 19:00:15,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453921021] [2021-11-13 19:00:15,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:00:15,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 19:00:15,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:00:15,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 19:00:15,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 19:00:15,280 INFO L87 Difference]: Start difference. First operand 9773 states and 13799 transitions. Second operand has 7 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-13 19:00:17,404 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:00:19,530 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:00:38,331 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:00:45,239 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:00:47,233 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:00:48,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 19:00:48,334 INFO L93 Difference]: Finished difference Result 10768 states and 15409 transitions. [2021-11-13 19:00:48,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 19:00:48,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 180 [2021-11-13 19:00:48,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 19:00:48,379 INFO L225 Difference]: With dead ends: 10768 [2021-11-13 19:00:48,379 INFO L226 Difference]: Without dead ends: 10766 [2021-11-13 19:00:48,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-11-13 19:00:48,388 INFO L933 BasicCegarLoop]: 5061 mSDtfsCounter, 10284 mSDsluCounter, 13065 mSDsCounter, 0 mSdLazyCounter, 11691 mSolverCounterSat, 8030 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28194.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10879 SdHoareTripleChecker+Valid, 18126 SdHoareTripleChecker+Invalid, 19723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 171.14ms SdHoareTripleChecker+Time, 8030 IncrementalHoareTripleChecker+Valid, 11691 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31659.94ms IncrementalHoareTripleChecker+Time [2021-11-13 19:00:48,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10879 Valid, 18126 Invalid, 19723 Unknown, 0 Unchecked, 171.14ms Time], IncrementalHoareTripleChecker [8030 Valid, 11691 Invalid, 2 Unknown, 0 Unchecked, 31659.94ms Time] [2021-11-13 19:00:48,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2021-11-13 19:00:49,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 9809. [2021-11-13 19:00:49,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9809 states, 6437 states have (on average 1.2614572005592668) internal successors, (8120), 6643 states have internal predecessors, (8120), 2733 states have call successors, (2733), 606 states have call predecessors, (2733), 636 states have return successors, (2975), 2699 states have call predecessors, (2975), 2730 states have call successors, (2975) [2021-11-13 19:00:49,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9809 states to 9809 states and 13828 transitions. [2021-11-13 19:00:49,408 INFO L78 Accepts]: Start accepts. Automaton has 9809 states and 13828 transitions. Word has length 180 [2021-11-13 19:00:49,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 19:00:49,409 INFO L470 AbstractCegarLoop]: Abstraction has 9809 states and 13828 transitions. [2021-11-13 19:00:49,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-13 19:00:49,409 INFO L276 IsEmpty]: Start isEmpty. Operand 9809 states and 13828 transitions. [2021-11-13 19:00:49,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-13 19:00:49,413 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 19:00:49,413 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 19:00:49,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-13 19:00:49,414 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 19:00:49,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:00:49,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1210655949, now seen corresponding path program 1 times [2021-11-13 19:00:49,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:00:49,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730110165] [2021-11-13 19:00:49,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:00:49,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:00:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:49,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:00:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:49,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 19:00:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:49,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 19:00:49,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:49,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:00:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:49,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:00:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:00:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 19:00:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:00:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:00:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:00:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 19:00:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:00:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:00:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:00:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 19:00:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-13 19:00:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:00:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 19:00:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 19:00:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 19:00:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-13 19:00:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 19:00:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-13 19:00:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-13 19:00:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-13 19:00:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 19:00:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 19:00:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-11-13 19:00:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:50,224 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-13 19:00:50,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:00:50,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730110165] [2021-11-13 19:00:50,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730110165] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 19:00:50,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 19:00:50,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 19:00:50,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340119039] [2021-11-13 19:00:50,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:00:50,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 19:00:50,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:00:50,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 19:00:50,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 19:00:50,228 INFO L87 Difference]: Start difference. First operand 9809 states and 13828 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-13 19:00:52,379 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:00:54,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:01:12,219 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:01:13,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 19:01:13,011 INFO L93 Difference]: Finished difference Result 20556 states and 29231 transitions. [2021-11-13 19:01:13,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 19:01:13,011 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 188 [2021-11-13 19:01:13,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 19:01:13,074 INFO L225 Difference]: With dead ends: 20556 [2021-11-13 19:01:13,074 INFO L226 Difference]: Without dead ends: 10766 [2021-11-13 19:01:13,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-13 19:01:13,140 INFO L933 BasicCegarLoop]: 4490 mSDtfsCounter, 3677 mSDsluCounter, 9280 mSDsCounter, 0 mSdLazyCounter, 6547 mSolverCounterSat, 3472 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19355.