./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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-0f8a17c [2021-11-17 11:57:07,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 11:57:07,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 11:57:07,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 11:57:07,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 11:57:07,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 11:57:07,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 11:57:07,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 11:57:07,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 11:57:07,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 11:57:07,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 11:57:07,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 11:57:07,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 11:57:07,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 11:57:07,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 11:57:07,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 11:57:07,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 11:57:07,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 11:57:07,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 11:57:07,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 11:57:07,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 11:57:07,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 11:57:07,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 11:57:07,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 11:57:07,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 11:57:07,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 11:57:07,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 11:57:07,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 11:57:07,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 11:57:07,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 11:57:07,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 11:57:07,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 11:57:07,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 11:57:07,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 11:57:07,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 11:57:07,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 11:57:07,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 11:57:07,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 11:57:07,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 11:57:07,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 11:57:07,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 11:57:07,240 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 11:57:07,257 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 11:57:07,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 11:57:07,259 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 11:57:07,259 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 11:57:07,260 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 11:57:07,260 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 11:57:07,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 11:57:07,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 11:57:07,261 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 11:57:07,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 11:57:07,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 11:57:07,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 11:57:07,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 11:57:07,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 11:57:07,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 11:57:07,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 11:57:07,263 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 11:57:07,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 11:57:07,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 11:57:07,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 11:57:07,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 11:57:07,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 11:57:07,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 11:57:07,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 11:57:07,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 11:57:07,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 11:57:07,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 11:57:07,266 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 11:57:07,266 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 11:57:07,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 11:57:07,266 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 11:57:07,267 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 463dbca1530ea0e57c159e9405d50f794488f63283b3e27908f44b92b1921358 [2021-11-17 11:57:07,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 11:57:07,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 11:57:07,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 11:57:07,453 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 11:57:07,453 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 11:57:07,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-17 11:57:07,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36361537b/228a608f41a94096a16115b34bbe179b/FLAGc6552ed81 [2021-11-17 11:57:08,118 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 11:57:08,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-17 11:57:08,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36361537b/228a608f41a94096a16115b34bbe179b/FLAGc6552ed81 [2021-11-17 11:57:08,257 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36361537b/228a608f41a94096a16115b34bbe179b [2021-11-17 11:57:08,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 11:57:08,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 11:57:08,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 11:57:08,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 11:57:08,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 11:57:08,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:57:08" (1/1) ... [2021-11-17 11:57:08,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6065f696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:57:08, skipping insertion in model container [2021-11-17 11:57:08,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:57:08" (1/1) ... [2021-11-17 11:57:08,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 11:57:08,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 11:57:11,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487146,487159] [2021-11-17 11:57:11,676 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487315,487328] [2021-11-17 11:57:11,676 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487482,487495] [2021-11-17 11:57:11,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487650,487663] [2021-11-17 11:57:11,696 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 11:57:11,727 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 11:57:12,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487146,487159] [2021-11-17 11:57:12,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487315,487328] [2021-11-17 11:57:12,022 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487482,487495] [2021-11-17 11:57:12,022 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487650,487663] [2021-11-17 11:57:12,029 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 11:57:12,240 INFO L208 MainTranslator]: Completed translation [2021-11-17 11:57:12,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:57:12 WrapperNode [2021-11-17 11:57:12,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 11:57:12,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 11:57:12,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 11:57:12,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 11:57:12,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:57:12" (1/1) ... [2021-11-17 11:57:12,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:57:12" (1/1) ... [2021-11-17 11:57:12,580 INFO L137 Inliner]: procedures = 676, calls = 4210, calls flagged for inlining = 325, calls inlined = 302, statements flattened = 10110 [2021-11-17 11:57:12,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 11:57:12,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 11:57:12,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 11:57:12,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 11:57:12,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:57:12" (1/1) ... [2021-11-17 11:57:12,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:57:12" (1/1) ... [2021-11-17 11:57:12,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:57:12" (1/1) ... [2021-11-17 11:57:12,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:57:12" (1/1) ... [2021-11-17 11:57:12,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:57:12" (1/1) ... [2021-11-17 11:57:12,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:57:12" (1/1) ... [2021-11-17 11:57:12,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:57:12" (1/1) ... [2021-11-17 11:57:12,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 11:57:12,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 11:57:12,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 11:57:12,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 11:57:12,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:57:12" (1/1) ... [2021-11-17 11:57:12,901 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 11:57:12,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 11:57:12,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 11:57:12,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 11:57:12,961 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-17 11:57:12,961 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-17 11:57:12,961 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_read [2021-11-17 11:57:12,961 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_read [2021-11-17 11:57:12,961 INFO L130 BoogieDeclarations]: Found specification of procedure cas_pcs_link_check [2021-11-17 11:57:12,961 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_pcs_link_check [2021-11-17 11:57:12,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_121 [2021-11-17 11:57:12,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_121 [2021-11-17 11:57:12,962 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 11:57:12,962 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 11:57:12,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 11:57:12,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 11:57:12,962 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-17 11:57:12,962 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-17 11:57:12,962 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-17 11:57:12,963 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-17 11:57:12,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 11:57:12,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 11:57:12,963 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mii_link_check [2021-11-17 11:57:12,963 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mii_link_check [2021-11-17 11:57:12,963 INFO L130 BoogieDeclarations]: Found specification of procedure cas_calc_tabort [2021-11-17 11:57:12,963 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_calc_tabort [2021-11-17 11:57:12,963 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-17 11:57:12,963 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-17 11:57:12,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2021-11-17 11:57:12,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2021-11-17 11:57:12,964 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-17 11:57:12,964 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-17 11:57:12,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 11:57:12,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 11:57:12,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_147 [2021-11-17 11:57:12,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_147 [2021-11-17 11:57:12,964 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-17 11:57:12,965 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-17 11:57:12,965 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 11:57:12,965 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 11:57:12,965 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-17 11:57:12,965 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-17 11:57:12,965 INFO L130 BoogieDeclarations]: Found specification of procedure cas_lock_tx [2021-11-17 11:57:12,965 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_lock_tx [2021-11-17 11:57:12,965 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-17 11:57:12,965 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-17 11:57:12,966 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 11:57:12,966 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 11:57:12,966 INFO L130 BoogieDeclarations]: Found specification of procedure cas_disable_irq [2021-11-17 11:57:12,966 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_disable_irq [2021-11-17 11:57:12,966 INFO L130 BoogieDeclarations]: Found specification of procedure cas_free_rxds [2021-11-17 11:57:12,966 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_free_rxds [2021-11-17 11:57:12,966 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2021-11-17 11:57:12,966 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2021-11-17 11:57:12,966 INFO L130 BoogieDeclarations]: Found specification of procedure cas_open [2021-11-17 11:57:12,967 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_open [2021-11-17 11:57:12,967 INFO L130 BoogieDeclarations]: Found specification of procedure cas_interrupt [2021-11-17 11:57:12,967 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_interrupt [2021-11-17 11:57:12,967 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_tiny_free [2021-11-17 11:57:12,967 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_tiny_free [2021-11-17 11:57:12,967 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-17 11:57:12,967 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-17 11:57:12,967 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_map [2021-11-17 11:57:12,968 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_map [2021-11-17 11:57:12,968 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_init [2021-11-17 11:57:12,968 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_init [2021-11-17 11:57:12,968 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-17 11:57:12,968 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-17 11:57:12,968 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2021-11-17 11:57:12,968 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2021-11-17 11:57:12,968 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 11:57:12,968 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 11:57:12,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 11:57:12,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 11:57:12,969 INFO L130 BoogieDeclarations]: Found specification of procedure cas_enable_irq [2021-11-17 11:57:12,969 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_enable_irq [2021-11-17 11:57:12,969 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 11:57:12,969 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 11:57:12,969 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-17 11:57:12,969 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-17 11:57:12,969 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_dequeue [2021-11-17 11:57:12,970 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_dequeue [2021-11-17 11:57:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-17 11:57:12,970 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-17 11:57:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 11:57:12,970 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 11:57:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 11:57:12,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 11:57:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 11:57:12,970 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 11:57:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-17 11:57:12,971 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-17 11:57:12,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 11:57:12,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_108 [2021-11-17 11:57:12,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_108 [2021-11-17 11:57:12,971 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-17 11:57:12,971 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-17 11:57:12,971 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_multicast [2021-11-17 11:57:12,971 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_multicast [2021-11-17 11:57:12,971 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-17 11:57:12,972 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-17 11:57:12,972 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-17 11:57:12,972 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-17 11:57:12,972 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_free [2021-11-17 11:57:12,972 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_free [2021-11-17 11:57:12,972 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_timeout [2021-11-17 11:57:12,972 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_timeout [2021-11-17 11:57:12,972 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 11:57:12,972 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 11:57:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_pcs_link_mode [2021-11-17 11:57:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_pcs_link_mode [2021-11-17 11:57:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 11:57:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 11:57:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 11:57:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure cas_close [2021-11-17 11:57:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_close [2021-11-17 11:57:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_swap [2021-11-17 11:57:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_swap [2021-11-17 11:57:12,974 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 11:57:12,974 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 11:57:12,974 INFO L130 BoogieDeclarations]: Found specification of procedure cas_netpoll [2021-11-17 11:57:12,974 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_netpoll [2021-11-17 11:57:12,974 INFO L130 BoogieDeclarations]: Found specification of procedure cas_hard_reset [2021-11-17 11:57:12,974 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_hard_reset [2021-11-17 11:57:12,974 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-17 11:57:12,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-17 11:57:12,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 11:57:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 11:57:12,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 11:57:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure cas_rxc_init [2021-11-17 11:57:12,975 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_rxc_init [2021-11-17 11:57:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 11:57:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 11:57:12,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 11:57:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clear_mac_err [2021-11-17 11:57:12,975 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clear_mac_err [2021-11-17 11:57:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-17 11:57:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-17 11:57:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 11:57:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 11:57:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 11:57:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 11:57:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-17 11:57:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-17 11:57:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2021-11-17 11:57:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2021-11-17 11:57:12,977 INFO L130 BoogieDeclarations]: Found specification of procedure cas_remove_one [2021-11-17 11:57:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_remove_one [2021-11-17 11:57:12,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_NOT_ARG_SIGN [2021-11-17 11:57:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_NOT_ARG_SIGN [2021-11-17 11:57:12,977 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 11:57:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 11:57:12,977 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 11:57:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 11:57:12,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 11:57:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 11:57:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-17 11:57:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-17 11:57:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 11:57:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-17 11:57:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-17 11:57:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 11:57:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-11-17 11:57:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-11-17 11:57:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 11:57:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 11:57:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 11:57:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 11:57:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 11:57:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 11:57:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 11:57:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 11:57:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_link_modes [2021-11-17 11:57:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_link_modes [2021-11-17 11:57:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure cas_link_timer [2021-11-17 11:57:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_link_timer [2021-11-17 11:57:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_mii_link_mode [2021-11-17 11:57:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_mii_link_mode [2021-11-17 11:57:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2021-11-17 11:57:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2021-11-17 11:57:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-17 11:57:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-17 11:57:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-17 11:57:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-17 11:57:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-17 11:57:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-17 11:57:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2021-11-17 11:57:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2021-11-17 11:57:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-17 11:57:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-17 11:57:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 11:57:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 11:57:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-17 11:57:12,982 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-17 11:57:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 11:57:12,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 11:57:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure csum_unfold [2021-11-17 11:57:12,982 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_unfold [2021-11-17 11:57:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-17 11:57:12,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-17 11:57:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-17 11:57:12,982 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-17 11:57:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure cas_entropy_gather [2021-11-17 11:57:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_entropy_gather [2021-11-17 11:57:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure cas_resume [2021-11-17 11:57:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_resume [2021-11-17 11:57:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 11:57:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 11:57:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_alloc [2021-11-17 11:57:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_alloc [2021-11-17 11:57:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 11:57:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 11:57:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 11:57:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 11:57:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 11:57:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 11:57:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 11:57:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 11:57:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mif_poll [2021-11-17 11:57:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mif_poll [2021-11-17 11:57:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-17 11:57:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-17 11:57:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure cas_unlock_tx [2021-11-17 11:57:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_unlock_tx [2021-11-17 11:57:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 11:57:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 11:57:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_133 [2021-11-17 11:57:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_133 [2021-11-17 11:57:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice [2021-11-17 11:57:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice [2021-11-17 11:57:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_135 [2021-11-17 11:57:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_135 [2021-11-17 11:57:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-17 11:57:12,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-17 11:57:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2021-11-17 11:57:12,986 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2021-11-17 11:57:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-17 11:57:12,986 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-17 11:57:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 11:57:12,986 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 11:57:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 11:57:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 11:57:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-17 11:57:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-17 11:57:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_buf [2021-11-17 11:57:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_buf [2021-11-17 11:57:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mac_reset [2021-11-17 11:57:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mac_reset [2021-11-17 11:57:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_cas [2021-11-17 11:57:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_cas [2021-11-17 11:57:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 11:57:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 11:57:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 11:57:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_set_page [2021-11-17 11:57:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_set_page [2021-11-17 11:57:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 11:57:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_regs_len [2021-11-17 11:57:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_regs_len [2021-11-17 11:57:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure cas_reset [2021-11-17 11:57:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_reset [2021-11-17 11:57:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2021-11-17 11:57:12,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2021-11-17 11:57:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_NOT_ARG_SIGN [2021-11-17 11:57:12,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_NOT_ARG_SIGN [2021-11-17 11:57:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-17 11:57:12,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-17 11:57:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_page [2021-11-17 11:57:12,989 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_page [2021-11-17 11:57:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 11:57:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-17 11:57:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-17 11:57:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure cas_nway_reset [2021-11-17 11:57:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_nway_reset [2021-11-17 11:57:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-17 11:57:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-17 11:57:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 11:57:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 11:57:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 11:57:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 11:57:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure cas_setup_multicast [2021-11-17 11:57:12,991 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_setup_multicast [2021-11-17 11:57:12,991 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_powerdown [2021-11-17 11:57:12,991 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_powerdown [2021-11-17 11:57:12,991 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2021-11-17 11:57:12,991 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2021-11-17 11:57:12,991 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-17 11:57:12,991 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-17 11:57:12,991 INFO L130 BoogieDeclarations]: Found specification of procedure cas_vpd_match [2021-11-17 11:57:12,991 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_vpd_match [2021-11-17 11:57:12,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_83 [2021-11-17 11:57:12,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_83 [2021-11-17 11:57:12,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2021-11-17 11:57:12,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2021-11-17 11:57:12,992 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-17 11:57:12,992 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-17 11:57:12,992 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-11-17 11:57:12,992 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-11-17 11:57:12,992 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-17 11:57:12,992 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-17 11:57:12,993 INFO L130 BoogieDeclarations]: Found specification of procedure page_count [2021-11-17 11:57:12,993 INFO L138 BoogieDeclarations]: Found implementation of procedure page_count [2021-11-17 11:57:12,993 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 11:57:12,993 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 11:57:12,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2021-11-17 11:57:12,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2021-11-17 11:57:12,993 INFO L130 BoogieDeclarations]: Found specification of procedure cas_shutdown [2021-11-17 11:57:12,993 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_shutdown [2021-11-17 11:57:12,993 INFO L130 BoogieDeclarations]: Found specification of procedure cas_begin_auto_negotiation [2021-11-17 11:57:12,993 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_begin_auto_negotiation [2021-11-17 11:57:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-17 11:57:12,994 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-17 11:57:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 11:57:12,994 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 11:57:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure cas_write_txd [2021-11-17 11:57:12,994 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_write_txd [2021-11-17 11:57:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 11:57:12,994 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 11:57:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_ref [2021-11-17 11:57:12,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_ref [2021-11-17 11:57:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 11:57:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 11:57:12,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 11:57:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2021-11-17 11:57:12,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2021-11-17 11:57:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_84 [2021-11-17 11:57:12,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_84 [2021-11-17 11:57:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_79 [2021-11-17 11:57:12,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_79 [2021-11-17 11:57:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-17 11:57:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-17 11:57:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure cas_init_hw [2021-11-17 11:57:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_init_hw [2021-11-17 11:57:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clean_rings [2021-11-17 11:57:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clean_rings [2021-11-17 11:57:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_free [2021-11-17 11:57:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_free [2021-11-17 11:57:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-17 11:57:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-17 11:57:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_write [2021-11-17 11:57:12,997 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_write [2021-11-17 11:57:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 11:57:12,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 11:57:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-17 11:57:12,997 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-17 11:57:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-17 11:57:12,997 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-17 11:57:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_recover [2021-11-17 11:57:12,997 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_recover [2021-11-17 11:57:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-11-17 11:57:12,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-11-17 11:57:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 11:57:12,998 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 11:57:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_stats [2021-11-17 11:57:12,998 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_stats [2021-11-17 11:57:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-17 11:57:12,998 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-17 11:57:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2021-11-17 11:57:12,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2021-11-17 11:57:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 11:57:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 11:57:12,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 11:57:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-17 11:57:12,999 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-17 11:57:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-17 11:57:12,999 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-17 11:57:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_107 [2021-11-17 11:57:12,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_107 [2021-11-17 11:57:13,943 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 11:57:13,947 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 11:57:14,151 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 11:59:51,843 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 11:59:51,872 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 11:59:51,873 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-17 11:59:51,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:59:51 BoogieIcfgContainer [2021-11-17 11:59:51,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 11:59:51,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 11:59:51,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 11:59:51,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 11:59:51,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:57:08" (1/3) ... [2021-11-17 11:59:51,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ffe988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:59:51, skipping insertion in model container [2021-11-17 11:59:51,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:57:12" (2/3) ... [2021-11-17 11:59:51,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ffe988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:59:51, skipping insertion in model container [2021-11-17 11:59:51,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:59:51" (3/3) ... [2021-11-17 11:59:51,888 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-17 11:59:51,891 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 11:59:51,892 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-17 11:59:51,933 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 11:59:51,939 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 [2021-11-17 11:59:51,940 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-17 11:59:52,001 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) [2021-11-17 11:59:52,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-17 11:59:52,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:59:52,007 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] [2021-11-17 11:59:52,007 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)] === [2021-11-17 11:59:52,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:59:52,013 INFO L85 PathProgramCache]: Analyzing trace with hash 488379236, now seen corresponding path program 1 times [2021-11-17 11:59:52,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:59:52,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203629682] [2021-11-17 11:59:52,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:59:52,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:59:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:52,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:59:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:52,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 11:59:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:52,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 11:59:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:52,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:59:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:52,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 11:59:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:52,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 11:59:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:52,814 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-17 11:59:52,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:59:52,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203629682] [2021-11-17 11:59:52,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203629682] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:59:52,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:59:52,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 11:59:52,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892599598] [2021-11-17 11:59:52,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:59:52,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 11:59:52,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:59:52,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 11:59:52,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:59:52,841 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) [2021-11-17 11:59:53,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:59:53,390 INFO L93 Difference]: Finished difference Result 10186 states and 15111 transitions. [2021-11-17 11:59:53,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 11:59:53,394 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 [2021-11-17 11:59:53,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:59:53,455 INFO L225 Difference]: With dead ends: 10186 [2021-11-17 11:59:53,455 INFO L226 Difference]: Without dead ends: 6583 [2021-11-17 11:59:53,487 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 [2021-11-17 11:59:53,489 INFO L933 BasicCegarLoop]: 6155 mSDtfsCounter, 4881 mSDsluCounter, 16827 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4900 SdHoareTripleChecker+Valid, 22982 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 11:59:53,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4900 Valid, 22982 Invalid, 31 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 11:59:53,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6583 states. [2021-11-17 11:59:53,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6583 to 6575. [2021-11-17 11:59:53,794 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) [2021-11-17 11:59:53,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6575 states to 6575 states and 9424 transitions. [2021-11-17 11:59:53,844 INFO L78 Accepts]: Start accepts. Automaton has 6575 states and 9424 transitions. Word has length 50 [2021-11-17 11:59:53,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:59:53,845 INFO L470 AbstractCegarLoop]: Abstraction has 6575 states and 9424 transitions. [2021-11-17 11:59:53,845 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) [2021-11-17 11:59:53,845 INFO L276 IsEmpty]: Start isEmpty. Operand 6575 states and 9424 transitions. [2021-11-17 11:59:53,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-17 11:59:53,847 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:59:53,860 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] [2021-11-17 11:59:53,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 11:59:53,864 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)] === [2021-11-17 11:59:53,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:59:53,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1966173741, now seen corresponding path program 1 times [2021-11-17 11:59:53,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:59:53,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33519007] [2021-11-17 11:59:53,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:59:53,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:59:53,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:54,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:59:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:54,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 11:59:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:54,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 11:59:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:54,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:59:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:54,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 11:59:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:54,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 11:59:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:54,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 11:59:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:54,248 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-17 11:59:54,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:59:54,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33519007] [2021-11-17 11:59:54,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33519007] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:59:54,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:59:54,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 11:59:54,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068814955] [2021-11-17 11:59:54,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:59:54,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 11:59:54,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:59:54,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 11:59:54,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:59:54,251 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) [2021-11-17 11:59:54,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:59:54,695 INFO L93 Difference]: Finished difference Result 6585 states and 9433 transitions. [2021-11-17 11:59:54,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 11:59:54,697 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 [2021-11-17 11:59:54,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:59:54,731 INFO L225 Difference]: With dead ends: 6585 [2021-11-17 11:59:54,732 INFO L226 Difference]: Without dead ends: 6583 [2021-11-17 11:59:54,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 11:59:54,738 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5079 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 11:59:54,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5079 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 11:59:54,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6583 states. [2021-11-17 11:59:54,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6583 to 6583. [2021-11-17 11:59:54,956 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) [2021-11-17 11:59:54,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6583 states to 6583 states and 9430 transitions. [2021-11-17 11:59:54,994 INFO L78 Accepts]: Start accepts. Automaton has 6583 states and 9430 transitions. Word has length 55 [2021-11-17 11:59:54,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:59:54,994 INFO L470 AbstractCegarLoop]: Abstraction has 6583 states and 9430 transitions. [2021-11-17 11:59:54,995 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) [2021-11-17 11:59:54,995 INFO L276 IsEmpty]: Start isEmpty. Operand 6583 states and 9430 transitions. [2021-11-17 11:59:54,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-17 11:59:54,996 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:59:54,996 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] [2021-11-17 11:59:54,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 11:59:54,997 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)] === [2021-11-17 11:59:54,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:59:54,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1669212028, now seen corresponding path program 1 times [2021-11-17 11:59:54,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:59:54,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174372503] [2021-11-17 11:59:54,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:59:54,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:59:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:55,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:59:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:55,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 11:59:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:55,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 11:59:55,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:55,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:59:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:55,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 11:59:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:55,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 11:59:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:55,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 11:59:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:55,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 11:59:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:55,387 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-17 11:59:55,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:59:55,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174372503] [2021-11-17 11:59:55,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174372503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:59:55,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:59:55,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 11:59:55,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365282562] [2021-11-17 11:59:55,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:59:55,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 11:59:55,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:59:55,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 11:59:55,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:59:55,391 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) [2021-11-17 11:59:55,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:59:55,785 INFO L93 Difference]: Finished difference Result 6593 states and 9439 transitions. [2021-11-17 11:59:55,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 11:59:55,786 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 [2021-11-17 11:59:55,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:59:55,820 INFO L225 Difference]: With dead ends: 6593 [2021-11-17 11:59:55,820 INFO L226 Difference]: Without dead ends: 6591 [2021-11-17 11:59:55,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 11:59:55,830 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5078 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 11:59:55,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5078 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 11:59:55,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6591 states. [2021-11-17 11:59:56,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6591 to 6591. [2021-11-17 11:59:56,086 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) [2021-11-17 11:59:56,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6591 states to 6591 states and 9436 transitions. [2021-11-17 11:59:56,124 INFO L78 Accepts]: Start accepts. Automaton has 6591 states and 9436 transitions. Word has length 60 [2021-11-17 11:59:56,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:59:56,124 INFO L470 AbstractCegarLoop]: Abstraction has 6591 states and 9436 transitions. [2021-11-17 11:59:56,125 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) [2021-11-17 11:59:56,125 INFO L276 IsEmpty]: Start isEmpty. Operand 6591 states and 9436 transitions. [2021-11-17 11:59:56,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-17 11:59:56,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:59:56,130 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] [2021-11-17 11:59:56,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 11:59:56,131 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)] === [2021-11-17 11:59:56,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:59:56,131 INFO L85 PathProgramCache]: Analyzing trace with hash 63716950, now seen corresponding path program 1 times [2021-11-17 11:59:56,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:59:56,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576668960] [2021-11-17 11:59:56,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:59:56,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:59:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:56,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:59:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:56,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 11:59:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:56,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 11:59:56,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:56,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:59:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:56,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 11:59:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:56,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 11:59:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:56,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-17 11:59:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:56,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:59:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:56,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 11:59:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:56,530 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-17 11:59:56,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:59:56,531 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576668960] [2021-11-17 11:59:56,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576668960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:59:56,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:59:56,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 11:59:56,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221384789] [2021-11-17 11:59:56,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:59:56,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 11:59:56,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:59:56,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 11:59:56,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:59:56,533 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) [2021-11-17 11:59:56,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:59:56,922 INFO L93 Difference]: Finished difference Result 6601 states and 9445 transitions. [2021-11-17 11:59:56,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 11:59:56,923 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 [2021-11-17 11:59:56,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:59:56,975 INFO L225 Difference]: With dead ends: 6601 [2021-11-17 11:59:56,976 INFO L226 Difference]: Without dead ends: 6599 [2021-11-17 11:59:56,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 11:59:56,986 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5055 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5070 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 11:59:56,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5070 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 11:59:56,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6599 states. [2021-11-17 11:59:57,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6599 to 6599. [2021-11-17 11:59:57,296 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) [2021-11-17 11:59:57,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6599 states to 6599 states and 9442 transitions. [2021-11-17 11:59:57,330 INFO L78 Accepts]: Start accepts. Automaton has 6599 states and 9442 transitions. Word has length 72 [2021-11-17 11:59:57,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:59:57,332 INFO L470 AbstractCegarLoop]: Abstraction has 6599 states and 9442 transitions. [2021-11-17 11:59:57,332 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) [2021-11-17 11:59:57,332 INFO L276 IsEmpty]: Start isEmpty. Operand 6599 states and 9442 transitions. [2021-11-17 11:59:57,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-17 11:59:57,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:59:57,333 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] [2021-11-17 11:59:57,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 11:59:57,334 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)] === [2021-11-17 11:59:57,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:59:57,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1640143452, now seen corresponding path program 1 times [2021-11-17 11:59:57,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:59:57,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857376972] [2021-11-17 11:59:57,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:59:57,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:59:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:57,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:59:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:57,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 11:59:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:57,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 11:59:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:57,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:59:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:57,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 11:59:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:57,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 11:59:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:57,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 11:59:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:57,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 11:59:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:57,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 11:59:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:57,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 11:59:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:57,679 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-17 11:59:57,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:59:57,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857376972] [2021-11-17 11:59:57,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857376972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:59:57,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:59:57,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 11:59:57,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108971810] [2021-11-17 11:59:57,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:59:57,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 11:59:57,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:59:57,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 11:59:57,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:59:57,681 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) [2021-11-17 11:59:58,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:59:58,063 INFO L93 Difference]: Finished difference Result 6609 states and 9451 transitions. [2021-11-17 11:59:58,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 11:59:58,064 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 [2021-11-17 11:59:58,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:59:58,092 INFO L225 Difference]: With dead ends: 6609 [2021-11-17 11:59:58,093 INFO L226 Difference]: Without dead ends: 6607 [2021-11-17 11:59:58,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 11:59:58,101 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5076 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 11:59:58,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5076 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 11:59:58,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6607 states. [2021-11-17 11:59:58,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6607 to 6607. [2021-11-17 11:59:58,323 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) [2021-11-17 