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3987 SdHoareTripleChecker+Valid, 13770 SdHoareTripleChecker+Invalid, 10021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 98.73ms SdHoareTripleChecker+Time, 3472 IncrementalHoareTripleChecker+Valid, 6547 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21510.97ms IncrementalHoareTripleChecker+Time [2021-11-13 19:01:13,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3987 Valid, 13770 Invalid, 10021 Unknown, 0 Unchecked, 98.73ms Time], IncrementalHoareTripleChecker [3472 Valid, 6547 Invalid, 2 Unknown, 0 Unchecked, 21510.97ms Time] [2021-11-13 19:01:13,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2021-11-13 19:01:14,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 9813. [2021-11-13 19:01:14,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9813 states, 6439 states have (on average 1.2613759900605683) internal successors, (8122), 6647 states have internal predecessors, (8122), 2733 states have call successors, (2733), 606 states have call predecessors, (2733), 638 states have return successors, (2977), 2699 states have call predecessors, (2977), 2730 states have call successors, (2977) [2021-11-13 19:01:14,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9813 states to 9813 states and 13832 transitions. [2021-11-13 19:01:14,169 INFO L78 Accepts]: Start accepts. Automaton has 9813 states and 13832 transitions. Word has length 188 [2021-11-13 19:01:14,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 19:01:14,170 INFO L470 AbstractCegarLoop]: Abstraction has 9813 states and 13832 transitions. [2021-11-13 19:01:14,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-13 19:01:14,171 INFO L276 IsEmpty]: Start isEmpty. Operand 9813 states and 13832 transitions. [2021-11-13 19:01:14,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-13 19:01:14,175 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 19:01:14,175 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 19:01:14,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-13 19:01:14,176 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 19:01:14,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:01:14,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1500842331, now seen corresponding path program 1 times [2021-11-13 19:01:14,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:01:14,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582839870] [2021-11-13 19:01:14,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:01:14,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:01:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:01:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 19:01:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 19:01:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:01:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:01:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:01:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 19:01:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:01:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:01:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:01:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 19:01:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:01:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:01:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:01:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 19:01:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-13 19:01:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:01:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 19:01:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 19:01:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 19:01:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-13 19:01:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 19:01:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 19:01:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 19:01:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-13 19:01:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-13 19:01:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 19:01:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 19:01:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-13 19:01:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:14,906 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-13 19:01:14,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:01:14,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582839870] [2021-11-13 19:01:14,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582839870] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 19:01:14,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 19:01:14,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 19:01:14,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853785054] [2021-11-13 19:01:14,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:01:14,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 19:01:14,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:01:14,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 19:01:14,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 19:01:14,912 INFO L87 Difference]: Start difference. First operand 9813 states and 13832 transitions. Second operand has 5 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 4 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-13 19:01:17,068 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:01:19,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:01:31,508 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:01:36,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 19:01:36,235 INFO L93 Difference]: Finished difference Result 20927 states and 29809 transitions. [2021-11-13 19:01:36,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 19:01:36,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 4 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 192 [2021-11-13 19:01:36,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 19:01:36,285 INFO L225 Difference]: With dead ends: 20927 [2021-11-13 19:01:36,285 INFO L226 Difference]: Without dead ends: 11133 [2021-11-13 19:01:36,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 19:01:36,336 INFO L933 BasicCegarLoop]: 4560 mSDtfsCounter, 4120 mSDsluCounter, 5784 mSDsCounter, 0 mSdLazyCounter, 4564 mSolverCounterSat, 3644 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17602.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4495 SdHoareTripleChecker+Valid, 10344 SdHoareTripleChecker+Invalid, 8210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 89.03ms SdHoareTripleChecker+Time, 3644 IncrementalHoareTripleChecker+Valid, 4564 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19947.35ms IncrementalHoareTripleChecker+Time [2021-11-13 19:01:36,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4495 Valid, 10344 Invalid, 8210 Unknown, 0 Unchecked, 89.03ms Time], IncrementalHoareTripleChecker [3644 Valid, 4564 Invalid, 2 Unknown, 0 Unchecked, 19947.35ms Time] [2021-11-13 19:01:36,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11133 states. [2021-11-13 19:01:37,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11133 to 9821. [2021-11-13 19:01:37,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9821 states, 6445 states have (on average 1.26144297905353) internal successors, (8130), 6654 states have internal predecessors, (8130), 2734 states have call successors, (2734), 606 states have call predecessors, (2734), 639 states have return successors, (2980), 2700 states have call predecessors, (2980), 2731 states have call successors, (2980) [2021-11-13 19:01:37,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9821 states to 9821 states and 13844 transitions. [2021-11-13 19:01:37,180 INFO L78 Accepts]: Start accepts. Automaton has 9821 states and 13844 transitions. Word has length 192 [2021-11-13 19:01:37,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 19:01:37,180 INFO L470 AbstractCegarLoop]: Abstraction has 9821 states and 13844 transitions. [2021-11-13 19:01:37,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 4 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-13 19:01:37,181 INFO L276 IsEmpty]: Start isEmpty. Operand 9821 states and 13844 transitions. [2021-11-13 19:01:37,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-13 19:01:37,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 19:01:37,185 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 19:01:37,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-13 19:01:37,186 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 19:01:37,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:01:37,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1090925634, now seen corresponding path program 1 times [2021-11-13 19:01:37,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:01:37,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274662561] [2021-11-13 19:01:37,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:01:37,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:01:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:01:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 19:01:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 19:01:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:01:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:01:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:01:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 19:01:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:01:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:01:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:01:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 19:01:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:01:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:01:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:01:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 19:01:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-13 19:01:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:01:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 19:01:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 19:01:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 19:01:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 19:01:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 19:01:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-13 19:01:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-13 19:01:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-13 19:01:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 19:01:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 19:01:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 19:01:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-13 19:01:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:01:37,907 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-11-13 19:01:37,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:01:37,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274662561] [2021-11-13 19:01:37,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274662561] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 19:01:37,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 19:01:37,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 19:01:37,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974915843] [2021-11-13 19:01:37,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:01:37,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 19:01:37,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:01:37,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 19:01:37,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 19:01:37,911 INFO L87 Difference]: Start difference. First operand 9821 states and 13844 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-13 19:01:40,061 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:01:42,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:01:44,270 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:02:02,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 19:02:02,188 INFO L93 Difference]: Finished difference Result 20857 states and 29946 transitions. [2021-11-13 19:02:02,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 19:02:02,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 192 [2021-11-13 19:02:02,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 19:02:02,436 INFO L225 Difference]: With dead ends: 20857 [2021-11-13 19:02:02,436 INFO L226 Difference]: Without dead ends: 11055 [2021-11-13 19:02:02,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-13 19:02:02,462 INFO L933 BasicCegarLoop]: 4500 mSDtfsCounter, 5922 mSDsluCounter, 7519 mSDsCounter, 0 mSdLazyCounter, 5699 mSolverCounterSat, 5870 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20366.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6156 SdHoareTripleChecker+Valid, 12019 SdHoareTripleChecker+Invalid, 11572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 103.60ms SdHoareTripleChecker+Time, 5870 IncrementalHoareTripleChecker+Valid, 5699 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22984.01ms IncrementalHoareTripleChecker+Time [2021-11-13 19:02:02,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6156 Valid, 12019 Invalid, 11572 Unknown, 0 Unchecked, 103.60ms Time], IncrementalHoareTripleChecker [5870 Valid, 5699 Invalid, 3 Unknown, 0 Unchecked, 22984.01ms Time] [2021-11-13 19:02:02,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11055 states. [2021-11-13 19:02:03,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11055 to 9651. [2021-11-13 19:02:03,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9651 states, 6357 states have (on average 1.2639609878873683) internal successors, (8035), 6557 states have internal predecessors, (8035), 2668 states have call successors, (2668), 601 states have call predecessors, (2668), 623 states have return successors, (2870), 2630 states have call predecessors, (2870), 2665 states have call successors, (2870) [2021-11-13 19:02:03,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9651 states to 9651 states and 13573 transitions. [2021-11-13 19:02:03,233 INFO L78 Accepts]: Start accepts. Automaton has 9651 states and 13573 transitions. Word has length 192 [2021-11-13 19:02:03,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 19:02:03,234 INFO L470 AbstractCegarLoop]: Abstraction has 9651 states and 13573 transitions. [2021-11-13 19:02:03,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-13 19:02:03,234 INFO L276 IsEmpty]: Start isEmpty. Operand 9651 states and 13573 transitions. [2021-11-13 19:02:03,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-13 19:02:03,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 19:02:03,239 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 19:02:03,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-13 19:02:03,240 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 19:02:03,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:02:03,240 INFO L85 PathProgramCache]: Analyzing trace with hash 483802596, now seen corresponding path program 1 times [2021-11-13 19:02:03,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:02:03,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400470079] [2021-11-13 19:02:03,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:02:03,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:02:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:03,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:02:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:03,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 19:02:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:03,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 19:02:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:03,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:02:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:03,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:02:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:03,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:02:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:03,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 19:02:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:03,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:02:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:03,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:02:03,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:03,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:02:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:03,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 