11:59:58,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6607 states to 6607 states and 9448 transitions. [2021-11-17 11:59:58,354 INFO L78 Accepts]: Start accepts. Automaton has 6607 states and 9448 transitions. Word has length 70 [2021-11-17 11:59:58,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:59:58,355 INFO L470 AbstractCegarLoop]: Abstraction has 6607 states and 9448 transitions. [2021-11-17 11:59:58,355 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) [2021-11-17 11:59:58,355 INFO L276 IsEmpty]: Start isEmpty. Operand 6607 states and 9448 transitions. [2021-11-17 11:59:58,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-17 11:59:58,356 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:59:58,356 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] [2021-11-17 11:59:58,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 11:59:58,357 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)] === [2021-11-17 11:59:58,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:59:58,357 INFO L85 PathProgramCache]: Analyzing trace with hash -245692781, now seen corresponding path program 1 times [2021-11-17 11:59:58,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:59:58,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198956232] [2021-11-17 11:59:58,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:59:58,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:59:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:58,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:59:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:58,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 11:59:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:58,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 11:59:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:58,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:59:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:58,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 11:59:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:58,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 11:59:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:58,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 11:59:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:58,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 11:59:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:58,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 11:59:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:58,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 11:59:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:58,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 11:59:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:58,741 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-17 11:59:58,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:59:58,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198956232] [2021-11-17 11:59:58,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198956232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:59:58,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:59:58,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 11:59:58,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713225639] [2021-11-17 11:59:58,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:59:58,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 11:59:58,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:59:58,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 11:59:58,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:59:58,744 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) [2021-11-17 11:59:59,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:59:59,167 INFO L93 Difference]: Finished difference Result 6617 states and 9457 transitions. [2021-11-17 11:59:59,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 11:59:59,168 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 [2021-11-17 11:59:59,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:59:59,189 INFO L225 Difference]: With dead ends: 6617 [2021-11-17 11:59:59,189 INFO L226 Difference]: Without dead ends: 6615 [2021-11-17 11:59:59,193 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 [2021-11-17 11:59:59,194 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5075 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 11:59:59,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5075 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 11:59:59,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6615 states. [2021-11-17 11:59:59,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6615 to 6615. [2021-11-17 11:59:59,417 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) [2021-11-17 11:59:59,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6615 states to 6615 states and 9454 transitions. [2021-11-17 11:59:59,452 INFO L78 Accepts]: Start accepts. Automaton has 6615 states and 9454 transitions. Word has length 75 [2021-11-17 11:59:59,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:59:59,453 INFO L470 AbstractCegarLoop]: Abstraction has 6615 states and 9454 transitions. [2021-11-17 11:59:59,453 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) [2021-11-17 11:59:59,453 INFO L276 IsEmpty]: Start isEmpty. Operand 6615 states and 9454 transitions. [2021-11-17 11:59:59,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-17 11:59:59,454 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:59:59,455 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] [2021-11-17 11:59:59,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 11:59:59,455 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)] === [2021-11-17 11:59:59,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:59:59,456 INFO L85 PathProgramCache]: Analyzing trace with hash -340966847, now seen corresponding path program 1 times [2021-11-17 11:59:59,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:59:59,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258163470] [2021-11-17 11:59:59,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:59:59,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:59:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:59,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:59:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:59,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 11:59:59,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:59,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 11:59:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:59,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:59:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:59,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 11:59:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:59,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 11:59:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:59,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-17 11:59:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:59,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:59:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:59,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 11:59:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:59,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 11:59:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:59,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 11:59:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:59,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-17 11:59:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:59:59,822 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-17 11:59:59,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:59:59,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258163470] [2021-11-17 11:59:59,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258163470] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:59:59,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:59:59,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 11:59:59,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336758033] [2021-11-17 11:59:59,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:59:59,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 11:59:59,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:59:59,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 11:59:59,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:59:59,824 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) [2021-11-17 12:00:00,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:00:00,198 INFO L93 Difference]: Finished difference Result 6625 states and 9463 transitions. [2021-11-17 12:00:00,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 12:00:00,199 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 [2021-11-17 12:00:00,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:00:00,224 INFO L225 Difference]: With dead ends: 6625 [2021-11-17 12:00:00,225 INFO L226 Difference]: Without dead ends: 6623 [2021-11-17 12:00:00,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 12:00:00,232 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5055 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5067 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 12:00:00,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5067 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 12:00:00,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6623 states. [2021-11-17 12:00:00,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6623 to 6623. [2021-11-17 12:00:00,455 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) [2021-11-17 12:00:00,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6623 states to 6623 states and 9460 transitions. [2021-11-17 12:00:00,483 INFO L78 Accepts]: Start accepts. Automaton has 6623 states and 9460 transitions. Word has length 87 [2021-11-17 12:00:00,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:00:00,484 INFO L470 AbstractCegarLoop]: Abstraction has 6623 states and 9460 transitions. [2021-11-17 12:00:00,484 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) [2021-11-17 12:00:00,484 INFO L276 IsEmpty]: Start isEmpty. Operand 6623 states and 9460 transitions. [2021-11-17 12:00:00,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-17 12:00:00,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:00:00,488 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] [2021-11-17 12:00:00,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 12:00:00,488 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)] === [2021-11-17 12:00:00,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:00:00,489 INFO L85 PathProgramCache]: Analyzing trace with hash 664253334, now seen corresponding path program 1 times [2021-11-17 12:00:00,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:00:00,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773771980] [2021-11-17 12:00:00,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:00:00,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:00:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:00,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:00,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:00:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:00,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:00:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:00,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:00,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 12:00:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:00,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:00:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:00,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-17 12:00:00,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:00,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 12:00:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:00,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 12:00:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:00,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 12:00:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:00,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:00:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:00,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-17 12:00:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:00,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 12:00:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:00,815 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-17 12:00:00,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:00:00,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773771980] [2021-11-17 12:00:00,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773771980] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:00:00,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:00:00,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 12:00:00,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481123437] [2021-11-17 12:00:00,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:00:00,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 12:00:00,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:00:00,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 12:00:00,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:00:00,817 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) [2021-11-17 12:00:01,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:00:01,289 INFO L93 Difference]: Finished difference Result 9275 states and 13163 transitions. [2021-11-17 12:00:01,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 12:00:01,290 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 [2021-11-17 12:00:01,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:00:01,325 INFO L225 Difference]: With dead ends: 9275 [2021-11-17 12:00:01,325 INFO L226 Difference]: Without dead ends: 9273 [2021-11-17 12:00:01,333 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 [2021-11-17 12:00:01,334 INFO L933 BasicCegarLoop]: 6814 mSDtfsCounter, 3792 mSDsluCounter, 16746 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3803 SdHoareTripleChecker+Valid, 23560 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 12:00:01,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3803 Valid, 23560 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 12:00:01,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9273 states. [2021-11-17 12:00:01,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9273 to 9265. [2021-11-17 12:00:01,661 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) [2021-11-17 12:00:01,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9265 states to 9265 states and 13154 transitions. [2021-11-17 12:00:01,710 INFO L78 Accepts]: Start accepts. Automaton has 9265 states and 13154 transitions. Word has length 92 [2021-11-17 12:00:01,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:00:01,711 INFO L470 AbstractCegarLoop]: Abstraction has 9265 states and 13154 transitions. [2021-11-17 12:00:01,711 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) [2021-11-17 12:00:01,711 INFO L276 IsEmpty]: Start isEmpty. Operand 9265 states and 13154 transitions. [2021-11-17 12:00:01,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-17 12:00:01,712 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:00:01,713 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] [2021-11-17 12:00:01,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 12:00:01,714 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)] === [2021-11-17 12:00:01,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:00:01,714 INFO L85 PathProgramCache]: Analyzing trace with hash 919459812, now seen corresponding path program 1 times [2021-11-17 12:00:01,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:00:01,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600168581] [2021-11-17 12:00:01,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:00:01,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:00:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:01,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:01,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:00:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:01,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:00:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:02,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:02,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 12:00:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:02,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:00:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:02,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 12:00:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:02,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 12:00:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:02,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 12:00:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:02,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:00:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:02,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:00:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:02,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 12:00:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:02,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 12:00:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:02,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 12:00:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:02,053 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-11-17 12:00:02,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:00:02,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600168581] [2021-11-17 12:00:02,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600168581] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:00:02,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:00:02,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 12:00:02,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551615011] [2021-11-17 12:00:02,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:00:02,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 12:00:02,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:00:02,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 12:00:02,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:00:02,056 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) [2021-11-17 12:00:02,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:00:02,539 INFO L93 Difference]: Finished difference Result 9275 states and 13163 transitions. [2021-11-17 12:00:02,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 12:00:02,540 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 [2021-11-17 12:00:02,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:00:02,566 INFO L225 Difference]: With dead ends: 9275 [2021-11-17 12:00:02,567 INFO L226 Difference]: Without dead ends: 9273 [2021-11-17 12:00:02,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 12:00:02,571 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5072 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 12:00:02,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5072 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 12:00:02,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9273 states. [2021-11-17 12:00:02,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9273 to 9273. [2021-11-17 12:00:02,949 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) [2021-11-17 12:00:02,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9273 states to 9273 states and 13160 transitions. [2021-11-17 12:00:02,990 INFO L78 Accepts]: Start accepts. Automaton has 9273 states and 13160 transitions. Word has length 90 [2021-11-17 12:00:02,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:00:02,991 INFO L470 AbstractCegarLoop]: Abstraction has 9273 states and 13160 transitions. [2021-11-17 12:00:02,991 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) [2021-11-17 12:00:02,991 INFO L276 IsEmpty]: Start isEmpty. Operand 9273 states and 13160 transitions. [2021-11-17 12:00:02,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-17 12:00:02,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:00:02,993 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] [2021-11-17 12:00:02,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 12:00:02,993 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)] === [2021-11-17 12:00:02,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:00:02,993 INFO L85 PathProgramCache]: Analyzing trace with hash 686578515, now seen corresponding path program 1 times [2021-11-17 12:00:02,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:00:02,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985505463] [2021-11-17 12:00:02,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:00:02,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:00:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:03,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:03,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:00:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:03,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:00:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:03,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:03,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 12:00:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:03,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:00:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:03,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 12:00:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:03,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 12:00:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:03,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 12:00:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:03,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:00:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:03,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:00:03,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:03,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 12:00:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:03,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 12:00:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:03,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 12:00:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:03,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 12:00:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:03,326 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-17 12:00:03,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:00:03,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985505463] [2021-11-17 12:00:03,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985505463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:00:03,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:00:03,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 12:00:03,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310101243] [2021-11-17 12:00:03,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:00:03,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 12:00:03,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:00:03,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 12:00:03,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:00:03,328 INFO L87 Difference]: Start difference. First operand 9273 states and 13160 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, (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) [2021-11-17 12:00:03,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:00:03,765 INFO L93 Difference]: Finished difference Result 9283 states and 13169 transitions. [2021-11-17 12:00:03,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 12:00:03,765 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, (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 95 [2021-11-17 12:00:03,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:00:03,796 INFO L225 Difference]: With dead ends: 9283 [2021-11-17 12:00:03,796 INFO L226 Difference]: Without dead ends: 9281 [2021-11-17 12:00:03,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 12:00:03,803 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5071 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 12:00:03,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5071 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 12:00:03,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9281 states. [2021-11-17 12:00:04,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9281 to 9281. [2021-11-17 12:00:04,084 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) [2021-11-17 12:00:04,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9281 states to 9281 states and 13166 transitions. [2021-11-17 12:00:04,120 INFO L78 Accepts]: Start accepts. Automaton has 9281 states and 13166 transitions. Word has length 95 [2021-11-17 12:00:04,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:00:04,121 INFO L470 AbstractCegarLoop]: Abstraction has 9281 states and 13166 transitions. [2021-11-17 12:00:04,121 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, (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) [2021-11-17 12:00:04,121 INFO L276 IsEmpty]: Start isEmpty. Operand 9281 states and 13166 transitions. [2021-11-17 12:00:04,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-17 12:00:04,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:00:04,123 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] [2021-11-17 12:00:04,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 12:00:04,123 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)] === [2021-11-17 12:00:04,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:00:04,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1978817535, now seen corresponding path program 1 times [2021-11-17 12:00:04,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:00:04,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450969880] [2021-11-17 12:00:04,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:00:04,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:00:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:04,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:04,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:00:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:04,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:00:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:04,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:04,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 12:00:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:04,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:00:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:04,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-17 12:00:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:04,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 12:00:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:04,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 12:00:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:04,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 12:00:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:04,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:00:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:04,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-17 12:00:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:04,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 12:00:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:04,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 12:00:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:04,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:00:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:04,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 12:00:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:04,413 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 12:00:04,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:00:04,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450969880] [2021-11-17 12:00:04,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450969880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:00:04,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:00:04,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 12:00:04,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906986473] [2021-11-17 12:00:04,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:00:04,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 12:00:04,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:00:04,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 12:00:04,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:00:04,415 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) [2021-11-17 12:00:04,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:00:04,860 INFO L93 Difference]: Finished difference Result 9291 states and 13175 transitions. [2021-11-17 12:00:04,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 12:00:04,861 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 [2021-11-17 12:00:04,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:00:04,895 INFO L225 Difference]: With dead ends: 9291 [2021-11-17 12:00:04,895 INFO L226 Difference]: Without dead ends: 9289 [2021-11-17 12:00:04,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 12:00:04,903 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5055 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5063 