19:02:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:03,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:02:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:03,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:02:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:04,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:02:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:04,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 19:02:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:04,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-13 19:02:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:04,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:02:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:04,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 19:02:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:04,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 19:02:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:04,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 19:02:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:04,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-13 19:02:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:04,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 19:02:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:04,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 19:02:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:04,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 19:02:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:04,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-13 19:02:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:04,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-13 19:02:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:04,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 19:02:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:04,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 19:02:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:04,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-13 19:02:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:04,156 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-13 19:02:04,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:02:04,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400470079] [2021-11-13 19:02:04,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400470079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 19:02:04,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 19:02:04,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 19:02:04,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899653105] [2021-11-13 19:02:04,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:02:04,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 19:02:04,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:02:04,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 19:02:04,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 19:02:04,160 INFO L87 Difference]: Start difference. First operand 9651 states and 13573 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-13 19:02:06,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:02:08,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:02:25,509 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:02:27,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 19:02:27,251 INFO L93 Difference]: Finished difference Result 10903 states and 15630 transitions. [2021-11-13 19:02:27,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 19:02:27,252 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 195 [2021-11-13 19:02:27,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 19:02:27,308 INFO L225 Difference]: With dead ends: 10903 [2021-11-13 19:02:27,309 INFO L226 Difference]: Without dead ends: 10901 [2021-11-13 19:02:27,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-11-13 19:02:27,317 INFO L933 BasicCegarLoop]: 4461 mSDtfsCounter, 7544 mSDsluCounter, 9226 mSDsCounter, 0 mSdLazyCounter, 6603 mSolverCounterSat, 5435 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19293.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7983 SdHoareTripleChecker+Valid, 13687 SdHoareTripleChecker+Invalid, 12040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 110.33ms SdHoareTripleChecker+Time, 5435 IncrementalHoareTripleChecker+Valid, 6603 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21908.60ms IncrementalHoareTripleChecker+Time [2021-11-13 19:02:27,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7983 Valid, 13687 Invalid, 12040 Unknown, 0 Unchecked, 110.33ms Time], IncrementalHoareTripleChecker [5435 Valid, 6603 Invalid, 2 Unknown, 0 Unchecked, 21908.60ms Time] [2021-11-13 19:02:27,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10901 states. [2021-11-13 19:02:27,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10901 to 9667. [2021-11-13 19:02:27,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9667 states, 6369 states have (on average 1.2634636520646882) internal successors, (8047), 6569 states have internal predecessors, (8047), 2668 states have call successors, (2668), 605 states have call predecessors, (2668), 627 states have return successors, (2870), 2630 states have call predecessors, (2870), 2665 states have call successors, (2870) [2021-11-13 19:02:28,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9667 states to 9667 states and 13585 transitions. [2021-11-13 19:02:28,025 INFO L78 Accepts]: Start accepts. Automaton has 9667 states and 13585 transitions. Word has length 195 [2021-11-13 19:02:28,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 19:02:28,026 INFO L470 AbstractCegarLoop]: Abstraction has 9667 states and 13585 transitions. [2021-11-13 19:02:28,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-13 19:02:28,026 INFO L276 IsEmpty]: Start isEmpty. Operand 9667 states and 13585 transitions. [2021-11-13 19:02:28,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-13 19:02:28,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 19:02:28,030 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 19:02:28,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-13 19:02:28,031 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 19:02:28,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:02:28,031 INFO L85 PathProgramCache]: Analyzing trace with hash 157709175, now seen corresponding path program 1 times [2021-11-13 19:02:28,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:02:28,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166992941] [2021-11-13 19:02:28,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:02:28,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:02:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:02:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 19:02:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 19:02:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:02:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:02:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:02:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 19:02:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:02:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:02:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:02:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 19:02:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:02:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:02:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:02:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 19:02:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-13 19:02:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:02:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 19:02:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 19:02:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 19:02:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-13 19:02:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 19:02:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 19:02:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 19:02:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-13 19:02:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-13 19:02:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 