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 12:00:04,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5063 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 12:00:04,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9289 states. [2021-11-17 12:00:05,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9289 to 9289. [2021-11-17 12:00:05,208 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) [2021-11-17 12:00:05,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9289 states to 9289 states and 13172 transitions. [2021-11-17 12:00:05,247 INFO L78 Accepts]: Start accepts. Automaton has 9289 states and 13172 transitions. Word has length 107 [2021-11-17 12:00:05,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:00:05,247 INFO L470 AbstractCegarLoop]: Abstraction has 9289 states and 13172 transitions. [2021-11-17 12:00:05,247 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) [2021-11-17 12:00:05,248 INFO L276 IsEmpty]: Start isEmpty. Operand 9289 states and 13172 transitions. [2021-11-17 12:00:05,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-17 12:00:05,249 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:00:05,249 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] [2021-11-17 12:00:05,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 12:00:05,249 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)] === [2021-11-17 12:00:05,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:00:05,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1398982870, now seen corresponding path program 1 times [2021-11-17 12:00:05,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:00:05,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715020642] [2021-11-17 12:00:05,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:00:05,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:00:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:00:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:00:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 12:00:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:00:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-17 12:00:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 12:00:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 12:00:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 12:00:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:00:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-17 12:00:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 12:00:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 12:00:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:00:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 12:00:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 12:00:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:05,564 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-17 12:00:05,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:00:05,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715020642] [2021-11-17 12:00:05,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715020642] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:00:05,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:00:05,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 12:00:05,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114689886] [2021-11-17 12:00:05,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:00:05,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 12:00:05,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:00:05,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 12:00:05,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:00:05,566 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) [2021-11-17 12:00:05,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:00:05,986 INFO L93 Difference]: Finished difference Result 9299 states and 13181 transitions. [2021-11-17 12:00:05,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 12:00:05,987 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 [2021-11-17 12:00:05,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:00:06,022 INFO L225 Difference]: With dead ends: 9299 [2021-11-17 12:00:06,024 INFO L226 Difference]: Without dead ends: 9297 [2021-11-17 12:00:06,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 12:00:06,031 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5055 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5062 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 12:00:06,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5062 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 12:00:06,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9297 states. [2021-11-17 12:00:06,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9297 to 9297. [2021-11-17 12:00:06,462 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) [2021-11-17 12:00:06,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9297 states to 9297 states and 13178 transitions. [2021-11-17 12:00:06,503 INFO L78 Accepts]: Start accepts. Automaton has 9297 states and 13178 transitions. Word has length 112 [2021-11-17 12:00:06,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:00:06,503 INFO L470 AbstractCegarLoop]: Abstraction has 9297 states and 13178 transitions. [2021-11-17 12:00:06,504 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) [2021-11-17 12:00:06,504 INFO L276 IsEmpty]: Start isEmpty. Operand 9297 states and 13178 transitions. [2021-11-17 12:00:06,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-17 12:00:06,505 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:00:06,505 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] [2021-11-17 12:00:06,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 12:00:06,505 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)] === [2021-11-17 12:00:06,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:00:06,506 INFO L85 PathProgramCache]: Analyzing trace with hash -134387164, now seen corresponding path program 1 times [2021-11-17 12:00:06,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:00:06,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752714968] [2021-11-17 12:00:06,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:00:06,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:00:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:00:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:00:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 12:00:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:00:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 12:00:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 12:00:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 12:00:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:00:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:00:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 12:00:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 12:00:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 12:00:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 12:00:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:00:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 12:00:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 12:00:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:06,836 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-11-17 12:00:06,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:00:06,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752714968] [2021-11-17 12:00:06,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752714968] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:00:06,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:00:06,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 12:00:06,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659679992] [2021-11-17 12:00:06,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:00:06,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 12:00:06,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:00:06,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 12:00:06,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:00:06,838 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) [2021-11-17 12:00:07,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:00:07,306 INFO L93 Difference]: Finished difference Result 9459 states and 13328 transitions. [2021-11-17 12:00:07,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 12:00:07,306 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 [2021-11-17 12:00:07,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:00:07,346 INFO L225 Difference]: With dead ends: 9459 [2021-11-17 12:00:07,346 INFO L226 Difference]: Without dead ends: 9457 [2021-11-17 12:00:07,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 12:00:07,354 INFO L933 BasicCegarLoop]: 5123 mSDtfsCounter, 5025 mSDsluCounter, 10297 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5031 SdHoareTripleChecker+Valid, 15420 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 12:00:07,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5031 Valid, 15420 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 12:00:07,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9457 states. [2021-11-17 12:00:07,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9457 to 9455. [2021-11-17 12:00:07,684 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) [2021-11-17 12:00:07,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9455 states to 9455 states and 13324 transitions. [2021-11-17 12:00:07,722 INFO L78 Accepts]: Start accepts. Automaton has 9455 states and 13324 transitions. Word has length 110 [2021-11-17 12:00:07,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:00:07,722 INFO L470 AbstractCegarLoop]: Abstraction has 9455 states and 13324 transitions. [2021-11-17 12:00:07,723 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) [2021-11-17 12:00:07,723 INFO L276 IsEmpty]: Start isEmpty. Operand 9455 states and 13324 transitions. [2021-11-17 12:00:07,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-17 12:00:07,724 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:00:07,724 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] [2021-11-17 12:00:07,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 12:00:07,724 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)] === [2021-11-17 12:00:07,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:00:07,725 INFO L85 PathProgramCache]: Analyzing trace with hash -252498058, now seen corresponding path program 1 times [2021-11-17 12:00:07,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:00:07,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520614803] [2021-11-17 12:00:07,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:00:07,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:00:07,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:07,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:07,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:00:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:07,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:00:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:07,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:07,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 12:00:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:07,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:00:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:07,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-17 12:00:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:07,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 12:00:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:07,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 12:00:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:07,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 12:00:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:07,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:00:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:08,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-17 12:00:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:08,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 12:00:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:08,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 12:00:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:08,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:00:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:08,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 12:00:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:08,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 12:00:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:08,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 12:00:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:08,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 12:00:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:08,032 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-11-17 12:00:08,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:00:08,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520614803] [2021-11-17 12:00:08,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520614803] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:00:08,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:00:08,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 12:00:08,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089559233] [2021-11-17 12:00:08,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:00:08,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 12:00:08,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:00:08,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 12:00:08,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:00:08,033 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) [2021-11-17 12:00:08,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:00:08,539 INFO L93 Difference]: Finished difference Result 9561 states and 13406 transitions. [2021-11-17 12:00:08,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 12:00:08,540 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 [2021-11-17 12:00:08,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:00:08,571 INFO L225 Difference]: With dead ends: 9561 [2021-11-17 12:00:08,572 INFO L226 Difference]: Without dead ends: 9559 [2021-11-17 12:00:08,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 12:00:08,578 INFO L933 BasicCegarLoop]: 5111 mSDtfsCounter, 4997 mSDsluCounter, 10296 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5002 SdHoareTripleChecker+Valid, 15407 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 12:00:08,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5002 Valid, 15407 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 12:00:08,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9559 states. [2021-11-17 12:00:08,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9559 to 9557. [2021-11-17 12:00:08,886 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) [2021-11-17 12:00:08,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9557 states to 9557 states and 13402 transitions. [2021-11-17 12:00:08,921 INFO L78 Accepts]: Start accepts. Automaton has 9557 states and 13402 transitions. Word has length 122 [2021-11-17 12:00:08,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:00:08,921 INFO L470 AbstractCegarLoop]: Abstraction has 9557 states and 13402 transitions. [2021-11-17 12:00:08,922 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) [2021-11-17 12:00:08,922 INFO L276 IsEmpty]: Start isEmpty. Operand 9557 states and 13402 transitions. [2021-11-17 12:00:08,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-17 12:00:08,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:00:08,923 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] [2021-11-17 12:00:08,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 12:00:08,924 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)] === [2021-11-17 12:00:08,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:00:08,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1616895812, now seen corresponding path program 1 times [2021-11-17 12:00:08,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:00:08,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828192007] [2021-11-17 12:00:08,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:00:08,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:00:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:00:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:00:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 12:00:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:00:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 12:00:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 12:00:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 12:00:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:00:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:00:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 12:00:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 12:00:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 12:00:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 12:00:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:00:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 12:00:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 12:00:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 12:00:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-17 12:00:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:09,225 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-11-17 12:00:09,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:00:09,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828192007] [2021-11-17 12:00:09,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828192007] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:00:09,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:00:09,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 12:00:09,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815776181] [2021-11-17 12:00:09,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:00:09,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 12:00:09,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:00:09,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 12:00:09,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:00:09,227 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) [2021-11-17 12:00:09,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:00:09,629 INFO L93 Difference]: Finished difference Result 9567 states and 13411 transitions. [2021-11-17 12:00:09,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 12:00:09,630 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 [2021-11-17 12:00:09,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:00:09,660 INFO L225 Difference]: With dead ends: 9567 [2021-11-17 12:00:09,660 INFO L226 Difference]: Without dead ends: 9565 [2021-11-17 12:00:09,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 12:00:09,666 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5066 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 12:00:09,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5066 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 12:00:09,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9565 states. [2021-11-17 12:00:10,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9565 to 9565. [2021-11-17 12:00:10,181 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) [2021-11-17 12:00:10,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9565 states to 9565 states and 13408 transitions. [2021-11-17 12:00:10,216 INFO L78 Accepts]: Start accepts. Automaton has 9565 states and 13408 transitions. Word has length 120 [2021-11-17 12:00:10,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:00:10,216 INFO L470 AbstractCegarLoop]: Abstraction has 9565 states and 13408 transitions. [2021-11-17 12:00:10,217 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) [2021-11-17 12:00:10,217 INFO L276 IsEmpty]: Start isEmpty. Operand 9565 states and 13408 transitions. [2021-11-17 12:00:10,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-17 12:00:10,218 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:00:10,218 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] [2021-11-17 12:00:10,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-17 12:00:10,219 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)] === [2021-11-17 12:00:10,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:00:10,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1056539021, now seen corresponding path program 1 times [2021-11-17 12:00:10,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:00:10,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061182058] [2021-11-17 12:00:10,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:00:10,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:00:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:00:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:00:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 12:00:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:00:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 12:00:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 12:00:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 12:00:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:00:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:00:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 12:00:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 12:00:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 12:00:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 12:00:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:00:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 12:00:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 12:00:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 12:00:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-17 12:00:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 12:00:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:10,587 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-11-17 12:00:10,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:00:10,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061182058] [2021-11-17 12:00:10,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061182058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:00:10,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:00:10,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 12:00:10,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499511037] [2021-11-17 12:00:10,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:00:10,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 12:00:10,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:00:10,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 12:00:10,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:00:10,590 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) [2021-11-17 12:00:11,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:00:11,122 INFO L93 Difference]: Finished difference Result 9575 states and 13417 transitions. [2021-11-17 12:00:11,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 12:00:11,123 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 [2021-11-17 12:00:11,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:00:11,159 INFO L225 Difference]: With dead ends: 9575 [2021-11-17 12:00:11,159 INFO L226 Difference]: Without dead ends: 9573 [2021-11-17 12:00:11,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 12:00:11,168 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5065 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 12:00:11,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5065 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 12:00:11,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9573 states. [2021-11-17 12:00:11,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9573 to 9573. [2021-11-17 12:00:11,538 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) [2021-11-17 12:00:11,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9573 states to 9573 states and 13414 transitions. [2021-11-17 12:00:11,573 INFO L78 Accepts]: Start accepts. Automaton has 9573 states and 13414 transitions. Word has length 125 [2021-11-17 12:00:11,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:00:11,573 INFO L470 AbstractCegarLoop]: Abstraction has 9573 states and 13414 transitions. [2021-11-17 12:00:11,573 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) [2021-11-17 12:00:11,573 INFO L276 IsEmpty]: Start isEmpty. Operand 9573 states and 13414 transitions. [2021-11-17 12:00:11,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-17 12:00:11,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:00:11,575 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] [2021-11-17 12:00:11,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-17 12:00:11,575 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)] === [2021-11-17 12:00:11,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:00:11,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1287571720, now seen corresponding path program 1 times [2021-11-17 12:00:11,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:00:11,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724252674] [2021-11-17 12:00:11,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:00:11,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:00:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:11,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:11,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:00:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 12:00:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:00:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:00:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:00:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:00:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:00:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 12:00:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 12:00:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 12:00:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 12:00:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 12:00:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 12:00:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:12,132 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 12:00:12,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:00:12,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724252674] [2021-11-17 12:00:12,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724252674] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:00:12,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:00:12,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:00:12,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599636676] [2021-11-17 12:00:12,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:00:12,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:00:12,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:00:12,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:00:12,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:00:12,134 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) [2021-11-17 12:00:14,201 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 [] [2021-11-17 12:00:46,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:00:46,566 INFO L93 Difference]: Finished difference Result 10682 states and 15231 transitions. [2021-11-17 12:00:46,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 12:00:46,567 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 [2021-11-17 12:00:46,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:00:46,605 INFO L225 Difference]: With dead ends: 10682 [2021-11-17 12:00:46,605 INFO L226 Difference]: Without dead ends: 10680 [2021-11-17 12:00:46,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-17 12:00:46,614 INFO L933 BasicCegarLoop]: 6172 mSDtfsCounter, 4720 mSDsluCounter, 14045 mSDsCounter, 0 mSdLazyCounter, 7119 mSolverCounterSat, 2524 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5510 SdHoareTripleChecker+Valid, 20217 SdHoareTripleChecker+Invalid, 9644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2524 IncrementalHoareTripleChecker+Valid, 7119 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.2s IncrementalHoareTripleChecker+Time [2021-11-17 12:00:46,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5510 Valid, 20217 Invalid, 9644 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2524 Valid, 7119 Invalid, 1 Unknown, 0 Unchecked, 33.2s Time] [2021-11-17 12:00:46,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10680 states. [2021-11-17 12:00:47,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10680 to 9928. [2021-11-17 12:00:47,051 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) [2021-11-17 12:00:47,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9928 states to 9928 states and 13975 transitions. [2021-11-17 12:00:47,099 INFO L78 Accepts]: Start accepts. Automaton has 9928 states and 13975 transitions. Word has length 147 [2021-11-17 12:00:47,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:00:47,100 INFO L470 AbstractCegarLoop]: Abstraction has 9928 states and 13975 transitions. [2021-11-17 12:00:47,100 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) [2021-11-17 12:00:47,100 INFO L276 IsEmpty]: Start isEmpty. Operand 9928 states and 13975 transitions. [2021-11-17 12:00:47,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-17 12:00:47,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:00:47,102 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] [2021-11-17 12:00:47,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-17 12:00:47,103 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)] === [2021-11-17 12:00:47,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:00:47,103 INFO L85 PathProgramCache]: Analyzing trace with hash 2063342692, now seen corresponding path program 1 times [2021-11-17 12:00:47,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:00:47,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570817930] [2021-11-17 12:00:47,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:00:47,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:00:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:00:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:00:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 12:00:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:00:47,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 12:00:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 12:00:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 12:00:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:00:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:00:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 12:00:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 12:00:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 12:00:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 12:00:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:00:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 12:00:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 12:00:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 12:00:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-17 12:00:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 12:00:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 12:00:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:47,506 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-17 12:00:47,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:00:47,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570817930] [2021-11-17 12:00:47,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570817930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:00:47,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:00:47,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 12:00:47,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865599563] [2021-11-17 12:00:47,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:00:47,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 12:00:47,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:00:47,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 12:00:47,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:00:47,508 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) [2021-11-17 12:00:48,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:00:48,105 INFO L93 Difference]: Finished difference Result 9938 states and 13984 transitions. [2021-11-17 12:00:48,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 12:00:48,105 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 [2021-11-17 12:00:48,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:00:48,135 INFO L225 Difference]: With dead ends: 9938 [2021-11-17 12:00:48,135 INFO L226 Difference]: Without dead ends: 9936 [2021-11-17 12:00:48,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 12:00:48,140 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5064 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 12:00:48,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5064 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 12:00:48,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9936 states. [2021-11-17 12:00:48,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9936 to 9936. [2021-11-17 12:00:48,508 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) [2021-11-17 12:00:48,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9936 states to 9936 states and 13981 transitions. [2021-11-17 12:00:48,543 INFO L78 Accepts]: Start accepts. Automaton has 9936 states and 13981 transitions. Word has length 130 [2021-11-17 12:00:48,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:00:48,544 INFO L470 AbstractCegarLoop]: Abstraction has 9936 states and 13981 transitions. [2021-11-17 12:00:48,544 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) [2021-11-17 12:00:48,544 INFO L276 IsEmpty]: Start isEmpty. Operand 9936 states and 13981 transitions. [2021-11-17 12:00:48,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-17 12:00:48,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:00:48,545 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] [2021-11-17 12:00:48,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-17 12:00:48,546 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)] === [2021-11-17 12:00:48,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:00:48,546 INFO L85 PathProgramCache]: Analyzing trace with hash 912106707, now seen corresponding path program 1 times [2021-11-17 12:00:48,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:00:48,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131894575] [2021-11-17 12:00:48,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:00:48,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:00:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:00:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:00:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 12:00:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:00:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 12:00:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 12:00:48,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 12:00:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:00:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 12:00:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 12:00:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 12:00:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 12:00:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 12:00:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 12:00:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 12:00:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 12:00:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 12:00:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-17 12:00:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 12:00:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 12:00:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 12:00:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:48,897 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2021-11-17 12:00:48,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:00:48,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131894575] [2021-11-17 12:00:48,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131894575] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:00:48,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:00:48,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 12:00:48,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087723943] [2021-11-17 12:00:48,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:00:48,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 12:00:48,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:00:48,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 12:00:48,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:00:48,900 INFO L87 Difference]: Start difference. First operand 9936 states and 13981 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, (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) [2021-11-17 12:00:49,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:00:49,441 INFO L93 Difference]: Finished difference Result 9988 states and 14025 transitions. [2021-11-17 12:00:49,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 12:00:49,442 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, (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 135 [2021-11-17 12:00:49,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:00:49,480 INFO L225 Difference]: With dead ends: 9988 [2021-11-17 12:00:49,480 INFO L226 Difference]: Without dead ends: 9984 [2021-11-17 12:00:49,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 12:00:49,487 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5017 mSDsluCounter, 10226 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5018 SdHoareTripleChecker+Valid, 15325 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 12:00:49,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5018 Valid, 15325 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 12:00:49,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9984 states. [2021-11-17 12:00:49,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9984 to 9982. [2021-11-17 12:00:49,998 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) [2021-11-17 12:00:50,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9982 states to 9982 states and 14019 transitions. [2021-11-17 12:00:50,036 INFO L78 Accepts]: Start accepts. Automaton has 9982 states and 14019 transitions. Word has length 135 [2021-11-17 12:00:50,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:00:50,037 INFO L470 AbstractCegarLoop]: Abstraction has 9982 states and 14019 transitions. [2021-11-17 12:00:50,037 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, (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) [2021-11-17 12:00:50,037 INFO L276 IsEmpty]: Start isEmpty. Operand 9982 states and 14019 transitions. [2021-11-17 12:00:50,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-17 12:00:50,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:00:50,039 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:00:50,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-17 12:00:50,039 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)] === [2021-11-17 12:00:50,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:00:50,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1824290943, now seen corresponding path program 1 times [2021-11-17 12:00:50,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:00:50,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136234285] [2021-11-17 12:00:50,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:00:50,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:00:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:00:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:00:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 12:00:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:00:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-17 12:00:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 12:00:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 12:00:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 12:00:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 12:00:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-17 12:00:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 12:00:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 12:00:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 12:00:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 12:00:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 12:00:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 12:00:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 12:00:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 12:00:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 12:00:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 12:00:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-11-17 12:00:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 12:00:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:50,437 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2021-11-17 12:00:50,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:00:50,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136234285] [2021-11-17 12:00:50,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136234285] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:00:50,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:00:50,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 12:00:50,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101373884] [2021-11-17 12:00:50,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:00:50,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 12:00:50,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:00:50,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 12:00:50,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:00:50,439 INFO L87 Difference]: Start difference. First operand 9982 states and 14019 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, (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) [2021-11-17 12:00:51,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:00:51,005 INFO L93 Difference]: Finished difference Result 9988 states and 14024 transitions. [2021-11-17 12:00:51,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 12:00:51,005 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, (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 147 [2021-11-17 12:00:51,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:00:51,039 INFO L225 Difference]: With dead ends: 9988 [2021-11-17 12:00:51,039 INFO L226 Difference]: Without dead ends: 9773 [2021-11-17 12:00:51,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 12:00:51,047 INFO L933 BasicCegarLoop]: 5100 mSDtfsCounter, 5055 mSDsluCounter, 10174 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5055 SdHoareTripleChecker+Valid, 15274 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 12:00:51,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5055 Valid, 15274 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 12:00:51,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9773 states. [2021-11-17 12:00:51,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9773 to 9773. [2021-11-17 12:00:51,446 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) [2021-11-17 12:00:51,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9773 states to 9773 states and 13799 transitions. [2021-11-17 12:00:51,487 INFO L78 Accepts]: Start accepts. Automaton has 9773 states and 13799 transitions. Word has length 147 [2021-11-17 12:00:51,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:00:51,488 INFO L470 AbstractCegarLoop]: Abstraction has 9773 states and 13799 transitions. [2021-11-17 12:00:51,488 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, (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) [2021-11-17 12:00:51,488 INFO L276 IsEmpty]: Start isEmpty. Operand 9773 states and 13799 transitions. [2021-11-17 12:00:51,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-17 12:00:51,489 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:00:51,490 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] [2021-11-17 12:00:51,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-17 12:00:51,490 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)] === [2021-11-17 12:00:51,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:00:51,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1142503990, now seen corresponding path program 1 times [2021-11-17 12:00:51,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:00:51,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117892281] [2021-11-17 12:00:51,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:00:51,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:00:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:51,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:51,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:00:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:51,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 12:00:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:51,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:51,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:51,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:00:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:51,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:00:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:51,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:51,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:51,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:51,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:00:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:51,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:00:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:51,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:51,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:00:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:51,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:00:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:51,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 12:00:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:51,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 12:00:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:51,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:00:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:52,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 12:00:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:52,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 12:00:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:52,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 12:00:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:52,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 12:00:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:52,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 12:00:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:52,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 12:00:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:52,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 12:00:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:52,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 12:00:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:52,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 12:00:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:52,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 12:00:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:52,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 12:00:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:00:52,109 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-17 12:00:52,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:00:52,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117892281] [2021-11-17 12:00:52,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117892281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:00:52,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:00:52,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 12:00:52,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591519504] [2021-11-17 12:00:52,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:00:52,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 12:00:52,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:00:52,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 12:00:52,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-17 12:00:52,111 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) [2021-11-17 12:00:54,173 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:00:56,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:02:00,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:02:00,122 INFO L93 Difference]: Finished difference Result 10768 states and 15409 transitions. [2021-11-17 12:02:00,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 12:02:00,123 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 [2021-11-17 12:02:00,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:02:00,166 INFO L225 Difference]: With dead ends: 10768 [2021-11-17 12:02:00,167 INFO L226 Difference]: Without dead ends: 10766 [2021-11-17 12:02:00,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-11-17 12:02:00,175 INFO L933 BasicCegarLoop]: 5062 mSDtfsCounter, 10281 mSDsluCounter, 13073 mSDsCounter, 0 mSdLazyCounter, 11699 mSolverCounterSat, 8030 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10877 SdHoareTripleChecker+Valid, 18135 SdHoareTripleChecker+Invalid, 19731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8030 IncrementalHoareTripleChecker+Valid, 11699 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.1s IncrementalHoareTripleChecker+Time [2021-11-17 12:02:00,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10877 Valid, 18135 Invalid, 19731 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8030 Valid, 11699 Invalid, 2 Unknown, 0 Unchecked, 66.1s Time] [2021-11-17 12:02:00,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2021-11-17 12:02:00,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 9809. [2021-11-17 12:02:00,669 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) [2021-11-17 12:02:00,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9809 states to 9809 states and 13828 transitions. [2021-11-17 12:02:00,699 INFO L78 Accepts]: Start accepts. Automaton has 9809 states and 13828 transitions. Word has length 180 [2021-11-17 12:02:00,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:02:00,700 INFO L470 AbstractCegarLoop]: Abstraction has 9809 states and 13828 transitions. [2021-11-17 12:02:00,700 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) [2021-11-17 12:02:00,700 INFO L276 IsEmpty]: Start isEmpty. Operand 9809 states and 13828 transitions. [2021-11-17 12:02:00,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-17 12:02:00,701 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:02:00,702 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] [2021-11-17 12:02:00,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-17 12:02:00,702 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)] === [2021-11-17 12:02:00,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:02:00,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1210655949, now seen corresponding path program 1 times [2021-11-17 12:02:00,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:02:00,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51056334] [2021-11-17 12:02:00,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:02:00,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:02:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:02:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:02:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 12:02:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:02:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:02:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:02:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:02:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:02:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:02:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:02:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:02:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:02:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:02:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:02:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 12:02:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 12:02:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:02:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 12:02:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 12:02:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 12:02:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 12:02:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:00,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 12:02:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:01,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 12:02:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:01,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 12:02:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:01,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 12:02:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:01,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 12:02:01,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:01,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 12:02:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:01,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-11-17 12:02:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:01,147 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-17 12:02:01,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:02:01,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51056334] [2021-11-17 12:02:01,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51056334] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:02:01,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:02:01,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:02:01,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049673363] [2021-11-17 12:02:01,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:02:01,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:02:01,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:02:01,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:02:01,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:02:01,151 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) [2021-11-17 12:02:03,211 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:02:05,498 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:02:41,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:02:41,263 INFO L93 Difference]: Finished difference Result 20556 states and 29231 transitions. [2021-11-17 12:02:41,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 12:02:41,263 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 [2021-11-17 12:02:41,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:02:41,305 INFO L225 Difference]: With dead ends: 20556 [2021-11-17 12:02:41,306 INFO L226 Difference]: Without dead ends: 10766 [2021-11-17 12:02:41,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 12:02:41,349 INFO L933 BasicCegarLoop]: 4489 mSDtfsCounter, 3677 mSDsluCounter, 9280 mSDsCounter, 0 mSdLazyCounter, 6550 mSolverCounterSat, 3471 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3987 SdHoareTripleChecker+Valid, 13769 SdHoareTripleChecker+Invalid, 10023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3471 IncrementalHoareTripleChecker+Valid, 6550 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.8s IncrementalHoareTripleChecker+Time [2021-11-17 12:02:41,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3987 Valid, 13769 Invalid, 10023 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3471 Valid, 6550 Invalid, 2 Unknown, 0 Unchecked, 38.8s Time] [2021-11-17 12:02:41,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2021-11-17 12:02:41,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 9813. [2021-11-17 12:02:41,871 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) [2021-11-17 12:02:41,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9813 states to 9813 states and 13832 transitions. [2021-11-17 12:02:41,909 INFO L78 Accepts]: Start accepts. Automaton has 9813 states and 13832 transitions. Word has length 188 [2021-11-17 12:02:41,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:02:41,909 INFO L470 AbstractCegarLoop]: Abstraction has 9813 states and 13832 transitions. [2021-11-17 12:02:41,909 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) [2021-11-17 12:02:41,909 INFO L276 IsEmpty]: Start isEmpty. Operand 9813 states and 13832 transitions. [2021-11-17 12:02:41,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-17 12:02:41,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:02:41,912 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] [2021-11-17 12:02:41,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-17 12:02:41,912 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)] === [2021-11-17 12:02:41,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:02:41,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1500842331, now seen corresponding path program 1 times [2021-11-17 12:02:41,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:02:41,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793548578] [2021-11-17 12:02:41,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:02:41,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:02:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:02:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:02:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 12:02:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:02:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:02:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:02:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:02:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:02:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:02:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:02:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:02:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:02:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:02:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:02:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 12:02:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 12:02:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:02:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 12:02:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 12:02:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 