19:02:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 19:02:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-13 19:02:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:28,704 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-13 19:02:28,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:02:28,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166992941] [2021-11-13 19:02:28,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166992941] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 19:02:28,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 19:02:28,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 19:02:28,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501245179] [2021-11-13 19:02:28,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:02:28,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 19:02:28,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:02:28,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 19:02:28,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 19:02:28,708 INFO L87 Difference]: Start difference. First operand 9667 states and 13585 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-13 19:02:30,846 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:02:33,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:02:44,924 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:02:49,407 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:02:50,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 19:02:50,118 INFO L93 Difference]: Finished difference Result 20647 states and 29375 transitions. [2021-11-13 19:02:50,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 19:02:50,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 196 [2021-11-13 19:02:50,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 19:02:50,161 INFO L225 Difference]: With dead ends: 20647 [2021-11-13 19:02:50,161 INFO L226 Difference]: Without dead ends: 10999 [2021-11-13 19:02:50,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-13 19:02:50,199 INFO L933 BasicCegarLoop]: 4510 mSDtfsCounter, 3755 mSDsluCounter, 6071 mSDsCounter, 0 mSdLazyCounter, 4513 mSolverCounterSat, 3498 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17609.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4064 SdHoareTripleChecker+Valid, 10581 SdHoareTripleChecker+Invalid, 8013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 80.91ms SdHoareTripleChecker+Time, 3498 IncrementalHoareTripleChecker+Valid, 4513 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20048.96ms IncrementalHoareTripleChecker+Time [2021-11-13 19:02:50,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4064 Valid, 10581 Invalid, 8013 Unknown, 0 Unchecked, 80.91ms Time], IncrementalHoareTripleChecker [3498 Valid, 4513 Invalid, 2 Unknown, 0 Unchecked, 20048.96ms Time] [2021-11-13 19:02:50,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10999 states. [2021-11-13 19:02:51,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10999 to 9669. [2021-11-13 19:02:51,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9669 states, 6371 states have (on average 1.263380944906608) internal successors, (8049), 6571 states have internal predecessors, (8049), 2668 states have call successors, (2668), 605 states have call predecessors, (2668), 627 states have return successors, (2870), 2630 states have call predecessors, (2870), 2665 states have call successors, (2870) [2021-11-13 19:02:51,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9669 states to 9669 states and 13587 transitions. [2021-11-13 19:02:51,086 INFO L78 Accepts]: Start accepts. Automaton has 9669 states and 13587 transitions. Word has length 196 [2021-11-13 19:02:51,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 19:02:51,087 INFO L470 AbstractCegarLoop]: Abstraction has 9669 states and 13587 transitions. [2021-11-13 19:02:51,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-13 19:02:51,088 INFO L276 IsEmpty]: Start isEmpty. Operand 9669 states and 13587 transitions. [2021-11-13 19:02:51,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-13 19:02:51,092 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 19:02:51,092 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 19:02:51,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-13 19:02:51,093 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 19:02:51,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:02:51,093 INFO L85 PathProgramCache]: Analyzing trace with hash 885463104, now seen corresponding path program 1 times [2021-11-13 19:02:51,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:02:51,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898021349] [2021-11-13 19:02:51,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:02:51,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:02:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:02:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 19:02:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 19:02:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:02:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:02:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:02:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 19:02:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:02:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:02:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:02:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 19:02:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:02:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:02:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:02:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 19:02:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-13 19:02:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:02:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 19:02:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 19:02:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 19:02:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-13 19:02:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 19:02:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 19:02:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 19:02:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-13 19:02:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-13 19:02:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 19:02:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 19:02:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-13 19:02:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:02:51,800 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-13 19:02:51,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:02:51,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898021349] [2021-11-13 19:02:51,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898021349] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 19:02:51,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 19:02:51,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 19:02:51,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486301716] [2021-11-13 19:02:51,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:02:51,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 19:02:51,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:02:51,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 19:02:51,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 19:02:51,803 INFO L87 Difference]: Start difference. First operand 9669 states and 13587 transitions. Second operand has 7 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-13 19:02:53,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:02:56,078 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:02:58,161 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:03:23,998 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:03:25,366 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:03:27,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:03:28,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 19:03:28,763 INFO L93 Difference]: Finished difference Result 11046 states and 15864 transitions. [2021-11-13 19:03:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 19:03:28,764 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 197 [2021-11-13 19:03:28,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 19:03:28,814 INFO L225 Difference]: With dead ends: 11046 [2021-11-13 19:03:28,814 INFO L226 Difference]: Without dead ends: 11044 [2021-11-13 19:03:28,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-11-13 19:03:28,824 INFO L933 BasicCegarLoop]: 4560 mSDtfsCounter, 7930 mSDsluCounter, 10667 mSDsCounter, 0 mSdLazyCounter, 11294 mSolverCounterSat, 6506 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31221.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8240 SdHoareTripleChecker+Valid, 15227 SdHoareTripleChecker+Invalid, 17804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 145.35ms SdHoareTripleChecker+Time, 6506 IncrementalHoareTripleChecker+Valid, 11294 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35516.78ms IncrementalHoareTripleChecker+Time [2021-11-13 19:03:28,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8240 Valid, 15227 Invalid, 17804 Unknown, 0 Unchecked, 145.35ms Time], IncrementalHoareTripleChecker [6506 Valid, 11294 Invalid, 4 Unknown, 0 Unchecked, 35516.78ms Time] [2021-11-13 19:03:28,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11044 states. [2021-11-13 19:03:29,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11044 to 9683. [2021-11-13 19:03:29,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9683 states, 6381 states have (on average 1.2629681868045761) internal successors, (8059), 6581 states have internal predecessors, (8059), 2668 states have call successors, (2668), 607 states have call predecessors, (2668), 631 states have return successors, (2870), 2632 states have call predecessors, (2870), 2665 states have call successors, (2870) [2021-11-13 19:03:29,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9683 states to 9683 states and 13597 transitions. [2021-11-13 19:03:29,678 INFO L78 Accepts]: Start accepts. Automaton has 9683 states and 13597 transitions. Word has length 197 [2021-11-13 19:03:29,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 19:03:29,679 INFO L470 AbstractCegarLoop]: Abstraction has 9683 states and 13597 transitions. [2021-11-13 19:03:29,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-13 19:03:29,679 INFO L276 IsEmpty]: Start isEmpty. Operand 9683 states and 13597 transitions. [2021-11-13 19:03:29,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-13 19:03:29,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 19:03:29,685 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 19:03:29,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-13 19:03:29,686 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 19:03:29,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:03:29,686 INFO L85 PathProgramCache]: Analyzing trace with hash 2117997395, now seen corresponding path program 1 times [2021-11-13 19:03:29,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:03:29,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084420043] [2021-11-13 19:03:29,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:03:29,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:03:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:03:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 19:03:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 19:03:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:03:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:03:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:03:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 19:03:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:03:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:03:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:03:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 19:03:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:03:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:03:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:03:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 19:03:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-13 19:03:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:03:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 19:03:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 19:03:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 19:03:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 19:03:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 19:03:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-13 19:03:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-13 19:03:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-13 19:03:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 19:03:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 19:03:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 19:03:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-13 19:03:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:03:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 19:03:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 19:03:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 19:03:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:35,876 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2021-11-13 19:03:35,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:03:35,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084420043] [2021-11-13 19:03:35,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084420043] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:03:35,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511976890] [2021-11-13 19:03:35,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:03:35,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:03:35,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 19:03:35,883 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:03:35,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 19:03:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:37,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 4030 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-13 19:03:37,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:03:38,736 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2021-11-13 19:03:38,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 19:03:38,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511976890] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 19:03:38,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 19:03:38,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 17 [2021-11-13 19:03:38,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896256699] [2021-11-13 19:03:38,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:03:38,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 19:03:38,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:03:38,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 19:03:38,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2021-11-13 19:03:38,739 INFO L87 Difference]: Start difference. First operand 9683 states and 13597 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2021-11-13 19:03:41,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 19:03:41,780 INFO L93 Difference]: Finished difference Result 21739 states and 30821 transitions. [2021-11-13 19:03:41,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 19:03:41,781 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 208 [2021-11-13 19:03:41,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 19:03:41,834 INFO L225 Difference]: With dead ends: 21739 [2021-11-13 19:03:41,834 INFO L226 Difference]: Without dead ends: 12073 [2021-11-13 19:03:41,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 268 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=104, Invalid=598, Unknown=0, NotChecked=0, Total=702 [2021-11-13 19:03:41,874 INFO L933 BasicCegarLoop]: 6330 mSDtfsCounter, 2089 mSDsluCounter, 60281 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 698 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1262.