12:02:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 12:02:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 12:02:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:02:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 12:02:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 12:02:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 12:02:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 12:02:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 12:02:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 12:02:42,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:02:42,289 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-17 12:02:42,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:02:42,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793548578] [2021-11-17 12:02:42,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793548578] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:02:42,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:02:42,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 12:02:42,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854744935] [2021-11-17 12:02:42,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:02:42,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 12:02:42,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:02:42,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 12:02:42,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:02:42,291 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) [2021-11-17 12:02:44,351 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:02:46,638 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:03:13,277 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:03:18,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:03:18,521 INFO L93 Difference]: Finished difference Result 20927 states and 29809 transitions. [2021-11-17 12:03:18,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 12:03:18,522 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 [2021-11-17 12:03:18,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:03:18,560 INFO L225 Difference]: With dead ends: 20927 [2021-11-17 12:03:18,560 INFO L226 Difference]: Without dead ends: 11133 [2021-11-17 12:03:18,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 12:03:18,592 INFO L933 BasicCegarLoop]: 4558 mSDtfsCounter, 4120 mSDsluCounter, 5777 mSDsCounter, 0 mSdLazyCounter, 4568 mSolverCounterSat, 3643 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4494 SdHoareTripleChecker+Valid, 10335 SdHoareTripleChecker+Invalid, 8214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3643 IncrementalHoareTripleChecker+Valid, 4568 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.0s IncrementalHoareTripleChecker+Time [2021-11-17 12:03:18,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4494 Valid, 10335 Invalid, 8214 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3643 Valid, 4568 Invalid, 3 Unknown, 0 Unchecked, 35.0s Time] [2021-11-17 12:03:18,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11133 states. [2021-11-17 12:03:19,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11133 to 9821. [2021-11-17 12:03:19,106 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) [2021-11-17 12:03:19,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9821 states to 9821 states and 13844 transitions. [2021-11-17 12:03:19,141 INFO L78 Accepts]: Start accepts. Automaton has 9821 states and 13844 transitions. Word has length 192 [2021-11-17 12:03:19,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:03:19,142 INFO L470 AbstractCegarLoop]: Abstraction has 9821 states and 13844 transitions. [2021-11-17 12:03:19,142 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) [2021-11-17 12:03:19,142 INFO L276 IsEmpty]: Start isEmpty. Operand 9821 states and 13844 transitions. [2021-11-17 12:03:19,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-17 12:03:19,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:03:19,144 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] [2021-11-17 12:03:19,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-17 12:03:19,145 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)] === [2021-11-17 12:03:19,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:03:19,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1090925634, now seen corresponding path program 1 times [2021-11-17 12:03:19,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:03:19,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349071376] [2021-11-17 12:03:19,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:03:19,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:03:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:03:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:03:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 12:03:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:03:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:03:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:03:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:03:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:03:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:03:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:03:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:03:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:03:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:03:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:03:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 12:03:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 12:03:19,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:03:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 12:03:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 12:03:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 12:03:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 12:03:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 12:03:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 12:03:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 12:03:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 12:03:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 12:03:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 12:03:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 12:03:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 12:03:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:03:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-11-17 12:03:19,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:03:19,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349071376] [2021-11-17 12:03:19,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349071376] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:03:19,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:03:19,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:03:19,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92210664] [2021-11-17 12:03:19,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:03:19,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:03:19,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:03:19,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:03:19,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:03:19,565 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) [2021-11-17 12:03:21,625 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 [] [2021-11-17 12:03:23,916 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:03:26,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:04:03,015 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:04:04,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:04:04,786 INFO L93 Difference]: Finished difference Result 20857 states and 29946 transitions. [2021-11-17 12:04:04,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 12:04:04,787 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 [2021-11-17 12:04:04,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:04:04,820 INFO L225 Difference]: With dead ends: 20857 [2021-11-17 12:04:04,820 INFO L226 Difference]: Without dead ends: 11055 [2021-11-17 12:04:04,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-17 12:04:04,844 INFO L933 BasicCegarLoop]: 4500 mSDtfsCounter, 5922 mSDsluCounter, 7526 mSDsCounter, 0 mSdLazyCounter, 5699 mSolverCounterSat, 5868 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6156 SdHoareTripleChecker+Valid, 12026 SdHoareTripleChecker+Invalid, 11570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5868 IncrementalHoareTripleChecker+Valid, 5699 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.5s IncrementalHoareTripleChecker+Time [2021-11-17 12:04:04,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6156 Valid, 12026 Invalid, 11570 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5868 Valid, 5699 Invalid, 3 Unknown, 0 Unchecked, 43.5s Time] [2021-11-17 12:04:04,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11055 states. [2021-11-17 12:04:05,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11055 to 9651. [2021-11-17 12:04:05,266 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) [2021-11-17 12:04:05,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9651 states to 9651 states and 13573 transitions. [2021-11-17 12:04:05,305 INFO L78 Accepts]: Start accepts. Automaton has 9651 states and 13573 transitions. Word has length 192 [2021-11-17 12:04:05,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:04:05,305 INFO L470 AbstractCegarLoop]: Abstraction has 9651 states and 13573 transitions. [2021-11-17 12:04:05,305 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) [2021-11-17 12:04:05,306 INFO L276 IsEmpty]: Start isEmpty. Operand 9651 states and 13573 transitions. [2021-11-17 12:04:05,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-17 12:04:05,308 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:04:05,310 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] [2021-11-17 12:04:05,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-17 12:04:05,310 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)] === [2021-11-17 12:04:05,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:04:05,311 INFO L85 PathProgramCache]: Analyzing trace with hash 483802596, now seen corresponding path program 1 times [2021-11-17 12:04:05,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:04:05,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405379059] [2021-11-17 12:04:05,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:04:05,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:04:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:04:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:04:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 12:04:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:04:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:04:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:04:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:04:05,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:04:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:04:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:04:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:04:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:04:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:04:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:04:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 12:04:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 12:04:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:04:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 12:04:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 12:04:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 12:04:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 12:04:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 12:04:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:04:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 12:04:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 12:04:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 12:04:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 12:04:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 12:04:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 12:04:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:05,999 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-17 12:04:05,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:04:05,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405379059] [2021-11-17 12:04:05,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405379059] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:04:06,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:04:06,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 12:04:06,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782255405] [2021-11-17 12:04:06,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:04:06,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 12:04:06,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:04:06,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 12:04:06,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-17 12:04:06,001 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) [2021-11-17 12:04:08,069 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 [] [2021-11-17 12:04:10,348 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:04:52,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:04:52,849 INFO L93 Difference]: Finished difference Result 10903 states and 15630 transitions. [2021-11-17 12:04:52,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 12:04:52,850 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 [2021-11-17 12:04:52,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:04:52,880 INFO L225 Difference]: With dead ends: 10903 [2021-11-17 12:04:52,880 INFO L226 Difference]: Without dead ends: 10901 [2021-11-17 12:04:52,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-11-17 12:04:52,884 INFO L933 BasicCegarLoop]: 4461 mSDtfsCounter, 7547 mSDsluCounter, 9224 mSDsCounter, 0 mSdLazyCounter, 6606 mSolverCounterSat, 5431 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7984 SdHoareTripleChecker+Valid, 13685 SdHoareTripleChecker+Invalid, 12039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5431 IncrementalHoareTripleChecker+Valid, 6606 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.2s IncrementalHoareTripleChecker+Time [2021-11-17 12:04:52,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7984 Valid, 13685 Invalid, 12039 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5431 Valid, 6606 Invalid, 2 Unknown, 0 Unchecked, 45.2s Time] [2021-11-17 12:04:52,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10901 states. [2021-11-17 12:04:53,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10901 to 9667. [2021-11-17 12:04:53,329 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) [2021-11-17 12:04:53,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9667 states to 9667 states and 13585 transitions. [2021-11-17 12:04:53,369 INFO L78 Accepts]: Start accepts. Automaton has 9667 states and 13585 transitions. Word has length 195 [2021-11-17 12:04:53,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:04:53,370 INFO L470 AbstractCegarLoop]: Abstraction has 9667 states and 13585 transitions. [2021-11-17 12:04:53,370 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) [2021-11-17 12:04:53,370 INFO L276 IsEmpty]: Start isEmpty. Operand 9667 states and 13585 transitions. [2021-11-17 12:04:53,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-17 12:04:53,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:04:53,372 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] [2021-11-17 12:04:53,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-17 12:04:53,373 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)] === [2021-11-17 12:04:53,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:04:53,373 INFO L85 PathProgramCache]: Analyzing trace with hash 157709175, now seen corresponding path program 1 times [2021-11-17 12:04:53,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:04:53,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801273244] [2021-11-17 12:04:53,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:04:53,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:04:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:04:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:04:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 12:04:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:04:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:04:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:04:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:04:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:04:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:04:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:04:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:04:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:04:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:04:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:04:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 12:04:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 12:04:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:04:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 12:04:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 12:04:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 12:04:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 12:04:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 12:04:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:04:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 12:04:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 12:04:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 12:04:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 12:04:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 12:04:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 12:04:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:04:53,790 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-17 12:04:53,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:04:53,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801273244] [2021-11-17 12:04:53,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801273244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:04:53,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:04:53,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 12:04:53,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653588407] [2021-11-17 12:04:53,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:04:53,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 12:04:53,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:04:53,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 12:04:53,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 12:04:53,793 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) [2021-11-17 12:04:55,883 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:04:58,164 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:05:28,512 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:05:30,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:05:30,020 INFO L93 Difference]: Finished difference Result 20647 states and 29375 transitions. [2021-11-17 12:05:30,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 12:05:30,020 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 [2021-11-17 12:05:30,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:05:30,055 INFO L225 Difference]: With dead ends: 20647 [2021-11-17 12:05:30,055 INFO L226 Difference]: Without dead ends: 10999 [2021-11-17 12:05:30,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-17 12:05:30,082 INFO L933 BasicCegarLoop]: 4511 mSDtfsCounter, 3755 mSDsluCounter, 6074 mSDsCounter, 0 mSdLazyCounter, 4512 mSolverCounterSat, 3498 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4065 SdHoareTripleChecker+Valid, 10585 SdHoareTripleChecker+Invalid, 8012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3498 IncrementalHoareTripleChecker+Valid, 4512 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.9s IncrementalHoareTripleChecker+Time [2021-11-17 12:05:30,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4065 Valid, 10585 Invalid, 8012 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3498 Valid, 4512 Invalid, 2 Unknown, 0 Unchecked, 34.9s Time] [2021-11-17 12:05:30,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10999 states. [2021-11-17 12:05:30,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10999 to 9669. [2021-11-17 12:05:30,492 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) [2021-11-17 12:05:30,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9669 states to 9669 states and 13587 transitions. [2021-11-17 12:05:30,531 INFO L78 Accepts]: Start accepts. Automaton has 9669 states and 13587 transitions. Word has length 196 [2021-11-17 12:05:30,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:05:30,532 INFO L470 AbstractCegarLoop]: Abstraction has 9669 states and 13587 transitions. [2021-11-17 12:05:30,532 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) [2021-11-17 12:05:30,532 INFO L276 IsEmpty]: Start isEmpty. Operand 9669 states and 13587 transitions. [2021-11-17 12:05:30,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-17 12:05:30,534 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:05:30,534 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] [2021-11-17 12:05:30,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-17 12:05:30,535 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)] === [2021-11-17 12:05:30,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:05:30,535 INFO L85 PathProgramCache]: Analyzing trace with hash 885463104, now seen corresponding path program 1 times [2021-11-17 12:05:30,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:05:30,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266418661] [2021-11-17 12:05:30,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:05:30,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:05:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:05:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:05:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 12:05:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:05:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:05:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:05:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:05:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:05:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:05:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:05:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:05:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:05:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:05:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:05:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 12:05:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 12:05:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:05:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 12:05:30,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 12:05:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 12:05:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 12:05:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 12:05:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 12:05:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 12:05:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:30,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 12:05:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:31,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 12:05:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:31,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 12:05:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:31,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 12:05:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:31,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 12:05:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:05:31,083 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-17 12:05:31,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:05:31,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266418661] [2021-11-17 12:05:31,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266418661] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:05:31,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:05:31,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 12:05:31,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598544825] [2021-11-17 12:05:31,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:05:31,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 12:05:31,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:05:31,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 12:05:31,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-17 12:05:31,085 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) [2021-11-17 12:05:33,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:05:35,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:05:37,755 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:06:49,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:06:49,854 INFO L93 Difference]: Finished difference Result 11046 states and 15864 transitions. [2021-11-17 12:06:49,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 12:06:49,854 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 [2021-11-17 12:06:49,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:06:49,889 INFO L225 Difference]: With dead ends: 11046 [2021-11-17 12:06:49,889 INFO L226 Difference]: Without dead ends: 11044 [2021-11-17 12:06:49,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-11-17 12:06:49,896 INFO L933 BasicCegarLoop]: 4558 mSDtfsCounter, 7930 mSDsluCounter, 10658 mSDsCounter, 0 mSdLazyCounter, 11300 mSolverCounterSat, 6505 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8240 SdHoareTripleChecker+Valid, 15216 SdHoareTripleChecker+Invalid, 17808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6505 IncrementalHoareTripleChecker+Valid, 11300 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.6s IncrementalHoareTripleChecker+Time [2021-11-17 12:06:49,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8240 Valid, 15216 Invalid, 17808 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6505 Valid, 11300 Invalid, 3 Unknown, 0 Unchecked, 76.6s Time] [2021-11-17 12:06:49,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11044 states. [2021-11-17 12:06:50,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11044 to 9683. [2021-11-17 12:06:50,328 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) [2021-11-17 12:06:50,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9683 states to 9683 states and 13597 transitions. [2021-11-17 12:06:50,467 INFO L78 Accepts]: Start accepts. Automaton has 9683 states and 13597 transitions. Word has length 197 [2021-11-17 12:06:50,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:06:50,468 INFO L470 AbstractCegarLoop]: Abstraction has 9683 states and 13597 transitions. [2021-11-17 12:06:50,468 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) [2021-11-17 12:06:50,468 INFO L276 IsEmpty]: Start isEmpty. Operand 9683 states and 13597 transitions. [2021-11-17 12:06:50,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-17 12:06:50,470 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:06:50,470 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] [2021-11-17 12:06:50,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-17 12:06:50,471 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)] === [2021-11-17 12:06:50,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:06:50,473 INFO L85 PathProgramCache]: Analyzing trace with hash 2117997395, now seen corresponding path program 1 times [2021-11-17 12:06:50,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:06:50,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580758935] [2021-11-17 12:06:50,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:06:50,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:06:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:06:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:06:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 12:06:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:06:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:06:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:06:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:06:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:06:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:06:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:06:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:06:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:06:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:06:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:06:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 12:06:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 12:06:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:06:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 12:06:51,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:51,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 12:06:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:52,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 12:06:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:52,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 12:06:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:52,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 12:06:52,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:52,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 12:06:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:52,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 12:06:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:52,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 12:06:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:52,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 12:06:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:52,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 12:06:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:52,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 12:06:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:52,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 12:06:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:52,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:06:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:52,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 12:06:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:52,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 12:06:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:52,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 12:06:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:52,570 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2021-11-17 12:06:52,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:06:52,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580758935] [2021-11-17 12:06:52,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580758935] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 12:06:52,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135732331] [2021-11-17 12:06:52,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:06:52,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:06:52,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 12:06:52,572 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 12:06:52,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 12:06:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:06:53,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 3728 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-17 12:06:53,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 12:06:54,880 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2021-11-17 12:06:54,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 12:06:54,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135732331] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:06:54,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 12:06:54,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 17 [2021-11-17 12:06:54,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724933973] [2021-11-17 12:06:54,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:06:54,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 12:06:54,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:06:54,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 12:06:54,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2021-11-17 12:06:54,882 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) [2021-11-17 12:07:01,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:07:01,095 INFO L93 Difference]: Finished difference Result 21739 states and 30821 transitions. [2021-11-17 12:07:01,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 12:07:01,095 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 [2021-11-17 12:07:01,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:07:01,141 INFO L225 Difference]: With dead ends: 21739 [2021-11-17 12:07:01,141 INFO L226 Difference]: Without dead ends: 12073 [2021-11-17 12:07:01,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 268 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=104, Invalid=598, Unknown=0, NotChecked=0, Total=702 [2021-11-17 12:07:01,175 INFO L933 BasicCegarLoop]: 6330 mSDtfsCounter, 2089 mSDsluCounter, 60281 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 698 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2310 SdHoareTripleChecker+Valid, 66611 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-17 12:07:01,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2310 Valid, 66611 Invalid, 1399 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [698 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-11-17 12:07:01,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12073 states. [2021-11-17 12:07:01,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12073 to 9699. [2021-11-17 12:07:01,742 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) [2021-11-17 12:07:01,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9699 states to 9699 states and 13617 transitions. [2021-11-17 12:07:01,784 INFO L78 Accepts]: Start accepts. Automaton has 9699 states and 13617 transitions. Word has length 208 [2021-11-17 12:07:01,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:07:01,784 INFO L470 AbstractCegarLoop]: Abstraction has 9699 states and 13617 transitions. [2021-11-17 12:07:01,784 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) [2021-11-17 12:07:01,784 INFO L276 IsEmpty]: Start isEmpty. Operand 9699 states and 13617 transitions. [2021-11-17 12:07:01,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2021-11-17 12:07:01,787 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:07:01,787 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] [2021-11-17 12:07:01,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-17 12:07:02,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-17 12:07:02,003 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)] === [2021-11-17 12:07:02,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:07:02,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1038536204, now seen corresponding path program 1 times [2021-11-17 12:07:02,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:07:02,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997293492] [2021-11-17 12:07:02,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:07:02,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:07:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:07:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:07:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 12:07:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:07:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:07:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:07:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:07:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:07:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:07:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:07:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:07:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 12:07:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 12:07:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 12:07:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 12:07:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 12:07:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 12:07:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 12:07:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 12:07:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 12:07:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 12:07:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 12:07:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 12:07:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 12:07:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 12:07:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 12:07:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-17 12:07:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 12:07:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 12:07:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-17 12:07:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 12:07:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 12:07:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 12:07:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:02,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 12:07:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:07:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 12:07:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 12:07:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 12:07:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 12:07:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 12:07:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-11-17 12:07:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:07:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:07:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:07:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-11-17 12:07:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-11-17 12:07:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-17 12:07:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 12:07:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-17 12:07:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-11-17 12:07:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 12:07:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 12:07:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 12:07:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-17 12:07:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:07:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:07:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 12:07:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 12:07:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 12:07:02,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-17 12:07:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 12:07:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 12:07:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 12:07:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 12:07:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:02,699 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 826 trivial. 0 not checked. [2021-11-17 12:07:02,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:07:02,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997293492] [2021-11-17 12:07:02,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997293492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:07:02,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:07:02,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:07:02,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415664760] [2021-11-17 12:07:02,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:07:02,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:07:02,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:07:02,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:07:02,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:07:02,701 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) [2021-11-17 12:07:04,762 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 [] [2021-11-17 12:07:07,063 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:07:09,369 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:07:22,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:07:54,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:07:54,361 INFO L93 Difference]: Finished difference Result 21601 states and 30941 transitions. [2021-11-17 12:07:54,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 12:07:54,362 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 451 [2021-11-17 12:07:54,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:07:54,397 INFO L225 Difference]: With dead ends: 21601 [2021-11-17 12:07:54,398 INFO L226 Difference]: Without dead ends: 11921 [2021-11-17 12:07:54,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-11-17 12:07:54,420 INFO L933 BasicCegarLoop]: 4345 mSDtfsCounter, 10011 mSDsluCounter, 4185 mSDsCounter, 0 mSdLazyCounter, 5206 mSolverCounterSat, 8347 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10536 SdHoareTripleChecker+Valid, 8530 SdHoareTripleChecker+Invalid, 13557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8347 IncrementalHoareTripleChecker+Valid, 5206 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.6s IncrementalHoareTripleChecker+Time [2021-11-17 12:07:54,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10536 Valid, 8530 Invalid, 13557 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8347 Valid, 5206 Invalid, 4 Unknown, 0 Unchecked, 49.6s Time] [2021-11-17 12:07:54,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11921 states. [2021-11-17 12:07:54,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11921 to 9699. [2021-11-17 12:07:54,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9699 states, 6393 states have (on average 1.2621617394024716) internal successors, (8069), 6593 states have internal predecessors, (8069), 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) [2021-11-17 12:07:54,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9699 states to 9699 states and 13615 transitions. [2021-11-17 12:07:54,952 INFO L78 Accepts]: Start accepts. Automaton has 9699 states and 13615 transitions. Word has length 451 [2021-11-17 12:07:54,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:07:54,953 INFO L470 AbstractCegarLoop]: Abstraction has 9699 states and 13615 transitions. [2021-11-17 12:07:54,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-17 12:07:54,953 INFO L276 IsEmpty]: Start isEmpty. Operand 9699 states and 13615 transitions. [2021-11-17 12:07:54,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2021-11-17 12:07:54,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:07:54,956 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] [2021-11-17 12:07:54,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-17 12:07:54,956 INFO L402 AbstractCegarLoop]: === Iteration 30 === 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)] === [2021-11-17 12:07:54,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:07:54,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1982531022, now seen corresponding path program 1 times [2021-11-17 12:07:54,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:07:54,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445802581] [2021-11-17 12:07:54,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:07:54,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:07:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:07:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:07:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 12:07:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:07:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:07:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:07:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:07:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:07:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:07:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:07:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:07:55,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 12:07:55,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 12:07:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 12:07:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 12:07:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 12:07:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 12:07:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 12:07:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 12:07:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 12:07:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 12:07:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 12:07:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 12:07:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 12:07:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 12:07:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 12:07:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-17 12:07:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 12:07:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 12:07:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-17 12:07:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 12:07:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 12:07:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 12:07:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 12:07:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:07:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 12:07:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 12:07:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 12:07:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 12:07:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 12:07:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-11-17 12:07:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:07:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:07:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:07:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-11-17 12:07:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-11-17 12:07:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-17 12:07:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 12:07:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-17 12:07:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-11-17 12:07:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 12:07:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 12:07:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 12:07:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-17 12:07:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:07:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:07:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:07:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 12:07:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 12:07:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 12:07:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-17 12:07:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 12:07:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 12:07:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 12:07:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 12:07:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:07:55,566 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 826 trivial. 0 not checked. [2021-11-17 12:07:55,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:07:55,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445802581] [2021-11-17 12:07:55,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445802581] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:07:55,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:07:55,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 12:07:55,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100236905] [2021-11-17 12:07:55,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:07:55,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 12:07:55,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:07:55,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 12:07:55,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 12:07:55,568 INFO L87 Difference]: Start difference. First operand 9699 states and 13615 transitions. Second operand has 6 states, 6 states have (on average 32.0) internal successors, (192), 3 states have internal predecessors, (192), 3 states have call successors, (70), 5 states have call predecessors, (70), 1 states have return successors, (66), 2 states have call predecessors, (66), 3 states have call successors, (66) [2021-11-17 12:07:57,626 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 [] [2021-11-17 12:07:59,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:08:02,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:08:08,682 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:08:18,036 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:08:20,115 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:08:26,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:08:51,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:08:53,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:08:54,161 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 [] [2021-11-17 12:09:09,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:09:09,424 INFO L93 Difference]: Finished difference Result 21631 states and 30983 transitions. [2021-11-17 12:09:09,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 12:09:09,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.0) internal successors, (192), 3 states have internal predecessors, (192), 3 states have call successors, (70), 5 states have call predecessors, (70), 1 states have return successors, (66), 2 states have call predecessors, (66), 3 states have call successors, (66) Word has length 451 [2021-11-17 12:09:09,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:09:09,467 INFO L225 Difference]: With dead ends: 21631 [2021-11-17 12:09:09,467 INFO L226 Difference]: Without dead ends: 11951 [2021-11-17 12:09:09,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:09:09,493 INFO L933 BasicCegarLoop]: 4270 mSDtfsCounter, 5636 mSDsluCounter, 7309 mSDsCounter, 0 mSdLazyCounter, 7628 mSolverCounterSat, 5952 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6030 SdHoareTripleChecker+Valid, 11579 SdHoareTripleChecker+Invalid, 13586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5952 IncrementalHoareTripleChecker+Valid, 7628 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.9s IncrementalHoareTripleChecker+Time [2021-11-17 12:09:09,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6030 Valid, 11579 Invalid, 13586 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5952 Valid, 7628 Invalid, 6 Unknown, 0 Unchecked, 71.9s Time] [2021-11-17 12:09:09,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11951 states. [2021-11-17 12:09:10,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11951 to 9705. [2021-11-17 12:09:10,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9705 states, 6399 states have (on average 1.2619159243631817) internal successors, (8075), 6599 states have internal predecessors, (8075), 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) [2021-11-17 12:09:10,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9705 states to 9705 states and 13621 transitions. [2021-11-17 12:09:10,158 INFO L78 Accepts]: Start accepts. Automaton has 9705 states and 13621 transitions. Word has length 451 [2021-11-17 12:09:10,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:09:10,158 INFO L470 AbstractCegarLoop]: Abstraction has 9705 states and 13621 transitions. [2021-11-17 12:09:10,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.0) internal successors, (192), 3 states have internal predecessors, (192), 3 states have call successors, (70), 5 states have call predecessors, (70), 1 states have return successors, (66), 2 states have call predecessors, (66), 3 states have call successors, (66) [2021-11-17 12:09:10,158 INFO L276 IsEmpty]: Start isEmpty. Operand 9705 states and 13621 transitions. [2021-11-17 12:09:10,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2021-11-17 12:09:10,161 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:09:10,161 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 8, 8, 8, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:09:10,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-17 12:09:10,161 INFO L402 AbstractCegarLoop]: === Iteration 31 === 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)] === [2021-11-17 12:09:10,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:09:10,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1972465237, now seen corresponding path program 1 times [2021-11-17 12:09:10,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:09:10,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609827804] [2021-11-17 12:09:10,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:09:10,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:09:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:09:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 12:09:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:09:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:09:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:09:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:09:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:09:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 12:09:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 12:09:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 12:09:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 12:09:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 12:09:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 12:09:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 12:09:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 12:09:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 12:09:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 12:09:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 12:09:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 12:09:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 12:09:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 12:09:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 12:09:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 12:09:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 12:09:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 12:09:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 12:09:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 12:09:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 12:09:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 12:09:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 12:09:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 12:09:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 12:09:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 12:09:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 12:09:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-17 12:09:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 12:09:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 12:09:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-11-17 12:09:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-17 12:09:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-11-17 12:09:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:09:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:09:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-17 12:09:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 12:09:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-11-17 12:09:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-17 12:09:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-11-17 12:09:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-11-17 12:09:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 12:09:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 12:09:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 12:09:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-17 12:09:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:09:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 12:09:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 12:09:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 12:09:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-17 12:09:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 12:09:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 12:09:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 12:09:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 12:09:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:10,893 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2021-11-17 12:09:10,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:09:10,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609827804] [2021-11-17 12:09:10,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609827804] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 12:09:10,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90892542] [2021-11-17 12:09:10,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:09:10,893 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:09:10,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 12:09:10,894 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 12:09:10,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 12:09:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:12,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 5258 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 12:09:12,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 12:09:13,619 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2021-11-17 12:09:13,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 12:09:13,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90892542] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:09:13,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 12:09:13,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-11-17 12:09:13,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065694601] [2021-11-17 12:09:13,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:09:13,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 12:09:13,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:09:13,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 12:09:13,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-17 12:09:13,621 INFO L87 Difference]: Start difference. First operand 9705 states and 13621 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2021-11-17 12:09:14,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:09:14,148 INFO L93 Difference]: Finished difference Result 19394 states and 27269 transitions. [2021-11-17 12:09:14,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 12:09:14,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 471 [2021-11-17 12:09:14,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:09:14,182 INFO L225 Difference]: With dead ends: 19394 [2021-11-17 12:09:14,182 INFO L226 Difference]: Without dead ends: 9708 [2021-11-17 12:09:14,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 622 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-17 12:09:14,211 INFO L933 BasicCegarLoop]: 5054 mSDtfsCounter, 1 mSDsluCounter, 5051 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10105 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 12:09:14,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 10105 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 12:09:14,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9708 states. [2021-11-17 12:09:14,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9708 to 9708. [2021-11-17 12:09:14,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9708 states, 6402 states have (on average 1.2617931896282413) internal successors, (8078), 6602 states have internal predecessors, (8078), 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) [2021-11-17 12:09:14,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9708 states to 9708 states and 13624 transitions. [2021-11-17 12:09:14,831 INFO L78 Accepts]: Start accepts. Automaton has 9708 states and 13624 transitions. Word has length 471 [2021-11-17 12:09:14,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:09:14,832 INFO L470 AbstractCegarLoop]: Abstraction has 9708 states and 13624 transitions. [2021-11-17 12:09:14,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2021-11-17 12:09:14,832 INFO L276 IsEmpty]: Start isEmpty. Operand 9708 states and 13624 transitions. [2021-11-17 12:09:14,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2021-11-17 12:09:14,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:09:14,835 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 8, 8, 8, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:09:14,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-17 12:09:15,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-11-17 12:09:15,044 INFO L402 AbstractCegarLoop]: === Iteration 32 === 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)] === [2021-11-17 12:09:15,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:09:15,045 INFO L85 PathProgramCache]: Analyzing trace with hash 2102678542, now seen corresponding path program 1 times [2021-11-17 12:09:15,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:09:15,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356744400] [2021-11-17 12:09:15,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:09:15,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:09:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:09:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 12:09:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:09:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:09:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:09:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:09:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:09:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 12:09:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 12:09:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 12:09:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 12:09:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 12:09:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 12:09:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 12:09:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 12:09:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 12:09:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 12:09:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 12:09:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 12:09:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 12:09:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 12:09:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 12:09:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 12:09:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 12:09:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 12:09:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 12:09:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 12:09:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 12:09:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 12:09:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 12:09:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 12:09:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 12:09:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 12:09:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 12:09:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-11-17 12:09:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-11-17 12:09:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 12:09:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-17 12:09:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-17 12:09:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-17 12:09:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 12:09:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:09:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:09:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-17 12:09:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 12:09:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2021-11-17 12:09:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-11-17 12:09:15,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-11-17 12:09:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-11-17 12:09:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 12:09:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 12:09:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 12:09:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2021-11-17 12:09:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:09:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 12:09:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 12:09:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 12:09:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-17 12:09:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 12:09:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 12:09:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 12:09:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 12:09:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:15,779 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 881 trivial. 0 not checked. [2021-11-17 12:09:15,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:09:15,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356744400] [2021-11-17 12:09:15,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356744400] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 12:09:15,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234340042] [2021-11-17 12:09:15,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:09:15,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:09:15,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 12:09:15,781 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 12:09:15,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-17 12:09:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:16,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 5282 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-17 12:09:16,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 12:09:19,356 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 836 trivial. 0 not checked. [2021-11-17 12:09:19,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 12:09:19,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234340042] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:09:19,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 12:09:19,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2021-11-17 12:09:19,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072283960] [2021-11-17 12:09:19,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:09:19,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 12:09:19,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:09:19,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 12:09:19,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:09:19,358 INFO L87 Difference]: Start difference. First operand 9708 states and 13624 transitions. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2021-11-17 12:09:20,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:09:20,820 INFO L93 Difference]: Finished difference Result 20874 states and 29475 transitions. [2021-11-17 12:09:20,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 12:09:20,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 479 [2021-11-17 12:09:20,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:09:20,965 INFO L225 Difference]: With dead ends: 20874 [2021-11-17 12:09:20,966 INFO L226 Difference]: Without dead ends: 11185 [2021-11-17 12:09:20,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 632 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-17 12:09:20,987 INFO L933 BasicCegarLoop]: 6339 mSDtfsCounter, 1559 mSDsluCounter, 16960 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 541 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 23299 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 541 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-17 12:09:20,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1570 Valid, 23299 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [541 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-17 12:09:20,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11185 states. [2021-11-17 12:09:21,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11185 to 9714. [2021-11-17 12:09:21,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9714 states, 6408 states have (on average 1.2615480649188515) internal successors, (8084), 6608 states have internal predecessors, (8084), 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) [2021-11-17 12:09:21,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9714 states to 9714 states and 13630 transitions. [2021-11-17 12:09:21,518 INFO L78 Accepts]: Start accepts. Automaton has 9714 states and 13630 transitions. Word has length 479 [2021-11-17 12:09:21,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:09:21,518 INFO L470 AbstractCegarLoop]: Abstraction has 9714 states and 13630 transitions. [2021-11-17 12:09:21,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2021-11-17 12:09:21,518 INFO L276 IsEmpty]: Start isEmpty. Operand 9714 states and 13630 transitions. [2021-11-17 12:09:21,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2021-11-17 12:09:21,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:09:21,521 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 8, 8, 8, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:09:21,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-17 12:09:21,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:09:21,722 INFO L402 AbstractCegarLoop]: === Iteration 33 === 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)] === [2021-11-17 12:09:21,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:09:21,722 INFO L85 PathProgramCache]: Analyzing trace with hash 911020304, now seen corresponding path program 1 times [2021-11-17 12:09:21,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:09:21,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182015334] [2021-11-17 12:09:21,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:09:21,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:09:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:09:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 12:09:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:09:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:09:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:09:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:09:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:09:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 12:09:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 12:09:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 12:09:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 12:09:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 12:09:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 12:09:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 12:09:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 12:09:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 12:09:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 12:09:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 12:09:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 12:09:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 12:09:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 12:09:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 12:09:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 12:09:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 12:09:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 12:09:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 12:09:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 12:09:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 12:09:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 12:09:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 12:09:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 12:09:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 12:09:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 12:09:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 12:09:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-11-17 12:09:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-11-17 12:09:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 12:09:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-17 12:09:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-17 12:09:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-17 12:09:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 12:09:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:09:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:09:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-17 12:09:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 12:09:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2021-11-17 12:09:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-11-17 12:09:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-11-17 12:09:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-11-17 12:09:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 12:09:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 12:09:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 12:09:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2021-11-17 12:09:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:09:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:09:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:09:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 12:09:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 12:09:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 12:09:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-17 12:09:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 12:09:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 12:09:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 12:09:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 12:09:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:22,447 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 881 trivial. 0 not checked. [2021-11-17 12:09:22,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:09:22,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182015334] [2021-11-17 12:09:22,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182015334] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 12:09:22,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325288077] [2021-11-17 12:09:22,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:09:22,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:09:22,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 12:09:22,448 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 12:09:22,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-17 12:09:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:09:23,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 5284 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 12:09:23,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 12:09:25,577 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 76 proven. 1 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2021-11-17 12:09:25,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 12:09:26,873 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 881 trivial. 0 not checked. [2021-11-17 12:09:26,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325288077] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 12:09:26,873 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 12:09:26,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2021-11-17 12:09:26,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432226083] [2021-11-17 12:09:26,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 12:09:26,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 12:09:26,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:09:26,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 12:09:26,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-17 12:09:26,875 INFO L87 Difference]: Start difference. First operand 9714 states and 13630 transitions. Second operand has 10 states, 10 states have (on average 29.0) internal successors, (290), 7 states have internal predecessors, (290), 6 states have call successors, (142), 5 states have call predecessors, (142), 2 states have return successors, (126), 5 states have call predecessors, (126), 6 states have call successors, (126) [2021-11-17 12:09:28,936 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 [] [2021-11-17 12:09:31,233 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:09:33,539 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:09:57,613 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:10:30,006 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 12:10:47,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 12:10:47,387 INFO L93 Difference]: Finished difference Result 21719 states and 31100 transitions. [2021-11-17 12:10:47,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-17 12:10:47,388 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 29.0) internal successors, (290), 7 states have internal predecessors, (290), 6 states have call successors, (142), 5 states have call predecessors, (142), 2 states have return successors, (126), 5 states have call predecessors, (126), 6 states have call successors, (126) Word has length 479 [2021-11-17 12:10:47,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 12:10:47,431 INFO L225 Difference]: With dead ends: 21719 [2021-11-17 12:10:47,432 INFO L226 Difference]: Without dead ends: 12024 [2021-11-17 12:10:47,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1124 GetRequests, 1112 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-11-17 12:10:47,462 INFO L933 BasicCegarLoop]: 4363 mSDtfsCounter, 5619 mSDsluCounter, 10637 mSDsCounter, 0 mSdLazyCounter, 10136 mSolverCounterSat, 6006 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6023 SdHoareTripleChecker+Valid, 15000 SdHoareTripleChecker+Invalid, 16146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6006 IncrementalHoareTripleChecker+Valid, 10136 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.4s IncrementalHoareTripleChecker+Time [2021-11-17 12:10:47,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6023 Valid, 15000 Invalid, 16146 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6006 Valid, 10136 Invalid, 4 Unknown, 0 Unchecked, 78.4s Time] [2021-11-17 12:10:47,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12024 states. [2021-11-17 12:10:48,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12024 to 9794. [2021-11-17 12:10:48,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9794 states, 6458 states have (on average 1.259523072158563) internal successors, (8134), 6658 states have internal predecessors, (8134), 2702 states have call successors, (2702), 607 states have call predecessors, (2702), 631 states have return successors, (2904), 2666 states have call predecessors, (2904), 2699 states have call successors, (2904) [2021-11-17 12:10:48,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9794 states to 9794 states and 13740 transitions. [2021-11-17 12:10:48,158 INFO L78 Accepts]: Start accepts. Automaton has 9794 states and 13740 transitions. Word has length 479 [2021-11-17 12:10:48,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 12:10:48,159 INFO L470 AbstractCegarLoop]: Abstraction has 9794 states and 13740 transitions. [2021-11-17 12:10:48,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 29.0) internal successors, (290), 7 states have internal predecessors, (290), 6 states have call successors, (142), 5 states have call predecessors, (142), 2 states have return successors, (126), 5 states have call predecessors, (126), 6 states have call successors, (126) [2021-11-17 12:10:48,159 INFO L276 IsEmpty]: Start isEmpty. Operand 9794 states and 13740 transitions. [2021-11-17 12:10:48,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2021-11-17 12:10:48,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 12:10:48,162 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 12, 8, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 12:10:48,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-17 12:10:48,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 12:10:48,368 INFO L402 AbstractCegarLoop]: === Iteration 34 === 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)] === [2021-11-17 12:10:48,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 12:10:48,368 INFO L85 PathProgramCache]: Analyzing trace with hash 572470907, now seen corresponding path program 2 times [2021-11-17 12:10:48,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 12:10:48,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817615483] [2021-11-17 12:10:48,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 12:10:48,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 12:10:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:10:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 12:10:48,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 12:10:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:10:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:10:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:10:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 12:10:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:10:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:10:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:10:48,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 12:10:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:10:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:10:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:10:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 12:10:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 12:10:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:10:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 12:10:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 12:10:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 12:10:48,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 12:10:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 12:10:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 12:10:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 12:10:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 12:10:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 12:10:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 12:10:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 12:10:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 12:10:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 12:10:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 12:10:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 12:10:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 12:10:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 12:10:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 12:10:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 12:10:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 12:10:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-17 12:10:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-17 12:10:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 12:10:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 12:10:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-11-17 12:10:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-17 12:10:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 12:10:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 12:10:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-17 12:10:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 12:10:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 12:10:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 12:10:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 12:10:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-17 12:10:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-17 12:10:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-17 12:10:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:10:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-11-17 12:10:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:10:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:10:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:48,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-11-17 12:10:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-17 12:10:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 12:10:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 12:10:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-17 12:10:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2021-11-17 12:10:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-11-17 12:10:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:10:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:10:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 12:10:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 12:10:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2021-11-17 12:10:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2021-11-17 12:10:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-11-17 12:10:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 12:10:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2021-11-17 12:10:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2021-11-17 12:10:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:10:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 12:10:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 12:10:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 12:10:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2021-11-17 12:10:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 12:10:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 12:10:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 12:10:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 12:10:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 12:10:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 12:10:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-17 12:10:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 12:10:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 12:10:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 12:10:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 12:10:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 12:10:49,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1238 trivial. 0 not checked. [2021-11-17 12:10:49,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 12:10:49,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817615483] [2021-11-17 12:10:49,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817615483] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 12:10:49,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 12:10:49,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 12:10:49,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020466874] [2021-11-17 12:10:49,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 12:10:49,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 12:10:49,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 12:10:49,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 12:10:49,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-17 12:10:49,263 INFO L87 Difference]: Start difference. First operand 9794 states and 13740 transitions. Second operand has 8 states, 8 states have (on average 25.25) internal successors, (202), 5 states have internal predecessors, (202), 4 states have call successors, (75), 5 states have call predecessors, (75), 2 states have return successors, (71), 2 states have call predecessors, (71), 4 states have call successors, (71) [2021-11-17 12:10:51,332 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 [] Killed by 15