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2310 SdHoareTripleChecker+Valid, 66611 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 85.89ms SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1553.38ms IncrementalHoareTripleChecker+Time [2021-11-13 19:03:41,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2310 Valid, 66611 Invalid, 1399 Unknown, 0 Unchecked, 85.89ms Time], IncrementalHoareTripleChecker [698 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 1553.38ms Time] [2021-11-13 19:03:41,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12073 states. [2021-11-13 19:03:42,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12073 to 9699. [2021-11-13 19:03:42,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9699 states, 6393 states have (on average 1.262474581573596) internal successors, (8071), 6593 states have internal predecessors, (8071), 2672 states have call successors, (2672), 607 states have call predecessors, (2672), 631 states have return successors, (2874), 2636 states have call predecessors, (2874), 2669 states have call successors, (2874) [2021-11-13 19:03:42,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9699 states to 9699 states and 13617 transitions. [2021-11-13 19:03:42,808 INFO L78 Accepts]: Start accepts. Automaton has 9699 states and 13617 transitions. Word has length 208 [2021-11-13 19:03:42,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 19:03:42,809 INFO L470 AbstractCegarLoop]: Abstraction has 9699 states and 13617 transitions. [2021-11-13 19:03:42,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2021-11-13 19:03:42,809 INFO L276 IsEmpty]: Start isEmpty. Operand 9699 states and 13617 transitions. [2021-11-13 19:03:42,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2021-11-13 19:03:42,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 19:03:42,815 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 8, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 19:03:42,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 19:03:43,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfc3851-d07b-43fa-a2a5-6f2c68e36c0d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-13 19:03:43,041 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 19:03:43,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:03:43,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1038536204, now seen corresponding path program 1 times [2021-11-13 19:03:43,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:03:43,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763447481] [2021-11-13 19:03:43,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:03:43,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:03:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:03:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 19:03:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 19:03:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:03:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:03:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:03:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 19:03:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:03:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:03:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:03:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 19:03:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:03:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:03:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:03:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 19:03:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-13 19:03:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:03:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 19:03:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 19:03:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 19:03:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 19:03:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-13 19:03:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-13 19:03:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 19:03:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-13 19:03:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-13 19:03:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-13 19:03:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-13 19:03:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-13 19:03:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-13 19:03:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-13 19:03:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-13 19:03:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-13 19:03:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-13 19:03:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-13 19:03:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-13 19:03:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-13 19:03:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:03:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-13 19:03:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:03:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:43,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:03:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 19:03:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-13 19:03:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-13 19:03:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-13 19:03:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-13 19:03:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-11-13 19:03:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:03:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:03:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 19:03:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 19:03:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-11-13 19:03:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-11-13 19:03:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-13 19:03:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-13 19:03:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-13 19:03:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-11-13 19:03:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:03:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 19:03:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 19:03:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 19:03:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-13 19:03:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 19:03:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 19:03:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 19:03:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 19:03:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 19:03:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-13 19:03:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-13 19:03:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 19:03:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-13 19:03:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 19:03:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 19:03:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:44,254 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 826 trivial. 0 not checked. [2021-11-13 19:03:44,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:03:44,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763447481] [2021-11-13 19:03:44,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763447481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 19:03:44,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 19:03:44,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 19:03:44,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775390337] [2021-11-13 19:03:44,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:03:44,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 19:03:44,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:03:44,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 19:03:44,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 19:03:44,258 INFO L87 Difference]: Start difference. First operand 9699 states and 13617 transitions. Second operand has 6 states, 6 states have (on average 32.0) internal successors, (192), 3 states have internal predecessors, (192), 4 states have call successors, (70), 5 states have call predecessors, (70), 1 states have return successors, (66), 3 states have call predecessors, (66), 4 states have call successors, (66) [2021-11-13 19:03:46,426 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:03:48,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []